Our EPDM solvent bonding adhesive is designed to adhere the EPDM rubber to the roofing insulation or substrate. This is a solvent based contact bonding adhesive with coverage about 350 square feet both surfaces. A 5 gallon pail will cover about 350 square feet of finished roof area. This product is Hazardous material, classification UN1133 and Class 60 and must ship common carrier. The minimum freight on this product is $120.00 so it is best to combine multiple items and lower your shipping costs.
INSTALLATION OF EPDM MEMBRANE USING SOLVENT BONDING ADHESIVE
The EPDM membrane may be installed in a fully adhered application directly over 1/2" or larger plywood decking (APPROVED DECKING OR APPROVED INSULATION), if the deck support is considered adequate for the roof load as determined by the local installer, and the roof installation meets local building codes.
Position the EPDM membrane over the substrate, wood decking, concrete, or insulation, without stretching the sheet. Allow sufficient materials for perimeter attachment. When the new membrane is to be sealed to an abutting membrane, overlap the edge of the new membrane 5” onto the "in place" membrane.
Bond the new sheet to the substrate by folding the sheet lengthwise on to itself so that one half of the underside is exposed. Smooth out all the wrinkles and buckles along the folded edge. Apply the bonding adhesive evenly at the rate of 120 sq. ft. per gallon per surface using a 9" plastic core paint core paint roller or approved spray application equipment.
Allow the adhesive to dry until it is tacky and string free to the touch. Roll the membrane onto the substrate taking care to avoid wrinkling by using a "wave" air motion at the leading edge to "roll" the sheet into place. Bond the adhered half of the membrane with a 18" to 24" heavy duty push broom using a pushing motion to achieve maximum contact. Pull back the unbonded half of the sheet and repeat this procedure. Do not apply adhesive to the top surface of any abutting membrane that is to be used as the seam joint.
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