Roof Valley - A Look at Replacement Costs & Repair Prices

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If property owners are aiming to have their roofing last for several years, an open valley is IKO's suggested choice and an excellent up-sell opportunity for the roof expert. If you are installing an open valley, you will need to select a flashing product. Normally, flashing is a metal. Possibilities consist of: Copper (might be cold-rolled or high yield).

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Steel (needs to be stainless or galvanized). Zinc alloy. Painted terne (steel with a lead and tin coating). Various codes might require different materials, but IKO suggests, as a minimum, a 28-gauge galvanized metal. If not metal, the product needs to still be corrosion-resistant and non-staining. Also, at a minimum, valley flashing should be 24 inches (610 mm) large.

Also, it is ideal to install valley flashing that will match or last longer than the life expectancy of the shingles, so they can be replaced together. You also want to consider the valley flashing profile. While some flashing is straight, others have a "W"- shaped bend in the center. This produces a crimp in the center of the flashing, which avoids water from crossing from one side of the flashing to the other.

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Then, consider the visual of the flashing. Some house owners want the flashing painted to match the shingles. Others desire a dramatic look with contrasting colors, or with the copper or steel face left unaltered. Your choice of shingle color and flashing can make a remarkable distinction to the outside of a house.

Then, starting at the base of the valley, center your very first piece of flashing in the valley. To protect the roof valley flashing, nail it down carefully. Only nail at the edges, with only sufficient nails to hold it in place. Extra nails might increase the danger of leakages. Moving up the valley, set up any extra roof flashing, as needed to cover the entire length.

Initially, use asphalt plastic cement under the overlap location, then place and nail down the 2nd piece of flashing. Now you require to set out chalk lines to direct you as you install shingles along the valley. SmartLiving to the valley and down its entire length.