Porch Roof Flashing Detail

This article explains critical deck flashing details for decks in order to avoid rot and leaks at the deck ledger board and at the building to which a deck is attached and we provide deck or balcony design and construction details for waterproofing at door jambs and sills.

Porch roof flashing detail.

Mc12b metal flashing options. Nail the flashing securely in place using roofing nails. Gently hammer the 45 degree cut around the corner of the porch roof. Use the metal break tool to bend the flashing lengthwise in the middle according to the angle of the roof joint.

The flashing on the wall should be flush against it and the porch roof portion should be on top of the shingles. Mc10d double lap tile. Step 6 make a 10 degree bend on the shingle edge of the flashing approximately 1 2 inch from the edge. The flashing shall be a minimum of 4 inches 102 mm high and 4 inches 102 mm wide.

Roof flashing is a thin material usually galvanized steel that professional roofers use to direct water away from critical areas of the roof wherever the roof plane meets a vertical surface like a wall or a dormer. The corner cut should be facing upwards. Mc11 head wall metal flashing. Flashing is installed to surround roof features such as vents chimneys and skylights.

Flashing details for decks porches. At the end of the vertical sidewall the step flashing shall be turned out in a manner that directs water away from the wall and onto the roof and or gutter while this is a nice diagram of how these flashings work don t forget our 5 th design rule. Try to keep the nails as flush as possible to the edges. Lay the cut flashing down at the corner over a shingle that is already in place.

Most flashing is 8 inches wide. Mc12a pan flashing roof to sidewall 2. Roof to wall and deck to wall flashing www fema gov technical fact sheet no. 4 inches should go up the house wall and 4 inches should go on top of the porch roof shingles.

To install the roof wall flashing above the builder bent the top edge of the flashing into a 90 degree lip about 2 cm in width. Mc11a head wall metal flashing 2. Place the flashing between the joint of the house and the roof. Mc10c low slope ventilated eave detail.

Mc12 pan flashing roof to sidewall. Edge flashing and starter strip roofs peel off from the edges so it is critical to hold them tight with the roof deck sealed on the outside we turn to flashing the edges with metal and membranes metal drip edge flashing details roofing wrb flashing. That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above.