Box Gutter Framing Detail

A box gutter is actually built into the bottom of the roof or into the roof overhang.

Box gutter framing detail.

They should not be confused with so called valley gutters or valley flashings which occur at the non parallel intersection of roof surfaces typically at right angled internal corners of pitched roofs. The details shown are for the lining of a wood box gutter frame. On this page you can find the pdf instructions for installation of a typical box gutter detail with the dryseal flat roofing system. The foundation of most box gutters is wood that is then covered with thin sheet metal such as tin copper lead stainless steel or some other metal that will not readily corrode.

Most box gutters consist of wood framing covered by a thin sheet metal lining made out of galvanized steel stainless steel copper or another metal that will not easily corrode. 44 0 1327 701 900 e. Clearance for downspouts through the wood framing is a minimum 1 2 all around. The shape of the box gutter is created by a skilled carpenter as the shape and.

Box gutters are essentially placed between parallel surfaces as in a valley between parallel roofs or at the junction of a roof and a parapet wall. A box gutter is defined as a graded channel generally of a rectangular shape for the conveyance of rainwater within the building footprint including adjacent to a wall or parapet.