deck ledger flashing

You will have to install ledger board flashing also known as a drip edge to act as a barrier to keep water out. If water can penetrate into the house framing it can result in severe mold, decay, and overall serious and expensive damage.

How do you flash a deck ledger board?

Proper flashing to a house frame.Cut the flashing with tin snips. Score with a utility knife. Bend flashing with a block and framing square for a 90 degree bend to fit inside the house corner wall. Measure carefully to cut around the door. Cut flashing. Slip flashing under siding. Slip the siding up and around the door.

Can you put flashing over pressure-treated wood?

Never use galvanized steel or aluminum flashing in contact with an ACQ pressure-treated wood ledger board because it will corrode. Vinyl flashing is the least expensive option, but it may not work as well in areas with extreme temperature fluctuations.

When should I flash my deck?

Deck joist flashing tape is used to protect your deck’s substructure – commonly made with traditional lumber – from moisture.

When to Use Deck Joist Flashing Tape
Prevents moisture penetration of joists.Protects the lumber from rot.Extends the life of the deck’s substructure.

Can you add flashing to an existing deck?

Installing deck flashing is not that difficult to do, even if the deck is already built. You will need to remove a deck board, or a section of deck boards pending if the deck boards run parallel or perpendicular to the deck ledger board. The deck ledger board is connected to the the house.

Should a ledger board be pressure treated?

Installing the Ledger Board

The lumber for the ledger and all framing members must be pressure-treated for exterior use. The ledger will establish the height of your deck. This is an absolutely critical connection and must be installed properly to ensure the strength and safety of the deck.

How do you flash a deck after it has been installed?

To add flashing, first remove the deck board that runs alongside the house. If the boards run diagonally, snap a chalk line 5-1/2 in. from the house, then set the blade in a circular saw to the depth of the decking boards and cut off the board ends. (Replace the cutouts at the end of the job with a 5-1/2-in.

How do you attach flashing to wood?

Install a tube of construction adhesive in a caulking gun. Apply a generous amount of adhesive along the back of both fins of the flashing. Reposition the flashing at the deck-to-wall intersection and align the cuts at the lower edge with the sides of the corresponding joists. Press the flashing firmly into place.

Does galvanized flashing rust?

This is the least expensive and least durable metal flashing material. It is not recommended in harsh climates or in contact with masonry materials or pressure treated wood. Like other galvanized products, the galvanic coating will eventually wear away exposing the underlying steel to corrosion.