Flashing Above Roof Behind Brick

It can cause major water damage to the home if installed improperly or not at all.

Flashing above roof behind brick.

Install the flashing before you finish the top of the brick wall as the flashing must go behind the siding as well as behind and under the top row of bricks that angle outward to cover the top. Make sure the inside corners of the supporting masonry are at least 4 inches above the roof deck. A 2x4 laid on the roof is a good way to gauge this. Cut a slot of about 1 5 inches into the brick with a circular saw and masonry blade.

This is where you most often see a brick pocket which has proven to fail. Caulk the slot after the flashing has been installed. Using the circular saw and masonry blade cut a slot about 1 5 inches into the brick so that the overlapping flashing or counter flashing will slide into the slot. Chalk a straight line about 2 inches above the back of the base flashing.

This leaves enough room for the vertical leg of the step flashing. Water and ledgers don t mix and that is why most fail. Counter flashing is necessary to prevent water that runs down the outside face of flashing from going behind the base flashing. Flashing protects a home from water in ways and areas that a vapor barrier don t water protection is a combined effort and flashing plays a major.

Flashing problems with brick veneer are one of the most common issues we find with both real and thin brick walls. Starting at the lowest part of the roof completely cover all three exposed surfaces of the block with peel and stick membrane. Like ledger flashing installing brick flashing is not difficult to do and will extend the life of your front porch or deck.