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Home > Products > Shingles, Cedar > Info - Cedar Shingles  > Cedar Shingle Flashing

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Cedar Shingle Flashing



Proper flashing is critical for any exterior wall assembly. Improper flashing and excessive caulking can force and trap water in the wall. The objective of flashing around doors, windows and other junctures is to keep water flowing "down and out" to the surface of the wall. Flashing should be installed per International Building Code Section 1405.3 Flashing or consult your local Building Inspector for more stringent local codes.

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Flashing should be made from a non-corrosive material and should extend a minimum of 2" vertically up the wall. Flashing must be overlapped by the moisture barrier.

Cedar Shingle Siding must never rest on the horizontal surface of flashing. Otherwise, it is possible for water to wick up the Shingles and into the wall. Therefore, Shingles should be a minimum 1/4" above the horizontal surface of the flashing. Shingles should be a minimum of 1" above roof flashing at all roof-to-wall junctures.

Caulk should be used only on vertical joints where Shingles meet doors, windows, and corner boards; and at the bottom of window ledges or other protrusions to prevent any water flow off the window from entering the wall. Only a non-hardening caulk that will expand and contract should be used.

Flashing and Caulk Points



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