Product Overview

Joist Guard Waterproof Protection 4" X 75'

Waterproofing Membrane for Deck Joists and Beams. RESISTO JOIST GUARD provides waterproof protection for joists that prevents rotting of structural timber under exterior floors, such as for patios and balconies. RESISTO JOIST GUARD is a self-adhesive membrane composed of elastomeric bitumen. The surface is made of polyethylene; the underside is covered with a silicone release film. Four-inch rolls are ideal for two-inch-wide joists.

Substantially extends the service life of the patio at low cost

Excellent flexibility

Self-sealing membrane around fasteners

Easy installation at any temperature

Compatible with most decking materials, such as treated wood and composite materials

Approximate usage 10 x 10 ft patio 1.5 roll, 12 x 12 ft patio 2 rolls, 15 x 15 ft patio 3 rolls