HW UL Listings
Willseal | UL Classified Fire Rated SystemsHead of Wall
**Click on the UL listing name for further information in a PDF format**
| UL ListingSealant Name | Fire Rating(Hours) | Nominal Joint Width(inches) | Foam Depth(inches) | Movement | Substrate | |
| Min | Max | |||||
| HW-D-0700 – conf. AFR joint, FR joint UC | 3 | 1/2 in. | 1-7/8 in. | 3 or 4 in. | ± 50% | Concrete |
| HW-D-0700 – conf. BFR joint UC | 3 | 1/2 in. | 1-7/8 in. | 3 or 4 in.(4 in. foam required for 3 hour rating) | ± 50% | Concrete |
| HW-D-1101 – conf. AFR joint, FR joint UC | 3 | 2 in. | 3-3/8 in. | 4 in. | ± 50% (2 in. to 3 in.)+ 25% / – 50% (2 in. to 3-3/8 in.) | Concrete |
| HW-D-1101 – conf. BFR joint UC | 3 | 2 in. | 3-3/8 in. | 3 or 4 in. | ± 50% (2 in. to 3 in.)+ 25% / – 50% (2 in. to 3-3/8 in.) | Concrete |
Reprinted from the Online Certifications Directory with permission from UL
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