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2013-08-12 STMA Ice Arena Board PacketCity of A,lbertville�. Michael SnmU Town EirkiW ft rity UNh STMA STMA ARENA BOARD AGENDA MONDAY, AUGUST 12, 2013 ALBERTVILLE CITY HALL 6:00 PM 1. CALL TO ORDER — ROLL CALL 2. ADOPT AGENDA 3. APPROVAL OF THE NHNUTES OF JULY 8, 2013 (pgs 1-2) 4. FINANCE REPORTS a) Approve the July list of claims as presented in the amount of $10,094.10 and July report (pgs 3-5) 5. MANAGER'S REPORT a) Monthly report (pg 6) 6. OLD BUSINESS a) 292 Consulting Group - Roof Report (pgs 7-38) 7. NEW BUSINESS 8. YOUTH HOCKEY ASSOCIATION 9. ADJOURN (by 7:00) MAPublic Data\Arena\2013\agendas\08-12-2013\08122013 S'I'MA Agenda.doc ST. MICHAEL-ALBERTVILLE ARENA BOARD MINUTES July 8, 2013 6:00 p.m. Present: Chairman Jeff Lindquist and Members, Dan Wagner, Chris Schumm, Kevin Kasel, and Larry Sorensen were present. Member Gayle Weber and Arena Manager Grant Fitch were absent. Also present: City Administrator/PWD Adam Nafstad, City Finance Director Tina Lannes, Youth Hockey Association Representatives, Kurt Sjelin, and Matt Mayer from KDV. The meeting was called to order at 6:03 p.m. by Chairman Lindquist. Set Agenda Members Schumm/Sorensen moved to set the agenda as presented. All voted aye. Approval of Minutes Members Sorensen/Schumm moved to approve the minutes of the June 10, 2013, as amended, Board Meeting. All voted aye. Special Reporting District Matt Mayer from KDV presented to the board the requirements from the Office of the State Auditor that the arena should be a special reporting district. He continued to go over the requirements of this type of district including having separate financial statements that are audited. City staff will work with the City Attorney on the process going forward with the requirements of the state. Finance Reports Finance Director Lannes informed the board that the $10,000 check for 2012 was received from the school district on July 81h. Chairman Lindquist asked about the expense of $950.00 for the arena z door repair. Nafstad explained that the doors were heaved and we contracted it out because the risk of breaking a cooling tube was too great. Members Schumm/Wagner moved to approve the June 2013 list of claims in the amount of $9,173.56 and the June Financial Report as presented. All voted aye. Arena Manager's Report Nafstad updated the board on the roof issues and stated he expects to have the architect present the design options at the August meeting. Nafstad stated that he is of the impression that the options will all be a rather significant and unlikely achievable prior to the 2013/14 season. Wagner asked if there were any options for some type of temporary gutter system or diaper to get us through the season. Nafstad stated that leaks are being managed very well and that they are slowing down, and it is likely that we will not notice the dripping once the outdoor temperature falls. The Board stated safety is top priority and of the most concern. Nafstad stated that the Youth Hockey Association had shared their concerns with Grant, and they too were concerned about safely, and whether or not it was appropriate to hold tournaments in the facility. The board directed staff to look at a possible gutter system or tent systems to redirect the drippings off the ice as a backup plan. Kurt Sjelin from youth hockey asked the question about how the Board feels the ice will be if they were to accept the District 5 regional tournament or should they turn it down. His concern is safety and if the ice will be usable. The board let Sjelin know that it is up to him whether or not to have the tournament this year. Old Business Lannes updated the Board on the transfer of advertising from Franklin Outdoor to Youth Hockey. Franklin Outdoor wants the Arena Board or Youth Hockey to buy the remaining contracts in the amount of $5,500. Nafstad stated it would have to be the Board that buys out the contracts and then Youth Hockey could reimburse the $5,500 and take over the contracts. There was no action needed at STMA Arena Board Mtg 08/12/13 Page 1 STMA Ice Arena July 8, 2013 Minutes Page 2 this time. Staff will continue to work with Youth Hockey and once the agreements are ready they will be presented to the board. Lindquist provided an update on the School Board's meeting in regards to the outdoor sheet of ice. The Board liked the idea and was in favor of allowing youth hockey to use that land for the outdoor sheet of ice. There are still details and issues to work out and Youth Hockey will be providing the School Superintendent with the details and description of the project. Youth Hockey Association Sjelin told the Board that the dry land facility is coming along well and they are just waiting on the building official to confirm what needs to be done with the air exchange system. They hope to open the facility in August. Adiourn Members Wagner/Kasel moved to adjourn at 6:58 p.m. All voted aye. Attest: Tina Lannes, City Finance Director STMA Arena Board Mtg 08/12/13 Page 2 City of Ibertvi £ MIA t. Michael 1lST Small Tow Lining. ®ig City liFa. STMA Budget to Actual July 2013 (Cash Basis) 2013 Budget $5 2013 Actual rate increase no July 2013 YTD % asst. mgr Actual 7/31/13 Annual Income Ice Rental $264,580.15 $6,300.00 $155,088.94 58.62% Concessions $33,000.00 $154.00 $17,785.75 53.90% Other Revenues (Advertising/LMC/ins claims) $12,000.00 $0.00 $8,913.00 74.28% Vending $1,350.00 $44.77 $685.91 50.81% Open Skate/Hockey, etc $10,000.00 $30.00 $879.95 8.80% Interest $1,200.00 $0.00 $0.00 0.00% Misc Revenue $1,300.00 $690.00 $3,325.05 Total Income $323,430.15 $7,218.77 $186,678.60 57.72% Expenses Salaries, wages, taxes & Benefits $111,410.00 $6,868.06 $62,716.71 56.29% Supplies (Office, misc) $1,500.00 $125.00 $1,046.45 69.76% Supplies (Concession) $13,250.00 $0.00 $4,474.47 33.77% Fuel, Misc $2,300.00 $155.48 $827.65 35.98% Professional Services $15,000.00 $87.25 $8,939.94 59.60% Sales Tax $3,200.00 $74.00 $1,828.88 57.15% Telephone $1,100.00 $0.00 $454.99 41.36% Electric $75,000.00 $29.87 $24,830.68 33.11 % Gas $6,500.00 $847.92 $4,595.00 70.69% Water $14,000.00 $346.56 $11,636.77 83.12% Refuse $2,200.00 $75.74 $615.69 27.99% Insurance $10,000.00 $0.00 $7,457.00 74.57% Administration $11,346.48 $943.73 $6,618.78 58.33% Misc. $2,250.00 $0.00 $15.07 0.67% Depreciation $43,000.00 $0.00 $0.00 0.00% Repair Maintenance — Machinery $10,000.00 $2,867.39 $4,282.23 42.82% Repair Maintenance — Building $25,000.00 $5,826.65 $17,197.58 68.79% Total Operating Expenses $347,056.48 $18,247.65 $157,537.89 45.39% Net Income/Loss ($23,626.33) ($11,028.88) $29,140.71 STMA Arena Board Mtg 08/12/13 Page 3 STMA CASH BALANCES AND RECEIVABLES July 31, 2013 Cash Balance Operations Cash Balance 1/1/13 $131,405 Add Revenues $186,679 Less Expenses $157,538 Add in Depreciation $ - Less payables booked 2012 Pd 2013 $ 10,672 Cash Balance 7/31/13 $149,873 Restricted Cash (depreciation) $78,457 