Why OSI
OSI takes the best practices from years of experience in new-home construction and brings that expertise to replacement windows. WINTeQ™ Window Installation System is the cornerstone, a completely compatible line of products that remove the guesswork from replacement window installation.
The First Complete & Compatible Window Installation System
WINTeQ™ Products for Replacement Windows
Preparing the job site for replacement windows is much more intensive than new construction. Utilizing the OSI® WINTeQ™ system installation method for this helps make this job easier. Our brochure has flashing lengths and cut formulas for your convenience, plus a final inspection checklist.
The brochure provides guidelines for three principal areas:
- Replacing window from the interior side using a block frame window
- Replacing window from the exterior side using a block frame window
- Replacing window from exterior side using a nailing flange replacement window
OSI has also added information on QUAD® Advanced Formula Sealant or H2U Acrylic Urethane Sealant as the final touch to sealing the windows.
