Valley Gutter Size

Where a valley gutter is less than 250 mm wide for profiled metal and masonry tile roofing e2 as1 allows the roof overhangs to be reduced to 60 mm to give a 40 mm clearance between overhangs.

Valley gutter size.

However a valley gutter with a minimum clearance of 100 mm allows the gutter to be accessed more easily for cleaning see figure 3. Though a 6 gutter is only an inch bigger it does handle 40 more water. Concrete valley gutter 1 valley 2 typical. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage.

Although 5 is considered the standard size for residential seamless gutters many homeowners are upgrading to 6 over sized gutters. 5 inch 5 520 square feet. As a general rule egutter recommends for roof areas that exceed 2800 square feet a 6 k style size with a 3 x 4 downspout size would be appropriate. See galvonic corrosion for more detail.

However a valley gutter with a minimum clearance of 100 mm allows the gutter to be accessed more easily for cleaning see figure 3. Then use the chart below to see what size gutter you need. Stratco valley gutter is available in 355mm or 400mm girth in 0 40mm and 0 55mm base metal thicknesses. Inside corner gutter valley splash guard with ornamental design outside corner can be special ordered by calling us 3 tall and each leg extends 8.

A tile valley gutter is available in the eastern states only with a girth of 450mm in 0 40mm thickness. Available in 14 colors. The over sized downspout installed with these gutters can also handle more debris passing through them. Click on picture for details.

Five inch k style gutters or 6 inch half rounds the most common residential sizes are able to handle the rainfall on most houses in most parts of the country. Where a valley gutter is less than 250 mm wide for profiled metal and masonry tile roofing e2 as1 allows the roof overhangs to be reduced to 60 mm to give a 40 mm clearance between overhangs. If a roof s various drainage areas call for different size gutters go for the biggest one k style. But houses with big steep roofs or those located in climates prone to heavy downpours may need wider gutters and extra downspouts to keep rainwater from overflowing.