Flat Roof To Wall Flashing Detail

Same type of metal as the flashing material.

Flat roof to wall flashing detail. Ideally this should be 150mm or a minimum of 75mm again common sense and exposure applies. Here is an attempt though maybe not a very good one to make the roof flashing serve also as a through the wall flashing with a tile roof. The metal flashing is formed with a hook edge and cleated on 12 centers. 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.

Tape the top of step flashing with 4 inch wide minimum self adhering modified bitumen roof tape. Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley. Flashing is installed to surround roof features such as vents chimneys and skylights. Do not seal housewrap or building paper to step flashing.

At roof to wall intersections see figure 1. This collection of 18 articles animations and videos identifies the critical roof flashing areas illustrates durable roof flashing details and shows how to flash roofs right in the real world. Roof wall flashing architectural detailing this design guide has been prepared to assist architects and architectural draftspersons with the design and installation intricacies of detailing roof and wall flashing for metal cladding. The flashing extends up the wall at least 4.

The flashing extends onto the roof a minimum of 2 inches 4 inches is preferable in more severe climate areas. Flat roof flashing this could virtually be any type of flat roof the upstand of the flat roof covering is overlapped by the drop of the flashing. N tape the top of step flashing with 4 inch wide minimum self adhering modified bitumen roof tape. N use step flashing that has a 2 to 4 inch lon ger vertical leg than normal.

Lead flashing maximum length. N at roof to wall intersections see figure 1. 3 12 flashing large roof penetrations 17 3 13 flashing small roof penetrations 19 3 14 expansion 20 3 15 standard roof flashings 21 3 16 non standard roof flashings cappings 24 3 17 box gutters 25 3 18 barge gutters and capping 26 4 0 typical wall flashings 27 4 1 cladding orientation 27. N use flashing cement at joints to help secure flashing.

Use step flashing that has a 2 to 4 inch longer vertical leg than normal. Flashing joints are lapped 6 in the direction of water flow.