HVAC Sizing
Since SIPs are so energy efficient, the correct sizing of you HVAC is a crucial step in the building process. Sizing requirements used in traditional construction must be modified to meet the superior standards of SIPs. This often means the size of your HVAC operating system can be substantially reduced, ultimately saving you money. The incorporation of an air to air exchange is required for all SIP structures. Whether you choose your own HVAC installer, or you work with ours, we will assist in determining the correct HVAC system for energy efficient structure.

What Our Customers Have To Say
Extreme Structures LLC was the company we hired to do a 1200 sq. ft. addition on our home in Milwaukee. They truly were experts in their field. We found them to be, dependable, conscientious, with superior attention for detail, and extremely easy to work with. After our initial experience, there was never a second thought as to who would build our dream home in Denmark. Our new home is everything we hoped for and more!
-Fred and Barb
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Featured Projects
Extreme Structures is proud to be the designer and builder for the new exhibit building for the Rogers Street Fishing Village located in Two Rivers, WI. The new building will be constructed with a timber frame and structural insulated panels. Construction is currently underway and expected to be completed this Fall.




