
Waterguard
Non-fire-rated walls
- Profile height
- ½ inch
- Smoke
- Less than 1 CFM/LF at ambient and 400°F
- Sound
- STC up to 71
- Bottom sealant
- Eliminates separate bottom-of-wall sealant.
Waterguard snaps onto the bottom of the drywall before you hang it. It protects drywall from moisture, gives rubber base solid backing, and replaces a separate bottom sealant step where the selected wall detail permits.
What all three products do
All three snap onto the drywall before hanging and protect the bottom of the wall.
The profile separates the gypsum from the slab.
Continuous backing supports the finished base across the gap below the drywall.
Snap it onto the board before hanging, then hang and fasten the drywall as usual.
The Waterguard lineup

Non-fire-rated walls

1- and 2-hour fire-rated walls · BW-S-0078

Non-fire-rated walls
For interior use. Profile height is the height of the product; board thickness and floor clearance are separate measurements.
Waterguard FS · Fire
1 & 2 hour
UL 2079 · Joint System BW-S-0078.
Install to the listed system requirements.
Waterguard and FS · Sound
Up toSTC 71
Plus: STC up to 57. Results apply to the tested wall construction and installation.
All three products · Air leakage
<1 CFM/lin ft
At ambient and 400°F.
Follow the selected product’s wall detail.
Samples · pricing · project support