Structural Insulated Panels (SIPs)
Build Faster. Save More. Live Better.
Petra’s Structural Insulated Panels (SIPs) deliver airtight, high-performance building envelopes that dramatically reduce build times and energy consumption. Whether you’re constructing a home, cottage, addition, or commercial project, SIPs provide an efficient alternative to traditional framing—with fewer trades, less waste, and superior thermal performance.
Why Choose SIPs?
Fast, Accurate Installation
Factory-cut for your layout, including window and door openings, SIPs arrive jobsite-ready to reduce errors and speed up assembly.
Exceptional Energy Efficiency
Continuous insulation and minimal thermal bridging deliver up to 50% better performance than conventional construction.
Superior Airtightness & Comfort
Creates a sealed envelope that reduces drafts, moisture issues, and airborne contaminants.
Net-Zero & Passive House
Meet high-performance building codes and sustainability goals with ease.
Build Year-Round
SIPs install quickly in any season—cutting weather delays and keeping projects on track.
A Better Way to Build, from Frame to Finish
Unlike stick framing, SIPs combine structure and insulation into one high-performance panel. This simplifies construction while delivering better thermal comfort, tighter air sealing, and long-term durability. Whether you’re managing your own build or working with contractors, SIPs help reduce complexity and deliver results that align with modern building standards. Plus, they support LEED, Passive House, and Net-Zero certifications—all while saving time and money on-site.
Explore Our SIP Products
Petra offers precision-engineered SIP solutions for both wall and roof applications. Each panel is factory-cut, labeled, and delivered ready to install—minimizing delays and maximizing performance.
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.
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Structural Insulated Roof Panels (SIP Roofs)
Precut SIP Roof Panels, reduce the margin of error, facilitate labor and offer a higher insulation value than conventional roofs.
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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 SIPs compare to conventional framing?
They’re significantly faster to install than traditional stick framing, with fewer thermal breaks and much greater airtightness. This translates into higher energy efficiency, reduced labor costs, and a tighter, more comfortable building envelope.
Can panels be cut for custom openings?
Yes, SIPs are custom-cut at the factory to accommodate your window and door openings. This ensures precision, reduces onsite waste, and speeds up installation.
Are SIPs structurally sound?
Absolutely. The structural integrity comes from the composite action between the OSB skins and foam core, acting like an I-beam. This makes SIPs strong enough for load-bearing walls and roofs in both residential and commercial projects.
Can I use SIPs for a Passive House?
Definitely. SIPs’ airtightness and high R-values make them an excellent choice for Passive House or Net-Zero builds. They help meet strict energy performance standards with less complexity than traditional assemblies.
Will I need a smaller HVAC system?
Yes, most SIP buildings require significantly smaller heating and cooling systems. The improved insulation and airtight envelope reduce the overall heating and cooling load, lowering energy bills and HVAC equipment costs.