Cash for operations $71,416 Total Cash Balance 7/31/13 $149,873 Accounts Receivable July 31, 2013 - $16,859.70 Cash Balance Dedicated Capital Improvement Fund Arena Owner Dedicated Cap. Imp. Fund Beginning Balance 1/1/13 $20,000 2012 contribution re. by STMA schools $10,000 2013 contribution rec. by St. Michael $0 2013 contribution rec. by Albertville $0 2013 contribution rec. by STMA Schools $0 Balance 7/31/13 $30,000 STMA Arena Board Mtg 08/12/13 Page 4 STMA Vendor Check Detail Register July 2013 Check Amt Invoice Comment 10100 Premier Bank Paid Chk# 002090E 7/15/2013 RANDYS ENVIRONMENTAL SERVICES E 810-00000-384 Refuse/Garbage Disposal $75.74 1-56027-3 JUL13 STMA Arena garbage Paid Chk# 002092E 7/15/2013 WRIGHT-HENNEPIN COOP ELECTRIC E 810-00000-381 Electric Utilities $29.87 05014270100 STMA Arena fire panel monitoring Aug 2013 Paid Chk# 002094E 7/15/2013 FERRELLGAS E 810-00000-212 Motor Fuels $155.48 1076879528 STMAArena Fuel Paid Chk# 002135E 7/22/2013 MN DEPARTMENT OF REVENUE E 810-00000-315 Sales Tax $42.00 sales tax Paid Chk# 032218 7/1/2013 METLIFE (VISION) E 810-00000-130 Employer Paid Ins (GENERAL) $22.61 July 2013 Employee Vision Paid Chk# 032219 7/1/2013 METLIFE-GROUP BENEFITS E 810-00000-130 Employer Paid Ins (GENERAL) $127.50 July 2013 Paid Chk# 032239 7/1/2013 R&R SPECIALTIES OF WISCONSIN E 810-00000-405 Repair/Maint - Buildings $1,667.00 52368-IN Paid Chk# 032242 7/1/2013 SCR, INC - ST. CLOUD E 810-00000-405 Repair/Maint - Buildings Paid Chk# 032247 7/1/2013 XCEL ENERGY E 810-00000-381 Electric Utilities $583.33 266761 Emp Life, Dental, Stdis Jet ice white paint and labor STMA Arena July Maintenance $4,981.28 371961639 STMA Arena 5898 Lachman Ave NE Paid Chk# 032257 7/15/2013 ARAMARK UNIFORM SERVICES E 810-00000-405 Repair/Maint - Buildings $18.94 629-7774248 STMA Arena Mats, Mop, Laundry Bag Paid Chk# 032260 7/15/2013 BCBS OF MINNESOTA E 810-00000-130 Employer Paid Ins (GENERAL) $776.75 CI261-10-0 Emp Health Ins Paid Chk# 032261 7/15/2013 BECKER ARENA PRODUCTS, INC E 810-00000-405 Repair/Maint - Buildings $627.00 94062 STMA Arena Ultimate total vinyl kit with tools Paid Chk# 032263 7/15/2013 CENTERPOINT ENERGY E 810-00000-383 Gas Utilities $117.33 5390131-0 STMA Arena 5898 Lachman Ave NE E 810-00000-383 Gas Utilities $730.59 5390131-0 STMA Arena 5898 Lachman Ave NE Paid Chk# 032274 7/15/2013 DJS TOTAL HOME CARE CTR-ARENA E 810-00000-405 Repair/Maint - Buildings ($23.97) 69666 STMA Arena Return 4 tubs of caulking & 1 brass twist E 810-00000-405 Repair/Maint - Buildings E 810-00000-405 Repair/Maint - Buildings E 810-00000-405 Repair/Maint - Buildings E 810-00000-405 Repair/Maint - Buildings E 810-00000-405 Repair/Maint - Buildings E 810-00000-405 Repair/Maint - Buildings E 810-00000-405 Repair/Maint - Buildings E 810-00000-405 Repair/Maint - Buildings $2.05 69696 STMA Arena Misc hardware $15.98 69741 STMA ArenabalI valve & thread seal tape $20.98 69795 STMA Arena Drill bit and saw hole ($22.14) 69807 STMA Arena Return drill bit, saw hole, & misc. hardware $8.29 69948 STMA Arena duct tape, Mr. Clean, misc. hardware ($4.99) 69953 STMA Arena Return duct tape $4.49 69975 STMA Arena AA batteries $7.99 70249 STMA Arena wall clock Paid Chk# 032286 7/15/2013 MARKS CONCESSION REPAIR LLC E 810-00000-405 Repair/Maint - Buildings $130.00 1014 810 STMA ARENA July 2013 $10,094.10 STMA Arena Popcorn Popper Repair STMA Arena Board Mtg 08/12/13 Page 5 A,lbertville Snw.,� Lhdng. Mg My Uf SaTM A MANAGER' GENERAL UPDATE Date: August 8, 2013 To: STMA Arena Board From: Grant Fitch, STMA Arena Manager ARENA RENTAL HOURS — JULY: Name Prime -time Youth Hockey 0 hours High School Boys/Girls 51 hours Public Skating 16 hours/$0 Private rentals 34 hours/$145 hr Learn To Skate 11.5 hours/$145 hr Total hours 112.5 hours Total Available hours 216 Prime hours A of �. Michael L Off-peak ARENA ROOF: No dripping since July 29th (lower outdoor temps and humidity levels) BUILDING MAINTENANCE ACTIVITIES: • Replacing all bulbs over the rink — 32 fixtures 6 bulbs each = 192 total • Striping parking lot • Compressor maintenance — no major repairs • Condenser — inspect and power wash coils • RO water treatment — replace carbon tanks • Olympia — emissions test SUMMER CAMP ATTENDANCE (concluded July 26): High School-40, Bantam-35, Peewee-30, Squirt-32, Mite-28 Summer Ice Summary (time booked for June thru August): LTS 17.5 hours High School 136.5 hours D-5 officials 8.5 hours Girls Summer Ice 7.0 hours THDP/Private 96.5 hours LAX 21.25 Open Skate 41 hours Open Hockey 63 hours Adult Hockey 17 hours AAA 2 hours YH/Private 95.25 hours Total 505.5 hours STMA Arena Board Mtg 08/12/13 Page 6 29ZDesignGroup minneapolis DRAFT August 8, 2013 Consulting Firms: 292 Design Group 9100 49t" Avenue North Minneapolis, MN 55428 P. 763.533.3813 F. 763.367.7601 Tom Betti, AIA tbetti@292designgroup.com Nelson Rudie & Associates 9100 49t" Avenue North Minneapolis, MN 55428 P. 763.367.7600 F. 763.367.7601 Michael D. Woehrle, P.E. Michael.Woehrle@nelsonrudie.com Judd Allen Group 8000 West 78t" Street, Suite 180 Edina, MN 55439 P. 952.224.5050 F. 952.224.5051 Judd Peterson, President 0Peterson@iuddallen.com History 292 Design Group was hired by the City of Albertville in March of 2013 to investigate the problem with the existing ice arena roof; it was leaking or having condensation issues. In June of 2013 the Youth Hockey Association hired 292 Design Group to provide schematic drawings and to provide cost estimates based on the earlier investigative work. Please refer to 292 study included as "Attachment A". Schematic Design and Cost Estimate 292 Design Group developed five different roof sections that included the existing roof condition along with four alternative solutions for insulating the roof. Refer to "Attachment B". The options are as follows: Option 1: Remove existing fiberglass insulation and foil vapor barrier. Provide R-30 of rigid insulation above the existing metal roof and a new metal roof system over the new insulation. Install new Low-E ceiling system below existing roof structure. 