Finding windows and doors that truly reduce energy loss and provide long-term durability can be a challenge for homeowners, builders, and architects. Standard products often allow heat to escape, increase energy costs, and require frequent maintenance. Fibertec addresses this need with its Passive House windows: the 300 Series Fixed, Awning, and Casement Windows, along with the 750 Series Sliding Patio Door, are now officially certified by Phius. This certification confirms that these products meet strict performance standards for energy efficiency, airtightness, and durability in North America.
Why Passive House Windows Matter
Passive House windows are designed to minimize heat transfer and maximize insulation. Phius certification ensures that the products meet stringent requirements for airtightness, thermal performance, and long-term durability. For builders and architects, these windows make it easier to design homes and buildings that meet Passive House or Net Zero energy standards. Homeowners benefit from reduced energy costs and improved comfort inside their living spaces.
Fibertec Certified Products
Check out Fibertec’s Phius-certified offerings:
- 300 Series Fixed Windows
- 300 Series Awning Windows
- 300 Series Casement Windows
- 750 Series Sliding Patio Door
These Passive House windows feature triple-pane glass and fiberglass frames engineered to resist weather and temperature changes. They have undergone rigorous UL and NFRC testing for air leakage, water penetration, and structural integrity. With U-values as low as 0.12, these windows and doors provide superior insulation and comfort.
The Benefits of Fiberglass Frames
Fiberglass offers performance advantages that make it ideal for Passive House windows:
- Low thermal conductivity keeps heat inside during winter and outside during summer.
- Strong, durable frames resist warping, cracking, and UV damage.
- Smooth operation and high strength allow for larger or uniquely shaped windows.
- Low maintenance, as fiberglass does not rot, rust, or degrade easily.
These qualities ensure that Fibertec windows perform well over time, while giving designers the flexibility to create custom solutions for residential or commercial projects.
Advantages for Architects, Builders, and Homeowners
Fibertec’s Passive House windows provide benefits tailored to each audience:
- Architects: Confidence that their designs meet Passive House energy and airtightness standards.
- Builders: Durable frames reduce the risk of installation issues and minimize hardware stress.
- Homeowners: Lower heating and cooling costs and year-round indoor comfort.
These windows also align with sustainable building practices, including LEED and Net Zero energy projects, supporting environmentally conscious construction goals.
Using Passive House Windows in Projects
Fibertec products are listed in the Phius Product Database, making it easy for specifiers to select the correct Passive House windows for any project. They are suitable for:
- Energy-efficient residential homes
- Net Zero Energy buildings
- Commercial or custom projects requiring reliable, high-performance fenestration
Listing in the Phius database provides measurable proof that these products perform to the required standards, helping projects stay on track for energy and sustainability goals.
Fibertec’s Commitment to Sustainability
Earning Phius certification reflects Fibertec’s focus on energy efficiency and long-term performance. The company combines advanced fiberglass technology with practical design, giving architects, builders, and homeowners products they can trust. Fibertec also provides technical support and guidance to help designers specify the right windows for their projects, ensuring performance is maintained from design to installation.
Conclusion
Fibertec’s Passive House windows demonstrate the company’s dedication to high-performance, energy-efficient design. With multiple window types and a sliding patio door now certified, architects, builders, and homeowners can confidently choose Fibertec products for projects that require proven performance. The Phius Product Database listing makes it simple to find certified windows, helping to create buildings that save energy, provide comfort, and last for years.
