Flashing Under Aluminum Siding

A common problem with cement board siding products and some other types of horizontal lap siding is that older installation guidelines called for caulking the joint instead of flashing the joint.

Flashing under aluminum siding.

Where the step flashing terminates along a sidewall is a common trouble spot for moisture problems. And like other flashing metal coil comes in most popular siding and soffit colors for easy matching and a professionally finished look. Snap a chalk line cut out the siding and tack up the ledger board. In areas where snow may build up add a wide band of peel and stick membrane over the step flashing but under the sheathing wrap as shown.

It is used to protect the horizontal joints between sheets of siding from water infiltration. Keep water out of your home and running down the roof where it belongs with appropriate use of step flashing. This is messier than acrylic latex but effective. Posted march 4 2017 filed under roof installation roof repair maintenance.

Seal small cracks and gaps in your siding under 1 4 inch wide using an acrylic latex caulk. The best solution is a preformed or custom bent kick out flashing to divert the water away from the siding. Step flashing is used to provide a water tight connection where roofing adjoins a vertical juncture. It s a tight fit to drive the nails into the undersill but you can gently pull back the.

Step 7 seal larger gaps up to 1 2 inch wide with polyurethane caulk. Wall or siding connection to foundation top porch floors slabs. Slip flashing under siding. Step flashing is used where a roof meets a.

If the sidewall is stucco or solid wood like ours and you can t open it to get flashing behind it continue the step flashing to the peak of the roof then cover the step flashing with cap flashing. Galvanized steel z flashing is made from 28 gauge galvanized galvanized steel z flashing is made from 28 gauge galvanized steel. This aritcle describes the cause repair and prevention of leaks rot damage at a wood framed wall that was not properly flashed and sealed at the wall bottom. This has proven problematic over time as caulking the joint results in unsightly surface appearances due to the different textures as well as resulted.

Then slip flashing behind the siding covering the top edge of the ledger. Simply apply this inexpensive filler into the cracks to seal. Galvanized sheet metal bent at a 90 degree angle i e. This flashing is typically field fabricated from a sheet of 26 ga.

How to install step flashing under siding. The large leg of the metal goes against the wall leaving the seat and face covering the top edge of the siding. Building wall or siding flashing details at horizontal surfaces. Paint works well over it.

J channel will also work over the bottom cut using 11 gauge aluminum nails. For more on extruded aluminum flashing options go to http.