763.533.3813 9100 49!tW' :'°`rena Board Mtg 08/12/,1,8 !Page;7 29ZDesignGroup minneapolis Option 2: Same as Option 1 except a fully adhered vapor barrier is installed between the existing metal roof and new rigid insulation. Install new Low-E ceiling system below existing roof structure. Option 3: Leave the existing fiberglass insulation in place and install the components of Option 1 above the existing metal roof. Install new Low-E ceiling system below existing roof structure. Option 4: Remove existing fiberglass insulation and foil vapor barrier. Install R-20 of spray applied closed cell insulation with a thermal protective barrier. Install new Low-E ceiling system below existing roof structure. Note: based on thermal analysis final R-value was increased to R-28. These five roof sections were then thermally modeled to see how they would perform given the ice arena environment and the change in seasons. Each section was modeled utilizing summer and winter temperatures. Refer to "Attachment U for the thermal sections and analysis. Based on the thermal models the four options developed will provide an effective insulation and vapor barrier solution for the roof. Existing Roof Structure The new roof systems proposed will add weight to the existing roof structure, so the structural capacity of the roof needed to be analyzed. The problem is that there is no existing design information regarding the existing roof structure. When the building was originally built, the Minnesota code divided the state into two roof snow live loads, 30 psf and 40 psf. St. Michael Albertville falls on the line of these two loads. According to the building code for building alterations (IBC 3403.2) it states that; additions and alternations to an existing structure shall not increase the force in any structural element by more than 5%. So given the systems we are looking at, and assuming the existing building was designed for a roof live load was only 30 psf, the maximum increase to the structure is within a 4% increase over the original, thus less than the allowable 5% increase. Therefore the additional weight can be added to the existing roof structure. Also, given the solution that we are recommending will eliminate the accumulation of water and ice within the existing fiberglass insulation the net result is an actual decrease in overall roof loading. This is because the added weight associated to water and ice accumulation within the roof structure is approximately 1.8 psf, and the weight of the new system (foam insulation and thermal barrier) we are recommending is 1.25 psf. Existing Dehumidification system The existing dehumidification system uses a mechanical refrigeration process to dehumidify air by cooling arena air down below its dew point. This causes water to condense on the coil and drain out of the unit through the drain pan. The specific unit installed at the site has the ability to freeze water on the coil and melt it off through a defrost cycle. This theoretically allows the unit to dehumidify to dew points below or near 32°F. Waste heat from the refrigeration process is then run through a post heating coil and is used to heat the arena. As part of the study we had arena staff add a drain line to the dehumidification unit which allowed us to collect the water removed from the dehumidification unit. Our observations of the system indicate that the unit is only marginally effective at removing moisture from the arena air. Staff indicated that they typically filled a five gallon bucket less than half full in an hour of machine run time. This indicates that the dehumidification system is removing approximately 2.5 gallons of water per hour from the arena. We have estimated that to keep the arena at normal design conditions of 50°F and 50% relative humidity the dehumidification system would need to remove approximately 18 gallons of water per hour from the arena. It is clear from the moisture build-up in the 763.533.3813 9100 49�ffAA. 4rena Board Mtg 08/12/,9 !Page;8 292DesignGroup minneapolis arena and the actual water being collected from the dehumidification equipment that the system is not meeting the needs of the facility. The second part of our analysis of the existing dehumidification system involved estimating the amount of water that would be trapped in the building envelope during a typical winter and summer's worth of operation. The roof structure consists of a perforated foil bottom layer, a layer of fiberglass insulation, and a metal roof deck. As we illustrated in our previous letter, water will condense inside the fiberglass insulation system anytime the temperature of the insulation is below the dew point temperature of the air in the arena. This is the same concept used by the mechanical dehumidification system. The temperature of the cooling coil is maintained below the dew point temperature of the air and water condenses out of the air onto the cooling coil. We analyzed both the summer and winter conditions. The easiest way to understand how water moves through a building is to think about moisture content in terms of pressure. Air at a high humidity level will have a high vapor pressure. Air at a low humidity level and the same temperature will have a lower vapor pressure. Moisture will naturally try to move from the high vapor pressure condition to the low vapor pressure condition just like high pressure air in a balloon tries to leave the balloon and return to the lower pressure room air. For the majority of the time during the winter the moisture content of the arena air is higher than the moisture content of the outside air and moisture migrates up through the roof insulation system. When the moisture hits its dew point temperature in the insulation system it condenses and forms ice lenses in the insulation system. Our observation of the insulation system indicated that ice is definitely building up in the insulation during the winter months. We cut sections out and physically inspected the insulation and found it be filled with frozen water vapor and ice. Our engineering calculations indicate that during a normal winter as much as 1/3 of an inch of ice will build up weighing approximately 1.8 pounds per square foot. In addition to being a dripping hazard when the ice melts in the spring the ice adds a structural load to the building all winter long. The amount of ice that builds up in the insulation during the winter could be greatly reduced by installing a properly sized dehumidification system and removing the moisture from the building before it has a chance to condense in the insulation system, but we could never fully stop it from occurring. During the summer the vapor pressure of the outside air is generally higher than the vapor pressure of the arena air. This causes moisture to try and enter the arena through any cracks in the building envelope. This includes doors, vents, cracks, and straight through any permeable surface. The temperature inside the arena is still maintained near 50°F by the ice surface. In very humid outdoor conditions moisture infiltrates into the building and collects as water on the fiberglass insulation. If the humidity condition persists water eventually starts dripping down through the insulation onto the ice surface. If the high outdoor humidity condition is short lived the water in the in insulation system may evaporate either back into the arena air or back out through the building envelope if outside conditions are dry. It is a highly variable cycle which depends on the outdoor and indoor vapor pressures. Estimating how much water could condense in the summer during a prolonged humid spell is therefore much less accurate. We have estimated that water equivalent to 1.5 pounds per square foot could build up in the roof system during a long period of humid