Home › Waterproofing membrane
Liquid waterproofing membrane coverage by brand and product
Coverage per gallon and number of coats for each liquid membrane we have checked, taken from the manufacturer's technical data sheet. Open a product to calculate pails for your own shower or floor.
| Product | Pails | Coats × coverage | For 100 sq ft |
|---|---|---|---|
| Custom RedGard Waterproofing and Crack Prevention Membrane Custom Building Products | 1 gal (3.78 L) and 3.5 gal (13.2 L) pails | Shower pan / ANSI A118.10 waterproofing: 2 × 80 sq ft/gal General waterproofing: 2 × 110 sq ft/gal Crack prevention (continuous): 1 × 100 sq ft/gal Crack isolation to ANSI A118.12: 2 × 50 sq ft/gal Vapor barrier, up to 8 lb/1000 sq ft/day: 1 × 70 sq ft/gal Vapor barrier, up to 12 lb/1000 sq ft/day: 2 × 70 sq ft/gal | 1 × 3.5 gal pail (Shower pan / ANSI A118.10 waterproofing) |
1 product. Real coverage depends on the tile, the substrate and your technique; each product page explains how its numbers are worked out.
Calculators
- Custom RedGard Waterproofing and Crack Prevention Membrane – Custom Building Products
Sources
- Custom RedGard Waterproofing and Crack Prevention Membrane: Custom Building Products Technical Data Sheet TDS-104: RedGard Waterproofing and Crack Prevention Membrane, Published 02/14/2025, read 2026-10-17