uPVC on the outside. A steel core inside every frame and sash. Tested for wind, water and air, with the report number beside each result.
Vi6 casement. Intertek report S3614.03-525-44. AW is the highest of the four performance classes.
The red core in the cutaway is steel. It runs through the frame and the sash, and it is what lets a uPVC window carry a class written for commercial buildings.
A class only applies to the type and the size that was tested. So here is each type on its own line, with the Intertek report behind it.
| Type | Class | Water |
|---|---|---|
| Vi6 casementIntertek S3614.03-525-44 | AW-PG100 | 15.04 psf |
| Vi6 fixedIntertek S3615.01-525-44 | AW-PG75 | 15.04 psf |
| Vi5 fixedIntertek L4554.02-250-44 | AW-PG70 | 12.11 psf |
| Vi6 hopperIntertek K5829.01-109-44 | CW-PG65 | 12.11 psf |
| Vi6 terrace door, in-swingIntertek J8727.01-109-44 | CW-PG65 | 12.11 psf |
| Vi5 casementIntertek L4554.01-250-44 | CW-PG50 | 7.52 psf |
| Sliding doorIntertek R8672.01-525-44 | CW-PG50 | 7.52 psf |
| Vi5 terrace door, in-swingIntertek P0197.01-109-44 | CW-PG45 | 9.82 psf |
| Vi6 terrace door, out-swingIntertek K2747.01-109-44 | CW-PG30 | 4.59 psf |
Sixteen stories of student housing, where the code asks a window to stand up to a stronger wind than New York's. The Vi6 windows were engineered to it, and at the corners of the facade, where the wind pulls hardest, they carry a wider mullion.
See the project ›Send the structural notes with your plans. We check every opening against them.
An AI assistant. It answers from our certified numbers and can still make mistakes. 929-668-2340 · plans@vistaza.com · Privacy