Roof Flashing Details Pdf

Metal flashing section details sm of the nrca roofing manual.

Roof flashing details pdf.

The following conceptual details figures 9 1 to 9 6 show some of the typical conditions commonly encountered. Architectural metal flashing conden sation control and reroofing. Metal roofing source toll free 1 877 833 3237 www. The wall side of the flashing can either be covered over with siding or sealed with caulk.

Roof membrane will always drain free and clear of any adjacent system. Refer to the details. 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 4 2 walling profile running horizontally 27. Butyl tape should be applied where the foot of the flashing attaches to the roof.

Refer to fabral s eave and valley details to complete the above condition. Under lapped panels and valley flashing. Whenever possible begin trim installation at the downwind end of the roof farthest away from the source of prevailing winds to al low flashing laps to face away from wind driven rain. Lining must continue down to eave line.

This standard details manual aka the blue book is the right tool to have at your fingertips. 100 dan road canton ma 02021 phone 1 800 451 2504 sales 1 800 576 2358. Also try to ensure that the membrane does not rely on adhered or embedded sheet metal for water proofing. This detail is drawn and labeled as fixed ridge and hip and sliding eave and valley system.

Nrca does not recom mend caulking the joint between the bottom of the exte rior vertical face of a coping cap or metal edge flashing and building ex terior because it does not add to the wa terproo fing integrity. Include roof pitch roof geometry slope length and climatic factors such as heavy snowfall or rainfall.