
WaterproofingSKU APT-WB-1235
XPS Foam Tile Backer Board — 1/2" × 3' × 5'
- 1/2 in thick, 3 × 5 ft sheet
- Waterproof & vapor retarding
- Cuts with a utility knife
$24.50
per sheet
$220.50
case of 10 · $22.05 ea

Waterproofing & Tile Backer
SKU APT-WB-DCM
Polyethylene uncoupling membrane that protects tile from substrate movement.
Contractor/volume pricing available. Request a quote
| Roll size | 3.3 ft × 33 ft (108 sq ft) |
|---|---|
| Thickness | 1/8 in (3 mm) |
| Material | Polyethylene with polypropylene fleece |
| Substrates | Plywood, OSB, concrete, gypsum |
| Rolls per case | 4 |
| Case quantity | 4 per case |
A grid-structured polyethylene membrane with a fleece backing that bonds to the subfloor with thin-set. It neutralizes lateral movement between the substrate and tile, prevents cracks from telegraphing through, and doubles as a waterproofing layer when seams are sealed.
Often bought together


