How Much Overlap On Metal Roofing

If you re installing a metal roof on a home without gutters you can overhang the panels by twice that amount.

How much overlap on metal roofing.

Overlapping anti condensation lined sheets. The panels overlap allowing water to flow from one panel to the next without being able to penetrate the area under the roofing panel. When laying the metal panels on the roof the overlap ridge of the new panel should straddle the underlap ridge of the panel before it. Secure the sheets into place with screws.

Be sure the larger edge is laid so that the small edge of the next panel will overlap it. Installing corrugated metal roofing will require you to lap the m. Apply side lap sealant if the pitch of your roof is 2 12 or less. Learn how much to overlap the corrugated sheeting.

How to overlap corrugated metal roofing. For example if the measured length is 19 feet 10 inches and an additional overlap of 6 inches is required at both ends the final figure will be 21 feet 19 feet 10 inches plus 6 inches times 2. Any end laps must be supported by a suitable purlin. Once the first sheet is in place you need to install the remainder of the lowest row of corrugated metal roofing.

The sheets should overlap by at least four inches add a bead of caulk where they overlap and at the other end of the building ensure there s an overhang of two inches. On the eave side of the roof aim to overhang the panels by 1 to 1 5 inches. Install the roofing screws vertically along each rib in the panel. How to overlap metal roofing.