Roof Side Lap

However sealant along side laps is often omitted.

Roof side lap.

Side lap refers to the overlap in a sideways or horizontal direction. How a side lap joint works. Flexible foam that is uv resistant and won t scratch the paint. Whenever one is installing a slate roof it is absolutely imperative the side lap is a minimum of 3 inches.

This side lap tape sealant comes in 150 ft. End lap refers to the amount of overlap in a direction following the roof slope. The side lap also is referred to as a side joint vertical joint keyway bond line or rain course. The rolls can be easily cut to length.

Then situate the leading edge of the first panel along this line. Roofing lap the amount by which roofing tiles slates shingles flashings etc overlap each other to achieve waterproofing. When two pieces of metal deck with the same profile are adjacent a side lap joint can be used to fasten the two sheets together by overlapping a portion of each sheet by using a side lap fastener. Rolls and installs in the side lap of the roof and wall panels.

Make sure the panel is square to the roof line. Why a side lap joint matters. Side lap sealant is a self adhering foam tape. On the eave side of the roof aim to overhang the panels by 1 to 1 5 inches.

Beginning at the roof edge measure one panel width and chalk a line from the ridge to the eave. Adhesive on one side allows the tape to remain in place while installing it.