weather. Much of this moisture will drip down on to the arena surface. Recommendations Based on the above analysis 292 believes the best solution is to upgrade the dehumidification system, and to re -insulate the roof system and the metal framed wall system above the concrete block walls. We have had great success with high temperature desiccant dehumidification systems. Refer to "Attachment P for concept layout of dehumidification system. The units sit outside the building on a concrete pad with supply and return air distributed into the building. They require gas and electrical �TMAArena Board Mtg 08/12/,1.8 Page 29ZDesignGroup minneapolis connections. Our preliminary estimate indicates that a system circulating 10,000 CFM of air and removing 150 pounds of moisture from the air would be required. We also recommend that all outside air for the arena be introduced into the building through the dehumidification system. This allows the moisture to be removed from the air before it ever enters the building. The existing exhaust fan and intake louver could remain for non -ice functions. Automatic toxic gas sensors can be incorporated into the system to detect high concentrations of carbon monoxide, carbon dioxide, and nitrogen dioxide. The system would automatically increase ventilation rates to reduce contaminate levels. The unfortunate side effect of properly maintaining humidity levels in the building is that energy costs will likely rise. Replacing the insulation system with the recommended system should greatly reduce the moisture infiltration into the building and help minimize cost increases. We also recommend that the existing dehumidification system be left in place. The system does a great job of using the waste heat of the ice plant to heat the arena. This is a double benefit because arena heat is required nearly year round and if we don't use the waste heat in the building we have to pay to reject to the outside through the existing condenser. The recommended insulating system is Option 4 (spray foam) for the following reasons: • Most economical insulating system that solves the condensation problems • Increases the R-value of the roof system • Provides an integral vapor barrier based on intrinsic characteristics of the spray foam • Increases the acoustical properties of the ice arena, because the thermal barrier also has very good acoustical properties • Most importantly this system can seal the roof ridge and wall to roof intersection; this is always a problem condition in all building structures. • Insulates the wall portion above the concrete block walls, this should help alleviate the moisture on the concrete block wall. It will not completely resolve the moisture in the wall but will help minimize the accumulation of moisture. Cost Estimate RJM and insulation contractors were consulted to provide pricing for the wall and insulation systems, the following chart summarizes the costs associated with these items. RJM provided costs for Options 2 and 4 because the thermal models and integrity of the systems provide the best solution for the condensation problem. Refer to "Attachment D" for RJM's cost estimate of insulating systems. Option 2 Item Cost* Demo and dispose of fiberglass insulation and vapor barrier $42,000 Vapor barrier $28,000 Spray foam and cellulose thermal barrier, walls (above cmu only) $25,000 Polyisocyanurate board insulation $112,000 Metal roofing panels $224,000 763.533.3$13 9100 4 rg�a,,soard M#g O F. . ,Rage 10 29ZDesignGroup minneapolis Low-E Ceiling* $80,000 Sub -total $511,000 10% Estimate, Design, and Construction Contingency $51,100 10% Engineering, Legal, and Administrative Contingency $51,100 Total Option 2 Project Estimate $613,200 *Low E Ceiling is a foil faced radiant barrier that will greatly reduce the radiation from the ceiling where the majority of radiation is generated. The installation of a Low E Ceiling will increase lighting levels because of the reflective nature of the material, and reduce condensation and dripping. Option 4 Item Cost* Demo and dispose of fiberglass insulation and vapor barrier $42,000 Spray foam and cellulose thermal barrier, roof $170,000 Spray foam and cellulose thermal barrier, walls (above cmu only) $25,000 Low-E Ceiling* $80,000 Sub -total $317,000 10% Estimate, Design, and Construction Contingency $31,700 10% Engineering, Legal, and Administrative Contingency $31,700 Total Option 4 Project Estimate $380,400 *Low E Ceiling is a foil faced radiant barrier that will greatly reduce the radiation from the ceiling where the majority of radiation is generated. The installation of a Low E Ceiling will increase lighting levels because of the reflective nature of the material, and reduce condensation and dripping. Total Project Estimate (Insulation and Dehumidification) Item Cost* Option 4 insulating system $380,400 Dehumidification System (includes engineering fees) $165,000 Total Project Estimate $545,000 Conclusion The condensation in the arena needs to be addressed to maintain quality ice and to maintain the integrity of the buildings structure. If it is not addressed significant corrosion to the steel structure will occur over time. Also, when fiberglass insulation is saturated its R-value is significantly decreased making it difficult to maintain steady indoor temperatures. Also, to allow the ice arena to function 763.533.3$13 9100 4rgpa..13oard M#g OF12/13 ,Rage 11 29ZDesignGroup minneapolis through the summer months it will be required to maintain quality ice and indoor air environment. 292 understands that the solutions are expensive but the alternative, of not addressing the issue, will only compound the moisture issues and costs over time. 292 and NRA believe that a phased approach can help alleviate the capital outlay required to correct the problem. We believe you can buy time by incorporating the dehumidification piece first, and then in later years (preferably within 3-5 years) fix the insulation problem. We would recommend that if this approach is taken an allowance of $15,000 be carried to caulk and seal gaps within the structure. This would include weather stripping and caulking at door openings, and roof to wall connections. The arena will still have some moisture in the insulation but a majority of it will be removed prior to forming into dripping water on the ice sheet. There is a potential for some moisture to accumulate on hot humid days. Also, if the insulation gets saturated do to hot humid weather; it should dry out over the winter months with the new dehumidification system running properly. End of Schematic Design Report 763.533.3813 910a 4§ ,�ep2ljpoard M} q g8�12(,1. ,J Ragje Attachment A 292Desig nG rou p minneapolis Consulting Firms: 292 Design Group 9100 49t" Avenue North Minneapolis, MN 55428 P. 763.533.3813 F. 763.367.7601 Tom Betti, AIA tbetti@292designgroup.com Nelson Rudie & Associates 9100 49t" Avenue North Minneapolis, MN 