Box Gutter Framing

Unlike other gutters they are part of the roof structure.

Box gutter framing.

Box gutters are composed of wood framing with a sheet metal lining normally copper stainless steel or galvanized steel. Licensed sheet metal contractor call 323 405 4555 for estimates in la or oc. Fascia and beam cladding custom slanted back box rain gutters. Sheet metal seamless rain gutters metal siding metal wall panels fascia wrap soffit cladding aluminum copper steel a plus gutter systems inc.

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. 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. The bottom of the frame may be pitched to provide positive drainage to the downspout. Provision is made in the design of the gutter to have a rain flow to the outlet with a maximum slope of 1 200 and a minimum of 1 400.

A box gutter does not hang onto the edge of a roof or on the edge or side of a house as many modern pre formed metal gutters do. The box is built by an experienced carpenter into the roof overhang or into the bottom of the roof then lined with the sheet metal. 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. The lining must be free to move.

Box gutters are also known as parallel gutters trough gutters or built in gutter systems. 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. They are most commonly found in older historical homes or buildings. Although the copper lining conforms closely to the gutter frame profile it should not fit tightly.