Box Gutter Depth

Suffix 1 represents the base condition to be scaled and suffix 2 the scaled result.

Box gutter depth.

Modifications such as roof flanges are common on custom profiles. A wider overflow needs less depth of overflow hence the box gutter depth will also be reduced. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. 6 inch 7 960 square feet.

At k m sheet metal and gutter supply we offer box gutters in several profiles since these are bent on a brake. The usual nomenclature applies q flow w width y depth. The most important point of this section is that you cannot reduce the size of the box gutter to exit the building so we advise keeping the box gutters between 200mm and 300mm wide. With 1 gpm 0 063 l s flow rate.

Critical depth occurs near the outfall of every box gutter. If a roof s various drainage areas call for different size gutters go for the biggest one k style. These gutters are commonly seen in commercial and industrial applications but are also used in homes for a more clean and modern look. Have a minimum depth of 75mm at the high end.

Normally offered in 10 and 20 we can actually bend such profiles in up to 21 lengths. The best and simplest is the critical depth equation. Have a minimum width of 300mm for commercial installations 200mm for domestic installations. Our 6 box commerical gutter is fabricated from 032 kynar 500 aluminum.

It states that the highest point of a rainhead cannot be higher than 50 of the overall depth of the box gutter. Downspouts and gutters are sized in relation to rainfall on this basis. Have a sole width which is not reduced discharge at the downstream end without box gutter design. It may be lined with epdm rubber metal asphalt or roofing felt and may be concealed behind a parapet or the eaves or in a roof valley.

Plumbing codes typically use the vertically projected roof area for drainage design and they often use a square foot allowance per square inch of downspout for 1 in hr 25 mm hr rainfall that varies with diameter for example 3. 5 inch 5 520 square feet. Then use the chart below to see what size gutter you need. The width of the rainhead is to be at least equal to the width of the box gutter and the box gutter needs to.

Architects around the world specify kynar finishes since no other coating withstands the rigors of nature and time like those based on the kynar 500 resins. Box gutters are essentially placed between parallel surfaces as in a valley between parallel roofs or at the junction of a roof and. The box gutter depth and the sump length are influenced by the size of the overflow. A box gutter internal gutter parallel gutter or trough gutter is a rain gutter on a roof usually rectangular in shape.

Depth of the box gutter consistent with saa hb39 installation code for metal roof and wall cladding section 5 clause 5 7 3 and figure 5 7 3 to prevent internal flooding or damage to the building or contents see figure 2.