Flashing A Deck Roof To House

Start by making an outline on the siding where you want to position the ledger board.

Flashing a deck roof to house.

These 18 articles will teach you how to install flashing and bolt the ledger connection to the house rim. Flashing a patio roof ledger. 4 inches should go up the house wall and 4 inches should go on top of the porch roof shingles. Detailed photos in this article show the difference.

While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately. A deck is a functional and often beautiful addition to a home. Step 6 make a 10 degree bend on the shingle edge of the flashing approximately 1 2 inch from the edge. Now you can begin assembling the outer rafters and attaching the rafter beam to the edge of the roof of the house.

Unless it will be protected from rain by the house s eaves or a solid roof a roof ledger that is fastened directly to a house with wood siding should be capped with galvanized metal z flashing that tucks up under siding to prevent water from seeping in behind it. Ideally the house s sheathing should be triple protected from moisture with building paper or roofing felt stapled to the sheathing. With proper flashing a wood deck will last many years. After you demolish the old deck but before you start work on the new one you ll need to make sure the wood on and in.

Snap a chalk line cut out the siding and tack up the ledger board. In the past metal flashing and extra layers of roofing felt tar paper were often used but nowadays vinyl z flashing and rolls of vinyl back flashing do a better job. Then with back flashing. Properly installing a ledger board for your deck is one of the most important structural components of building a safe and strong deck.

Without it the deck and the ledger it s attached to will quickly rot. After that to make it flush with the roof of the existing house cut the two outer rafters. Then slip flashing behind the siding covering the top edge of the ledger. Open valleys have metal flashing to protect this critical area of the roof.

Most flashing is 8 inches wide. Cut each of the house ends while continuing installing the rafters so that they fit the top of the rafter beam perfectly.