Gutters And Downspouts Informational Facts
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Gutters And Downspouts Informational Facts

Gutters and downspouts are a very important part in homebuilding. Gutters and downspouts keep water away from your foundation of your home.

Gutters And Downspouts

Various types of gutters are on the market. The two general types are the formed metal and the half-round. Downspouts or leaders are rectangular or round, with the round leader being ordinarily used with the half-round gutter. Both the round and the rectangular leaders are usually corrugated for added strength. The corrugated patterns are less likely to burst when plugged with ice.

Wood gutters may be used in place of metal gutters and are usually fastened by means of rust-resistant screws or nails. Nailing or spacing blocks are placed between the gutter and the fascia or frieze board about 16" on center. Wood gutters are given very little pitch because they usually are part of the architectural treatment. Joints in wood gutters are best made by dowels or splines. The joints are covered with heavy fabric tacked in place and covered with a mastic. It is recommended that 1 or 2 coats of water repellent containing a preservative be applied to the bare wood.

Hanging metal gutters are held with flat or wire metal hangers that are so installed that a pitch is formed for drainage. Joints in metal gutters and downspouts should be soldered. Gutters should be mounted so that the shingle extension is over the center of the gutter. Hangers should be spaced 3' to 4' on center.

Another type of formed metal gutter has an extension or flashing strip that is fastened to the roof boards. These gutter are usually made so that the back varies in height to allow a pitch for drainage. Hangers are used at the outer rim to add stiffness.

Metal gutters are placed to drain toward the downspouts. With a slope of approximately 1" in 10', the maximum run between the high point and the downspout should not ordinarily exceed 25'. A gooseneck is used to bring the downspout in line with the wall. The form of this gooseneck will vary according to the extent of the cornice overhang.

Downspouts are fastened to the wall by means of leader straps or hooks. Many patterns of straps are made to allow a space between the wall and the downspout. A minimum of two straps should be used in an 8' length of leader: one at the gooseneck and one at the bottom elbow. The elbow is used to lead the water to a splash block that carries the water away form the foundation. The minimum length of the splash block should be 3'. It is the practice, in some areas, to carry the water to a storm sewer by means of tile lines.

In final grading the slope should be such as to insure positive drainage of water away from the foundation walls.

Related keywords: diy gutters
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Comments (2)

Well shared info. Thank you for your experitise. Promoted since I am out of votes.

This is such a great piece of work.

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