We are passionate about building a better future!

Experts all over North America have declared that structural insulated panels (SIPs) are the future for high performance construction. We have been manufacturing SIPs for nearly 30 years. With this experience, and hundreds of SIP framed structures standing strong, we at Extreme are proud to help light the way!

SIPs Simply Outperform Sticks!

Build tight and ventilate right, that is the key difference in how SIPs outperform stick framed construction. When compared to buildings framed with dimensional lumber, Extreme’s large SIPs cover greater surfaces with far less gaps in the walls and roofs to be filled and sealed. These large panels offer owners better indoor quality, reduced infiltration of outside pollutants, smaller HVAC systems, and a superior indoor temperature control. As a result, Extreme buildings stay cooler in the summer and warmer in the winter. Extreme’s SIPs have consistently outperformed other building methods of construction in both whole wall R-value comparison and energy efficiency. The best data we have are the happy customers that report the dramatic results of less energy used every month. Contact us for test data to back up the actual findings of our many satisfied customers.

How do SIP Walls fit into a building’s framing structure? A Extreme’s SIP walls replace stud and batt insulation construction, creating a structural, extremely energy-efficient building envelope. SIP walls have a continuous wood surface that is crucial for a solid nail-base for both exterior and interior finishes. Interior finishes such as cabinetry, moldings, flooring, and more can be installed much easier on SIP walls than stud walls due to the continuous attachment surface. This allows for greater design flexibility for cabinet makers and finish carpenters since they are no longer constrained to expansions ending with studs.
Just Like a Puzzle… Basic Wall Installation Procedure

  • Always begin at a corner
  • Place the first panel over the bottom plate and flush to the exterior edge of the building
  • While holding panel approximately plumb, in and out on the face, plumb the outside panel exactly vertical and nail off both sides (it will stand up easily by itself at this time)
  • After placing the proper sealant on the seams, situate the panel on the other side of the corner over its bottom plate, tight against the first panel, and nail off (at this time, the two panels are not attached to each other)
  • Align and attach the panels at the corner
  • One panel will run long and the other panel will butt up against the previous one
  • The panels are then attached with “Big SIP Screws” through the longer panel (just inside the dimensional lumber placed in the corner) and into the dimensional lumber in the second panel
  • The big SIP screws are placed approximately 3″ from the top and bottom of the wall and then at a maximum of 2 ft on center, or per the engineered detail drawings for that particular job

Want to learn more about Extreme’s SIP walls? Visit our technical library or contact us. We’d love to help you with your next project!