55428 P. 763.367.7600 F. 763.367.7601 Michael D. Woehrle, P.E. Michael.Woehrle@nelsonrudie.com PROJECT OVERVIEW Background St. Michael Albertville Ice Arena (STMA) has a long standing tradition of providing ice -related activities in the northwestern suburbs of the Twin Cities. STMA Ice Arena is home to St. Michael Albertville Youth Hockey Association, St. Michael Albertville High School Teams, and The Riverhawks Hockey Program. The facility also hosts open skating, hockey training and camps, along with a variety of youth and adult hockey events. Purpose The arena ceiling is leaking and it is not known whether the water is from condensation or a leaky roof. 292 and NRA were retained by the City of Albertville to investigate the existing ceiling system and determine the source of the water and to provide some possible solutions to the problem. This is not meant to be a thorough investigation, but to provide some preliminary investigative work to help establish a course of action for STMA. Investigation Methods and Documents Two methods were used to evaluate the existing facility including: Visual Observations: Site visits were conducted on March 20t" and April 3rd, 2013 to observe the facility and its dehumidification system. Interviews: During the on -site visits, discussions were conducted with the facility's staff to document existing issues with the facility and discuss historical problems with its systems. 763.533.3$13 9100 4 r��a,,soard M#g O F. . ,Rage 13 29ZDesignGroup minneapolis Existing Building General The existing ice arena is a pre-engineered steel building structure. The roof system was replaced in 2012 and consists of new exterior light gauge metal roof panels installed over the existing steel purlin and bent frame roof structure. The roof was then insulated with 10" of fiberglass insulation and the insulation is covered with a perforated Low-E ceiling barrier. The following field observations were noted: • The facility is visually in good condition and is very well maintained. • The exterior walls are showing signs of efflorescence, which is typically a sign of moisture migrating into the walls. • The ice rink surface has multiple bumps of ice forming on the surface due to water dripping from the ceiling and then freezing on the ice surface. It should be noted that the bumps are yellowish brown in color and staining the ice surface. • The rink roof seems to drip more when it is humid or misting outside. • During rain events there doesn't seem to be any more "leaks" than when it is humid outside. • According to staff, roof leaks or dripping have been an ongoing problem since the original construction of the ice arena. Ceiling Investigation On April 3rd 292 and NRA performed a visual ceiling investigation which consisted of taking a lift up to the ceiling in 3 different locations. A hole was cut through the Low-E barrier to approximately 12"x12" to access the insulation and the underside of the exterior metal roof panels. The following observations were made: • First location: Located at the west end of the rink towards the center and in line with the hash marks of the face of circles — essentially in the "slot". When the initial cut of the barrier was made, water droplets came running out from the top side of the barrier. The insulation was wet but not completely saturated. The insulation turned from being wet on the arena side to gradually becoming frozen the closer it was in contact with the metal roof panels. A very thin layer of ice was on the underside of the metal roof panel along with condensation, it was a 763.533.3$13 9100 4 r��a,,soard M#g O F. . ,Rage 14 29ZDesignGroup minneapolis mixture of ice and moisture droplets. The insulation was replaced and the barrier taped with aluminum tape. • Second location: Located above the northwest faceoff circle of the rink. When the initial cutting of the vapor barrier was made, no visible water was present. There were some ice crystals on and within the insulation. The ice crystals were more prevalent the closer the insulation was to the underside of the metal roof panels. The insulation when removed had a layer of the insulation frozen to the underside of the metal roof panels. A layer of ice approximately 1/8" to 1/4" thick was on the underside of the metal roof panels. The insulation was replaced and the barrier taped with aluminum tape. Third location: Located above the northeast faceoff circle of the rink. When the initial cutting of the vapor barrier was made, a significant amount of water was present. The water ran from the underside of the Low-E barrier, and the fiberglass insulation had a significant amount of moisture within it. The insulation when removed, had a significant amount of condensation on the underside of the metal roof panels. In this no ice crystals were present it was all moisture droplets. The insulation was replaced and the barrier taped with aluminum tape. Observation Conclusion: What was discovered during this visual investigation was what was expected in an ice arena environment utilizing this type of roof and insulation system. In our professional judgment this is a condensation issue and not a leaky roof system. To eliminate the possibility of a leaky roof system, 292 and NRA recommend that a water test be performed on the roof system this spring to check the water tightness of the roof assembly. The three test locations were purposely selected to provide a good cross section of the roof system that is exposed to different sun and weather exposures. The first location essentially centered on the ridge of the roof; this explains the combination of ice crystals and moisture droplets in this location. There are two issues present at this location. First, the south side of the ridge is exposed to the southern sun and also lacks snow coverage on the roof explaining the reason for more moisture than ice crystals. Second, the north side of the ridge is still covered in snow and does not have the direct southern sun exposure, therefore more ice crystals are present than moisture droplets. The same is true for the two other locations one on the north side of the ridge and one on the south. The north location had more ice than the south location, which had more water droplets. In other words, as the outside temperatures increase, the ice and frost changes to moisture droplets and increases the dripping within the arena. Analysis of Existing Roof System We have sketched a cross section of the existing roofing system and included it as attachment "A". The sketch shows that the existing roof consists of a metal deck, 10" of fiberglass insulation, and a low emissivity ceiling. The low emissivity ceiling is installed tight to the bottom of the existing girts and tight to the bottom of the fiberglass insulation. The total R-Value of the roofing system including inside and outside air films is 31.49. This is a code compliant roof for the building. 