R-Guard Installation Detail
Vertical Expansion at Dissimilar Substrate Greater than 1” Wide
wood construction with plywood or OSB sheathing
Apply a 3/8-inch bead of SureSpan Adhesive on both sides of the joint. The 3/8-inch bead will spread to a width of 1/2 inch (minimum 20 mils thick). Sealant coverage may vary depending on the porosity or texture of substrate.
Place the SureSpan EX into the wet sealant using hand pressure to adequately spread the SureSpan Adhesive onto the extrusion. Small adjustments to the placement of the SureSpan EX may be done at this time, but lifting and re-seating should be avoided and may result in needing additional SureSpan Adhesive installed to fully engage the extrusion into the wet sealant. Use a small roller such as a laminate roller to apply sufficient pressure to set the SureSpan Adhesive.
Prior to tooling the excess SureSpan Adhesive alongside the extrusion, gun an additional 1/4-inch bead of SureSpan Adhesive to smooth out and counterflash the exposed edge of the extrusion 3/4 of an inch. Tool excessive sealant immediately.
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