Flashing Above Roof Behind Brick

A 2x4 laid on the roof is a good way to gauge this.

Flashing above roof behind brick.

Cut a slot of about 1 5 inches into the brick with a circular saw and masonry blade. 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. 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. In this video we explain how to properly setup the flashings wall details for brick or natural rock above a roofline.

This is where you most often see a brick pocket which has proven to fail. Starting at the lowest part of the roof completely cover all three exposed surfaces of the block with peel and stick membrane. This leaves enough room for the vertical leg of the step flashing. Counter flashing is necessary to prevent water that runs down the outside face of flashing from going behind the base flashing.

Chalk a straight line about 2 inches above the back of the base flashing. It can cause major water damage to the home if installed improperly or not at all. Use your caulking gun to caulk a straight line above the back of the base flashing. Make sure the inside corners of the supporting masonry are at least 4 inches above the roof deck.

Water and ledgers don t mix and that is why most fail. 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. To prevent wood rot it is important to install flashing over your ledger board properly.