Cedar Siding Corner Flashing

Flashing must be overlapped by the moisture barrier.

Cedar siding corner flashing.

Cedar shingle siding must never rest on the horizontal surface of flashing. Use a felt paper spline wrapped around the corner and extending 6 inches beyond the corner board to protect the joints where the siding meets the corner boards see figure 1 5 at left. Building siding flashing finish details for building corners. Siding corner is primed white and has a wood grain surface.

This aluminum corner is for hardboard siding measuring up to 1 2 thick. Edge strip for corners. Flashing should be made from a non corrosive material and should extend a minimum of 2 vertically up the wall. Use overlapping 1x4s or 1x6s at outside corners or use 5 4 stock for a heavier look.

Width is a matter of taste and proper proportion. The 122 series corners are also available in copper or stainless steel by special order only and available in a wide variety of lengths and flange widths to cover most styles of wood siding. This aluminum trim is a great choice for siding corners lightweight yet durable. Face width 1 3 4 per side at the bottom tapering to 1 1 4 at the top.

Otherwise it is possible for water to wick up the shingles and into the wall. The base of this outside siding corner is 1 11 16 wide from center to outside edge. These siding corners provide both stability and protection while giving a seamless look to hardboard siding. 122 series corners are designed primarily for wood siding.

Thickness of the corner board will depend on the thickness of the siding. The most common are 3 4 inch or 1 1 4 inches thick.