Residential Roof Step Flashing

Continuous flashing is sometimes seen where a roof meets a sidewall but in the long run step flashing will do a better job of preventing water leaks. Jamsill guard sill pan flashing 4 5625 in x 40 in plastic step flashing. The journal of light construction jlc field guide to residential construction a manual of best practice volume 1 12 includes figure 3 81 which illustrates through flashing around the brick chimney extending over the base and step flashing and serving as counterflashing.

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Step flashing should be extended at least 4 inches up the wall from the roof deck and at least 4 inches out along the roof deck 2015 international residential code irc.

Residential roof step flashing.

Multiple pieces of the flashing will be installed in layers with shingles to ensure the water flows away from the wall. How doers get more done. It is used for roof to wall flashing. Galvanized sheet metal bent at a 90 degree angle i e.

Step flashing is a rectangular piece of flashing bent 90 degrees in the center. Bent into an l shape. Galvanized steel step flashing in weathered wood model 18912 62. Step flashing is used to provide a water tight connection where roofing adjoins a vertical juncture.

Underlayment materials required to comply with astm d226 d1970 d4869 and d6757 shall bear a label indicating compliance to the standard. Unless otherwise noted underlayment for asphalt shingles metal roof shingles mineral surfaced roll roofing slate and slate type shingles wood shingles wood shakes and metal roof panels shall conform to the applicable standards listed in this chapter. Step flashing should be integrated with the drainage plane above for example overlap housewrap over it. Posted march 4 2017 filed under roof installation roof repair maintenance.

The elastomer collar has been tested for ultraviolet ozone and weather resistance and heat tested to 180 f. This adjustable pipe flashing has a 24 gauge galvanized steel base suitable for commercial or residential use. This flashing is typically field fabricated from a sheet of 26 ga. Step flashing redirects the water back onto the shingle.

Roof flashing chimney flashing aluminum flashing roofing shingles 50 in. While the author believes this detail is functional it may not be. Installing new flashing is a straightforward process on roof edges but counter flashing or step type flashing techniques are necessary around vents and vertical walls. It is used for roof to wall flashing.

This adjustable pipe flashing can accommodate 1 1 4 in 1 1 2 in 2 in. Item 831018 model 4916sp 30. Even if one piece of step flashing fails the flashing and shingle below it start the. Or greater step flashing aluminum step flashing.

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