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Energy Efficient Building Envelope

(structural insulated panels)

Timber Masters provides energy and building efficient wall and roof panel systems.  Structural Insulated Panels  (SIPs) are high-performance panels made by sandwiching a core of rigid foam plastic insulation (EPS) between structural skins of various types, most common of which is oriented strand board (OSB) or plywood.

Because they are factory-made, SIPs can be custom-designed to the needs of each project.


For additional protection, panels can be upgraded to MGO panels, giving more weather resistance, mold & mildew resistance, and up to a four hour fire rating. These panels are ideal for back-country cabins and other structures that can be threatened by wildfires, high moisture locations, or areas with more extreme weather.

Advantages of SIPs include:

  • SIPs cuts overall construction time of project because of pre-fabrication assemblies.

  • Weather-tight and security-locked within days.

  • Factory precut panels cuts down wastage.

  • SIPs are stronger than standard framed walls and roof truss systems.

  • Buildings built with SIP framing are more energy efficient than stick-built homes.

  • HVAC system is smaller than non-SIP homes.

  • Trim and cabinet installation easier because of the straight walls.

  • Mold and mildew resistant.

  • Electrical chases are pre-cut at factory.

  • A friendly product for the do-it-yourselfer

  • Strong fire protection and ability to prevent fire spread (no air cavities).


Ease of Construction

  • When skilled labor is at a premium, SIPs allow experienced or inexperienced crews to put up building envelopes quickly, shaving days off building enclosure schedules.

  • Training and consultation is provided for first time installers.

  • Detailed project installation details are provided.


Faster Construction:

  • SIPS are ready to install when they arrive at the job site, eliminating the need to perform the individual operations of framing, sheathing, and insulating stick-framed walls. This saves builders significant amount of on-site labor.

  • Add more projects to scheduled builds.

  • The fully insulated SIP enclosure makes winter finishing quicker.

  • A shorter building cycle of the structure translates to lower loan cost overhead.


Building Code Compliant

  • Unless municipality requests, SIP CCMC approved wall panels do not require engineering for 6 1/2” walls up to 10’ high.

  • 6 1/2” SIP wall exceeds recent Alberta and BC building code 9.36 energy code requirements.


Energy Efficient Building

  • The insulating core of a SIP provides high density continuous insulation. Excess RSI allows for trade off in building design.

  • SIPs are up to 15 times more airtight and when combined with other energy efficient technology are 50% more energy efficient than stick building.

  • SIP houses are frequently measured at 0.2 air changes.

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