Building smarter, faster, and more sustainable

Welcome to Preflex, the intersection of sustainability and efficiency in modern construction. Our ICC-certified Structural Insulated Panels (SIPs) are at the forefront of green building technology. Preflex's innovative panelized building systems offer more than just superior insulation and structural integrity; they're a testament to our commitment to environmental stewardship and value engineering. By integrating energy-saving features and state-of-the-art fabrication processes, our SIPs ensure faster build times, no waste, cost-effective solutions, and robust structures that stand the test of time. Explore Preflex SIPS today and join the revolution in sustainable construction that's redefining quality and performance.

What people are saying

"The SIPs are great to work with. We saved substantially on the labor cost. We're saving 18 - 30% in overall framing costs."

- Kelly Klute

"It's been a great experience working with the Preflex team."

-Terrell Martin

"We got this up in 5 days. It is nicely insulated, it has more R-Value than the average ADU."

-Andrew Ignacio

"Low-Cost, Energy-Efficient, Sustainable Buildings – Made Easier."

Preflex Services

Select from our energy-positive pre-designed floor plans or collaborate with our partner drafting team to develop a custom design tailored to your specifications.

Architectural Design

Preflex will transform your building into a panelized system by creating detailed shop drawings and coordinating with our Licensed Professional Engineer (PE) to perform the necessary structural calculations and stamp the approved drawings.

Structural Engineering

Leveraging Building Information Modeling (BIM) technologies, we precisely manufacture SIPS with laser-precise equipment within our CA FBH (Factory Built Housing) Certified facility.

SIP Manufacturing

Preflex will deliver and install your SIP package using our CA licensed partner framing crew, ensuring precise alignment with all framing requirements, leaving the structure prepared for subsequent specialized trade work.

Framing Installation

Structure

Thermal
Isolation

Interior & Exterior Sheathing

Electrical
Conduits

Structural Insulated Panels

Preflex SIPs are a revolutionary building system that consists of a solid core of expanded polystyrene (EPS) structurally laminated to 2 oriented strand board (OSB) skins.

The panels include framing, insulation, wire conduits, and sheathing in a single component; it's considered one of the most energy-efficient building systems on the market.

Preflex Panels are manufactured to the highest standards and are Code Compliant with Building Residential codes at the US Federal and California State levels for use as load bearing Walls, Roofs and Floors

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Applications

Walls

Roofs

Floors

Retro-Fit

Preflex SIPs are engineered for versatile application in walls, roofs, and floors, providing high R-Value and a hermetically sealed structure from floor to ceiling for optimal energy efficiency. Additionally, our Retro-Fit SIPs can be seamlessly integrated into existing structures, enhancing energy efficiency through innovative adaptation.

Residential

Multifamily

ADU

Commercial

Preflex SIPs are meticulously engineered for a wide range of applications, including Residential, Multifamily, Accessory Dwelling Units (ADUs), and Commercial building projects. Utilizing advanced fabrication techniques these SIPs offer a tailored, versatile solution to meet specific structural requirements across various construction domains while resulting in a Net Zero ready high performance building.