Structural Insulated Roof Panels
(SIP Roofs)
Stronger Roofs. Faster Installs. Warmer Interiors.
Petra’s SIP roof panels combine structure and insulation into one high-performance system. Pre-cut to your slope and spanning up to 24 feet, they simplify installation, eliminate trusses, and deliver exceptional energy efficiency.
Why Choose SIP Roof Panels?
Pre-Cut Precision
Every panel is cut in a controlled factory setting based on your plans, eliminating onsite guesswork and ensuring accurate fits from the first panel to the last.
Faster Installation
Panels arrive ready to install—reducing labor needs, cutting down on build time, and allowing you to frame walls in hours instead of days.
Thermal Performance Built In
With continuous insulation and virtually no thermal bridging, SIP walls provide superior airtightness and help eliminate cold spots and condensation.
Custom R-Values & Sheathing
Choose from a range of panel thicknesses and sheathing types to meet your project’s structural and thermal requirements.
Designed for Efficiency
Ideal for Passive House, Net-Zero, and LEED projects—SIP walls help future-proof your build while cutting operating costs long-term.
A Smart Roofing Solution for Performance Builds
SIP roof panels streamline construction while helping you meet strict energy codes and performance targets. Whether you’re working on a residential or light commercial structure, Petra’s SIP roofs offer a clean, high-insulation roofing envelope with fewer trades and fewer steps.
See SIP Roof Panels in Action
From sleek modern cabins to Passive House builds, Petra’s roof panels have been used across a wide range of climates and roof designs. Scroll through real-world installs to see how our system adapts to your vision and performs in the field.
Panel Dimensions & Performance
Width
4ft , 8ft
Span:
up to 24ft
R-Value/in:
3,75 – 4
Standard Thickness Options
Thickness:
R-Value:
10.5″
40
13″
51
Need a custom fit?
The sizes listed above are our most common configurations, but we can accommodate unique project needs. Other thicknesses are available—just give us a call to discuss what works best for your build.
Call +1 (888) 969-2689Complete the Envelope
Pair SIP roof panels with Petra’s Structural Insulated Wall Panels to complete your high-performance shell. Fewer components. Fewer trades. Better results.
Structural Insulated Wall Panels (SIP Walls)
Pre-cut SIP wall panels deliver ease of installation, efficient insulation, and structural longevity – Ideal for new construction and extensions.
Discover MoreLet’s Talk About Your Project
From early planning to last-mile details, our experts are here to help you build smarter. Let’s find the right solution for your home or commercial project.
FAQs
Got questions? We’ve answered the most common ones below. If you need specs, pricing, or technical support tailored to your project, reach out to us and we’ll get you the details you need.
How do SIP roof panels reduce framing time?
With long spans and pre-cut angles, SIP roof panels eliminate the need for trusses and rafters. Crews can dry-in the building faster and move to interior work sooner.
Can SIP roofs support snow loads in Canada?
Yes. Panels are engineered to meet or exceed regional snow load requirements in Ontario, Quebec, and other northern climates.
Can I customize pitch or overhangs?
Absolutely. Panels are cut at the factory to match your slope and layout. Just send your drawings or dimensions.
How do they perform in terms of insulation?
SIP roof panels deliver consistent, high R-values with minimal thermal bridging. They help reduce ice damming and improve interior comfort year-round.
Are SIP roof panels compatible with standard finishes?
Yes. They can be finished with asphalt shingles, metal roofing, standing seam, or other conventional roofing materials.