763.533.3813 9100 4§ ,�ep2ljpoard M} q g8k12(,1• ,j Ragje 29ZDesignGroup minneapolis Attachment "B" shows the temperature profile through the roofing system using an outside temperature of -20°F and an inside temperature of 402F. The temperature profile through the different components is profile to the R-value of the building component. The sketch shows the following: • Outside air temperature is -20°F (winter design temperature in Minnesota) • Top of deck temperature is -19.68 2F • Bottom of deck temperature is -19.68 2F (R-value of metal deck is negligible) • Top of fiberglass insulation temperature is -19.68 2F • Bottom of fiberglass insulation temperature is 37.48 2F • Arena temperature is 40 2F The only vapor barrier in the roofing system is the metal deck. This means that whatever moisture conditions that exist in the arena, will travel up through the insulation system until they hit the metal deck. Condensation will occur on the bottom of the metal deck whenever the dew point temperature of the air in the arena is lower than bottom surface temperature of the metal deck. Our calculations show that on a -20 2F outside air condition the bottom of the metal deck is -19.68 2F. The dew point of the arena will almost certainly be higher than this and condensation will occur on the bottom surface of the deck. The temperature gradient through the insulation will be linear from the top surface temperature of the insulation to the bottom surface temperature of the insulation. In this example the top surface is at -19.68 and the bottom surface is at 37.48. Since the insulation system does not contain a vapor barrier, moisture will travel up through the insulation until the temperature of the insulation matches the dew point temperature of the air and moisture will be begin to condense somewhere in the middle of the insulation system. This condition was noticed in all three areas we examined. The design dew point temperature of the arena is approximately 35 2F. There are many hours of the year when condensation will occur in the building in the form of both water and ice. We examined several possible remedies for the condensation issue. Attachment "C" shows a section of the roof if we add two layers of rigid insulation on top of the existing metal deck and leave the existing fiberglass insulation system in place. Rigid insulation is preferred because it is a natural vapor barrier and water vapor cannot penetrate into the insulation product and condense inside the insulation system like the previous fiberglass insulation example. The sketch shows that the total R-value of the roof increases to an R-value of 61.49. While this seems great, it will not fix the problem. Using the same outside air condition of -20 2F and an inside arena condition of 402F temperature profiles were again determined through the revised roof system. The following conditions would occur: • Outside air temperature is -20°F • Top of new deck temperature is-19.832F • Bottom of new deck temperature is-19.832F (R-value of metal deck is negligible) • Top of new rigid insulation system is-19.832F • Bottom of new rigid insulation system is 9.42F • Top of existing metal deck is 9.42F • Bottom of existing metal deck is 9.42F (R-value of metal deck is negligible) • Top of existing fiberglass insulation temperature is 9.42F • Bottom of fiberglass insulation temperature is 38.72F • Arena temperature is 40 2F 763.533.3813 9100 4§ ,�ep2ljpoard M�q qp8 12(,1• ,j Ragje 29ZDesignGroup minneapolis This demonstrates that the bottom of the existing would still be at 9.42F even if we add R-30 of new insulation on top of the existing roof. Condensation will continue to be a problem because arena dew point temperatures will nearly always be higher than 9.42F. The third example we sketched was adding the same R-30 rigid insulation system on top of existing roof but removing the existing R-30 fiberglass insulation system and re -installing the low emissivity ceiling, this is shown as attachment "D". The overall R-value of the roof system drops down to 32.49 and the temperature profile through the new roofing becomes as follows: • Outside air temperature is -20°F • Top of new deck temperature is-19.682F • Bottom of new deck temperature is-19.682F (R-value of metal deck is negligible) • Top of new rigid insulation system is-19.682F • Bottom of new rigid insulation system is 35.72F • Top of existing metal deck is 35.72F • Bottom of existing metal deck is 35.72F (R-value of metal deck is negligible) • Bottom of low emissivity ceiling 37.562F • Arena temperature is 40 °F This example shows that 92.7% of the temperature between the inside arena and the outdoors occurs inside the rigid insulation system. The bottom surface of the insulation never drops below 35.71F and condensation should not be a problem. Preliminary Recommendations: Based on this limited investigation, 292 and NRA has established three options that can be considered to help manage, minimize, or potentially eliminate the moisture problem. First, operate as is and utilize extra maintenance to maintain a quality ice rink. The moisture will continue to accumulate especially during the swing seasons and specifically when it is humid outside. The ice bumps can be shaved off and managed, but this requires a significant amount of labor. The benefit to this option is there is capital cost today and the extra labor has been accounted for in the operation of the arena to this point. So essentially it maintains the status quo. The drawback to this option is the structure will eventually start to show signs of stress from the moisture, the purlins and steel structure will start to rust and over time significant damage will result from the excess moisture. Also, because the insulation becomes saturated it loses its insulating properties, and puts more stress on the dehumidification and ice systems. Also, over time the water freezing on the ice surface will become more unsightly as the moisture picks up dyes and dirt from the insulation and steel structure. We have two serious concerns with this approach: 1. The insulation system is likely to be wet for a large portion of the year and is a possible location for mold to grow. The city should consider hiring an environmental specialist to review the existing fiberglass insulation system and confirm that the discoloration is not caused from mold. 2. We also have a concern about the structural capacity of the roof system. We were informed by the arena managers that the roofing company that replaced the roof in 2012 determined that the roof could not support the addition of new insulation and metal roofing on top of the existing roof. Our inspection of the insulation system indicates that that it is holding a 763.533.3$13 9100 4 r��a,,soard M#g O F. . ,Rage 17 29ZDesignGroup minneapolis considerable amount of water and ice. This will add dead load to the roof. We strongly recommend that the metal