Architectural Stairways wood composite core (veneer wrapped) sidelight, borrowed light, and transom assembly for installation in 20 through 90 minute locations. The frame for sidelights, borrowed lights, and transom assemblies may be installed in walls constructed of gypsum with steel or wood studs or concrete/masonry wall openings.
Wall Construction
Gypsum with wood studs
Rough opening must be bucked with 3/4” thick (minimum) plywood/wood.
Gypsum with metal studs
Concrete or Masonry
Limitations
| Configuration |
Maximum Size |
| Borrowed Light, Sidelight, and Transom (Frame) |
44”/110” wide by 110”/44” tall |
| Clear View of Borrowed Light, Sidelight, and Transom |
34”/100” wide by 100”/34” tall (3,400 in2) |
| Arched Top Lights (Frame) |
86” wide by 44” tall (highest point of radius) |
| Clear View of Arched Top Lights |
76” wide by 34” tall (highest point of radius) |
| Minimum Jamb Depth |
4 1/2” |
| Minimum Frame Thickness |
1” |
| Maximum Gap Between Frame and Rough Opening |
1/4” |
Temperature rise applications requires the use of listed fire resistance rated glazing.
Evaluated to the following:
Unless otherwise noted, the product listed above in this section has been evaluated for conformance to the following standards:
- UL 10C – Positive Pressure Fire Test of Door Assemblies
- NFPA 252 – Fire Test of Door Assemblies
- CAN/ULC S104 – Standard Method for Fire Test of Door Assemblies
and are installed, unless otherwise noted, in accordance with the following:
NFPA-80, Standard for Fire Doors and Other Opening Protectives.
Manufacturer's Instructions.
Listed maximum sizes of lights are based on sizes tested and may exceed local code requirements.
All frames are identified by either a label or embossed marking bearing the wording "Listed (Product)" and the WHI Certification Mark. Frames rated for less than 3 hours also bear the time interval. Frame labels that do not include a time interval are rated for 3 hours.
