Deck Flex W.F. Waterproofing System

Deck Flex W.F. is a Class B Fire Rated Elastomeric Waterproofing System for plywood decks and roof coverings. ICC ESR-3672.

Recommended Uses

  • Fire Classified Roof Decks
  • Plywood Decks
  • Patio Decks
  • Walking Decks
  • Concrete Surfaces
  • Wood Surfaces
  • Class "B" Fire Classification (ESR-3672)
  • Deck Waterproofing

Preparation

All surfaces must be free of contamination such as water, curing compounds, hardeners, bond breakers, paint, etc. Substrates must be structurally sound, free of any projections or depressions.

Plywood substrates must be clean, dry and installed according to code. Plywood must be a minimum of 5/8" with all joints over framing members or blocked with minimum nominal 2x4 blocking.

The plywood must be sloped for proper drainage according to code.

Concrete substrates must be clean, dry and installed according to code. Concrete must be cured for a minimum of 28 days. The concrete must be sloped for proper drainage according to code.

Application Guide for Plywood

Step 1
All plywood joints are covered with Deck Flex metal seams. Galvanized metal with 0.16" thickness, 1 3/4" wide using 1/2" wide 5/8" long staples.

Step 2
Two light coats of Deck Flex Patching Compound are applied onto the installed metal seams (4"-8" wide).

Step 3
All holes, knots, and cuts on the plywood surface will be filled with Deck Flex Patching Compound.

Step 4
Fiberglass mat 3/4" oz per square foot 50" wide shall cut to fit the area to be coated.

Step 5
Deck Flex Base Coat shall be rolled and brushed (corners) over the fiberglass material at the rate of 60-75 square feet per gallon. Dry time 2-4 hours depending on weather. Dry thickness 1/16".

Step 6
Deck Flex Tex-Crete mixture of 45-50 pounds of Tex-Crete #2 (TC-2) and one gallon of Tex-Crete Additive shall be troweled down onto the cured Deck Flex Base Coat at the rate of 70-85 square feet per gallon. Dry time 2-3 hours depending on weather. Minimum thickness 1/16".

Step 7
Deck Flex Texture Coat mixture of 45-50 pounds of Tex-Crete #2 (TC-2) and one gallon of Tex-Crete Additive shall be sprayed onto entire cured surface at the rate of 90-100 square feet per gallon. Dry time 1-2 hours depending on weather.

Step 8
Deck Flex Top Coat shall be applied by rolling or brushing onto entire cured texture coated surface at the rate of 150-180 square feet per gallon. Dry time 1 hour or less depending on weather.

Application Guide for Concrete

Step 1
All cracks and joints must be sealed with Deck Flex Patching Compound and special caulk. Cracks larger than 1/8" must be reinforced with fiberglass mat and Deck Flex Base Coat.

Step 2
Fiberglass Mat 3/4" oz. per square foot, 50" wide shall be cut to fit the area to be coated.

Step 3
Deck Flex Base Coat shall be rolled and brushed (corners) over the fiberglass material at the rate of 60-75 square foot per gallon. Dry time 2-4 hours depending on weather.

Step 4
Deck Flex Texture Coat mixture of 45-50 pound of Tex-Crete #2 (TC-2) and one gallon Tex-Crete Additive shall be troweled down onto the cured base coat. Minimum thickness = 1/16" at the rate of 70-85 square feet per gallon. Dry time 2-3 hours depending on weather.

Step 5
Deck Flex Texture Coat mixture of 45-50 pounds of Tex-Crete #2 (TC-2) and one gallon of Tex-Crete Additive shall be sprayed onto entire cured surface at the rate of 90-100 square feet per gallon. Dry time 1-2 hours depending on weather.

Step 6
Deck Flex Top Coat shall be applied by rolling or brushing onto entire cured Texture Coat surface at the rate of 150-180 square feet per gallon. Dry time 1 hour or less depending on weather.

Product Downloads

ICC-ES ESR-3672
PDF Report
Standard Color Chart
Download
Legacy Report
ER-5019