9302 Idaho Street
Duluth, MN 55811
Max Gray Construction, Inc.
Hibbing, MN 55746
Email Address: jabrahamson@ maxgrayconstruction.com
Commercial/Industrial/Institutional Buildings over 10,000 sq. ft.
Thunderbird / Wren Halfway House
Duluth, MN 55811
Dimensions of building (all floors of multi-story building):
72 x 32, 98 x 40, 72 x 32, 54 x 55 – first floor
72 x 32, 98 x 40, 72 x 32 – second floor
Total sq. ft. of conditioned space:
20,000 sq. ft.
Panels Manufactured By: Company Name (members only):
Energy Panel Structures (EPS)
Designed By (if different than applicant - SIPA will only recognize members)
2 West First St.
Duluth, MN 55802
Describe the end use of the building:
40 bed treatment facility to help people affected by chemical dependency and alcoholism.
How did SIP construction help you get this job?
With Winter build, having panels built in controlled environment helped greatly in construction and construction costs.
SIP wall thickness and core material:
6” EPS panels
SIP roof thickness and core material:
12” EPS panels (Entry vestibule roof only).
Describe the benefits of using SIPs on this project. Did SIPs help save time, labor, construction costs, or energy?
Durability with the efficiency of the SIP panels were the main reasons, factory-controlled environment made Winter construction simpler.
Describe the HVAC system used on the project:
Two-stage gas-fired furnaces with 96.0% AFUE Rating.
Describe any other energy-saving materials used in the building envelope other than SIPs. List U-values of windows used and the U or R-value of any insulation materials. (judged only for High Performance Category)
Thermo-Tech windows – U-Factor 0.27
CertainTeed fiber glass attic insulation – R-60
Please list any energy-efficient products or design features, such as lighting, hot water heating, appliances, passive solar (judged only for High Performance Category:
LED light fixtures installed throughout the building.
Please list any sustainable materials or design features not listed above, such as recycled materials, low-VOC finishes, landscaping, etc. (judged only for High Performance Category):
Low VOC paints
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