Water Tight Technologies

  RUBBERALL® Family of Products
  RUBBERALL® Membrane Qualities
  Product Specifications & Safety Data Sheets
  Installation Manual
    General Information
    RUBBERALL® User Cautions And Warnings!
    RUBBERALL®Tools Needed
    RUBBERALL® Products Available
    Roof Surface Preparation
    Laying Out RUBBERALL® EPDM Membrane
    Pipe Penetrations
    Protrusion In The Roof
    Adhering Membrane With Solvent Based Bonding Adhesive
    Adhering Membrane With Water Based Bonding Adhesive
    Seaming Membrane Panels With Seam Tape
    Splicing And Seaming With Rubber To Rubber Adhesive
    Alternative Panel Layout And Seaming
    Perimeter Walls & Inside Corners
    Outside Corner Finish Detail
    Cover Strip
    Peel And Stick Pipe Boot
    Pipe Or Conduit Flashings Using Uncured Flashing With Tape
    Wall Termination
    Field Seam Radical Bend
    Roof Edge Termination With Metal Drip Edge
    Terminating RUBBERALL® On Fascia
    RUBBERALL® Membrane To Shingle Transition
    One Piece Drain Sleeve
    Drains With Clamping Rings
    Pitch Pockets
    Protecting RUBBERALL® Membrane In High Foot Traffic Areas (Decks)
    Repair Of RUBBERALL® Membrane
    Application Review
    Frequently Asked Questions
    RUBBERALL® Roofing Membrane Material And Labor Limited Warranty
    Warranty Registration
  Installation Video Guide
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Roof Surface Preparation

RUBBERALL® roof membrane will adhere to certain isocyanurate insulation boards compatible with RUBBERALL® adhesives. Solvent based adhesive will melt the polystyrene. Water based adhesive will not adhere to polystyrene. The roof membrane will also adhere to plywood, OSB (Oriented Strand Board), and one-half inch (1/2") high-density wood fiberboard and concrete. Polystyrene insulation may not be adhered directly to rubber membrane. If polystyrene insulation is used, cover insulation with one-half inch (1/2") high-density wood fiberboard. Butt all insulation boards together, staggering all of the joints. All spaces larger than one-quarter of an inch must be filled to provide a uniform, smooth surface.

Screws and deck plates shall be applied at the minimum rate of eight (8) per 4 ft. x 8 ft. sheet of insulation, and five (5) per 4 ft. x 4 ft. sheet or as required by the insulation manufacturer. When installing insulation around the perimeter, the fastening pattern is one (1) screw and one (1) deck plate every two (2) square feet (that is sixteen fasteners per 4 ft. x 8 ft. sheet). Examples of fastening patterns are shown in Figure 1. NOTE: Extra fasteners should be installed around protrusions such as pipes, chimneys, skylights and irregularities in the roof deck.

Figure 1 — Fastening Pattern

Do not install more insulation than can be covered with RUBBERALL® membrane by the end of the day.

Reroofing over a wet substrate is not good roofing practice. All wet material should be removed and replaced.

The roof surface must be dry. Moisture will cause poor membrane adhesion and blistering.

The roof surface should be swept to remove dirt, dust and other loose particles.

Good roofing practice dictates that the roof surface must have positive drainage of at least 1/8 inch in 12 inches.

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