building manufacturer review the roof structure and determine if they have any concerns with the structural integrity of the existing roof. Second, manage the excess moisture by increasing the dehumidification system in the building. This will help minimize condensation but will not eliminate it. The benefit of this system is it will manage the moisture and help minimize labor costs to maintain the ice sheet. The negative of this approach is it does not eliminate the problem, it manages it. Also, there are significant costs associated with installing and operating dehumidification systems. We would recommend that a desiccant based dehumidification system be added to the facility. The desiccant technology would allow the dew point in the arena to be lowered. It would not be feasible to lower the arena dew point temperature down to the point that condensation would never occur because we need to have dew point temperatures in the arena of -192F on design winter days. This is very uncomfortable and would create poor ice conditions. It would be feasible to drop the arena air dew point low enough that water would evaporate back into the air with minimal dripping on the ice. This approach would require some trial and error to find the optimal arena dew point that minimizes dripping without creating ice problems or uncomfortable conditions in the arena. Third, provide new insulation system for the roof. This would entail a complete retrofit of the existing roof system. The preliminary thought is to re -insulate the roof with a rigid foam insulation system. This could include board insulation over the existing metal roof panels and then installing a new metal roof panel over the insulation. This would also include the removal of the existing fiberglass roof insulation; the Low-E barrier would remain. Another possibility is to apply spray foam to the underside of the existing metal roof panels and reinstall the Low-E barrier. Both of these options will require significant analysis and design detailing to ensure they are designed and installed correctly. The benefit of this approach is it will eliminate the condensation issue and will eliminate the need for additional labor to maintain the ice sheet. Thereby protecting the steel structure and creating a more energy efficient building envelope. The negative to this approach is it is expensive and will take some time to install. Also, the structure will need to be analyzed to see if it can support the additional weight of the new roof and insulation system. Based on the site investigation and preliminary analysis, 292 and NRA would recommend option three as the best solution. But given the unknowns with the structural capacity of the existing roof structure and given the potential cost of this system, 292 and NRA would recommend a more thorough analysis and cost model be developed to help in determining the most appropriate solution for the arena. 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APJ-T b �3 ST, rlplK0-A1.$#p-TV t WAT Tli' uc soap I p toff ADO I-VZ C-4 P 410 1 uSv"lrnoA-j 0VTS1 015 Z¢o.l"l mew msn ft L 6pt" V,! 1,6 LOW - 9 celww'r cuTS t oer �'StrL �1 C�►'►r1 POW m9r117- b dLAC� M MI77-t. 0 SSM4cr hi rL vPPrz-5 Lo w - CmLl94 � NS I re7 Al a- FI B •'s I?VM N1 OF J N S V IL4MOtV co"OrAtsym Mu '5 ULA!1� m Two LAH vrzS tW MC77D IWSVL"C*J Z r 30 � siusn ter- mtr�L calX jNStp�' /rig Flt"I).r..'-;Z TUMP, .ff2ofj tf • -rCf dF gGOF = " pti•lOF1 •VP 'OF le`l'r'n ' 1 0 rxi rh cnw 35.1 OWT11D t NSuL F3o*m e0 Q Olt; I v'r n cr ry STMA Arena Board Mtg 08/12/13 Page 22 JVolo u i ELBE EES M EMS V10SINNIA 'SHOdVINNINN — H16V WIG dh ON9N91SRIZU - m � - c 3 E ao Q C C C Le o,-IL o SNO1103S (INV NV-1d 2i001A O = SUSS NW a111N,a41d r 3N ....AV u q-1 S689 VN3HV 301 3ll1AIM991V-13VH31W 1S :g p o _ - Attachment C Judd Allen August 8, 2013 G R D U P Braemar Office Park MEMORANDUM 8000 West78th Street St. Michael Albertville Ice Arena Suite180 Edina, MN 55439 To: Tom Betti office: 952.224.5050 Cc: David Pederson, JAG fax: 952.224.5059 Aaron Ludvigson, JAG From: Judd Peterson, Judd Allen Group www.juddaIIen.com Re: Thermal Study of Roof Assembly Judd Allen Group was asked to provide analysis of the thermal characteristics of the existing ice arena roof as well as 4 alternatives for eliminating ongoing ceiling condensation problems. Each alternative was simulated for both summer and winter conditions. The existing assembly consists of R- 30 batt insulation between 10" steel Girts and a steel roof at the exterior. Using interior and exterior design temperatures of 50 degrees and -20 degrees respectively for winter conditions, and 96 degrees exterior for summer conditions, thermal analysis confirms that condensation occurs within the insulation and possibly at the girt framing locations under normal winter conditions where the interior dew point is at 33 degrees F at 50% relative humidity. In order to eliminate the problem, the use of an effective interior (warm side of insulation) vapor barrier must be provided or closed cell foam insulation must be provided in sufficient thickness to put the dew point within the insulation layer and place the temperature of the interior girt above the dew point. The four assembly alternatives to eliminate this condition are: In all cases the winter condition governs. Option 1 Provide a new steel roof above a continuous R-30 closed cell insulation layer over the existing roof. This results in an excellent temperature at the interior surface and sets the dew point within the closed cell insulation layer. The only negative issue is the cost of providing a new roof. Option 2 This option is an identical assembly to Option 1 with the exception of a new vapor barrier over the existing roof. Again, the thermal performance is excellent. The vapor barrier does not add meaningful performance and is not required for vapor control since the dew point is located within the insulation layer where it cannot cause condensation. The expense of the new roof seems to be a large negative for this option. Option 3 This option is similar to the previous options but retains the R-30 batt insulation within the girt framing. This option fails because the batt insulation brings the dew point inboard of the closed cell insulation and puts within the batt insulation causing condensation to occur there. Since batt insulation is open cell, moisture will condense and cause problems within the framing space. STMA Arena Board Mtg 08/12/13 Page 24 Thermal Analysis St. Michael Albertville Ice Arena Option 4 Option 4 consists of new R-20 closed cell spray foam insulation located directly beneath the existing steel roof. It appears that R-20 insulation is borderline effective against condensation on the girts and perhaps even on the insulation surface. Another inch of foam would most likely remove any risk of condensation. We feel this is the best option since it doesn't add the expense of a new roof and all work can be done from the inside. Respectfully, Judd Peterson, AIA Judd Allen Group STMA Arena Board Mtg 08/12/13 Page 25 Judd Allen G R O U P 292 Design Group St. Michael Albertville Ice Arena Existing - Summer Conditions Temperatures 91.87T 150.81 T to 95.78T) 95.00°F 90.00°F 85.00°F 80.00°F 75.00°F 70.00°F 65.00°F 60.00°F 55.00°F 50.00°F Temperatures Exterior 960 F Interior 500 F Relative Dew Humidity Point 50% 330 F cn A Area gSar fftg 08/12/13 Page 26 Braemar Office Park — 8000 West 78 Street —Suite 180 — ina, iViiv 4 Judd Allen G R O U P 292 Design Group St. Michael Albertville Ice Arena Existing - Winter Conditions Temperatures 23.38°F 1-19.66°F to 48.76°F] 50.00°F 40.00°F 30.00°F 20.00°F 10.00°F 0.0U°F -10.00°F -20.00°F Temperatures Exterior -200 F Interior 500 F Relative Dew Humidity Point 50% 330 F cn A Area gSar fftg 08/12/13 Page 27 Braemar Office Park — 8000 West 78 Street —Suite 180 — ina, iViiv 4 Judd Allen G R O U P 292 Design Group St. Michael Albertville Ice Arena Option 1 -Summer Conditions T emperakures C �y y 93.967 �y (50.8 1 T o 95.76T) 95.00T 90.00"F 85.00°F 80.00°F 75.00°F 70.00°F 65.00°F 60.00°F 55.00°F 50.00°F Temperatures Exterior 960 F Interior 500 F Relative Dew Humidity Point 50% 330 F cn A Area gSar fftg 08/12/13 Page 28 Braemar Office Park — 8000 West 78 Street —Suite 180 — ina, iViiv 4 Judd Allen G R O U P 292 Design Group St. Michael Albertville Ice Arena Option 1 - Winter Conditions Temperatures 46.00T 1-19.6YF to 48.77T) 50.UOF 40.00°F 30.00°F 20.00°F 10.00°F 0.00"F -10.00°F -20.00°F Temperatures Exterior -200 F Interior 500 F Relative Dew Humidity Point 50% 330 F cn A Area gSar fftg 08/12/13 Page 29 Braemar Office Park — 8000 West 78 Street —Suite 180 — ina, iViiv 4 Judd Allen G R O U P 292 Design Group St. Michael Albertville Ice Arena Option 2 - Summer Conditions Temperatures 92.70°F [50.82°F to 95.75°F] 95.00°F 90.00°F 85.00°F 80.00°F 75.00°F 70.00°F 65.00°F 60.00°F 55.00°F 50.00°F Temperatures Exterior 960 F Interior 500 F Relative Dew Hurniclity Point 50% 330 F cn A Area gSar fftg 08/12/13 Page 30 Braemar Office Park — 8000 West 78 Street —Suite 180 — ina, iViiv 4 Judd Allen G R O U P 292 Design Group St. Michael Albertville Ice Arena Option 2 - Winter Conditions Temperatures 45.79°F [-19.62T to 48.76T) D U.VVF 40.00T 30.00T 20.00"F 10.00"F 0.00"F -10.00"F -20.00"F Temperatures Exterior -200 F Interior 500 F Relative Dew Hurniclity Point 50% 330 F cn A Area gSar fftg 08/12/13 Page 31 Braemar Office Park — 8000 West 78 Street —Suite 180 — ina, iViiv 4 Judd Allen G R O U P 292 Design Group St. Michael Albertville Ice Arena Option 3 - Summer Conditions Temperatures 91.66°F [50.2TF t0 95.82°F] 95.00"F 90.00"F 85.00"F 80.00"F 75.00"F 70.00"F 65.00"F 60.00"F 55.00"F 50.00"F Temperatures Exterior 960 F Interior 500 F Relative Dew Hurniclity Point 50% 330 F cn A Area gSar fftg 08/12/13 Page 32 Braemar Office Park — 8000 West 78 Street —Suite 180 — ina, iViiv 4 Judd Allen G R O U P 292 Design Group St. Michael Albertville Ice Arena Option 3 - Winter Conditions Temperakures 31.9E°F 1-19.73°F to 49.65°FJ 50.00°F Temperatures Exterior -200 F Interior 500 F Relative Dew Humidity Point 50% 330 F cn A Area gSar fftg 08/12/13 Page 33 Braemar Office Park — 8000 West 78 Street —Suite 180 — ina, iViiv 4 Judd Allen G R O U P 292 Design Group St. Michael Albertville Ice Arena Option 4 - Summer Conditions 1; Temperatures 91.64°F 151.08°F to 95.7TF] 95.00°F 90.00°F 85.00°F 80.00°F 75.00°F 70.00°F 65.00°F 60.00°F 55.00°F 50.00°F Temperatures Exterior 960 F Interior 500 F Relative Dew Humidity Point 50% 330 F cn A Area gSar fftg 08/12/13 Page 34 Braemar Office Park — 8000 West 78 Street —Suite 180 — ina, iViiv 4 Judd Allen G R O U P 292 Design Group St. Michael Albertville Ice Arena Option 4 - Winter Conditions T emperakures 16.31 T [-19.5SIT to 48.35°F] 50.00F 40.00T 30.00T 20.00T 10.00T 0.00T -10.00T -20.00T Temperatures Exterior -200 F Interior 500 F Relative Dew Humidity Point 50% 330 F cn A Area gSar fftg 08/12/13 Page 35 Braemar Office Park — 8000 West 78 Street —Suite 180 — ina, iViiv 4 VP CONSTRUCTION August 2, 2013 Mr. Tom Betti 292 Design Group 3533 East Lake Street Minneapolis, MN Re: STMA Ice Arena Dear Tom, 0 MINNEAPOLIS / PHOENIX / DENVER It is our understanding that the St. Michael/Albertville Ice Arena is experiencing condensation issues specifically caused by the roof and insulation design. It has been explained to R3M that the existing building is a pre-engineered metal type building and is approximately 28,000 SF. The existing roof is pitched at a 2/12 slope and there is fiberglass insulation installed on the underside of the roof system. The fiberglass insulation has a perforated foil faced vapor barrier installed on the inside face of the insulation. After hearing your description of the problems, we agree with your assessment that there are two issues that must be addressed in an effort to remedy the issue. The two issues are deficiencies in the dehumidification and insulation systems. Below we have provided cost estimates for two different insulating systems that would solve the insulation problems. We did not estimate the dehumidification system because Nelson-Rudie and Associates will be providing a cost estimate for the dehumidification upgrades. Option A: Remove fiberglass insulation, spray foam underside of existing roof structure, and install a 1-1/4" cellulose protective barrier at the exposed foam to provide a fire barrier. Estimated costs: Demo and dispose of fiberglass $42,000 Spray foam and cellulose thermal barrier, roof $170,000 • Spray foam and cellulose thermal barrier, walls $25,000 (metal stud walls above cmu only) Total estimated cost for Option A: $237,000 Option B: Remove fiberglass insulation, install vapor barrier and 2 layers of 5" total polyisocya n u rate over existing metal roof, install ice and water shield and metal roofing. This option will require extensive roof edge and peak flashing to enclose the insulation section. •1r111I1L 0 TMA Arena Board Mtg 08/12/13 Page Estimated costs: Demo and dispose of fiberglass $42,000 Vapor barrier $28,000 Polyisocyanurate $112,000 Spray foam and cellulose thermal barrier, walls $25,000 (metal stud walls above cmu only) Metal roofing $224,000 Total estimated cost for option B: $431,000 The intent of this estimate is to provide a rough order of magnitude and provide some support to pursue one of the two options. We would be happy to work with you to further validate the scope of work and budget pricing as the design progresses. We hope that you find this information helpful. Please let us know if you have any questions or need any further information. Ted Beckman R3M Construction STMA Arena Board Mtg 08/12/13 Page 37 EISE EES E91 M55 ViOUNNIVI 'SINWNNIN N 3AV H6V OM dn0s9m9153azu aI ; . LLI M% )ISO Cl Z 6 Zm �_ eij .-1 0 133HS 103rOUd WC99 NA 011PAIJOW JN OnUeAV UEWqD? 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