Other photos on this page show shingle corner curling. Our page top photo shows shingle edge down-curling. We describe shingle granule loss shingle curling as a sign of wear on asphalt shingle roofs and discusses how to identify & explain the most-common asphalt roof shingle failures. This roof failure diagnosis article series investigates types and causes of premature or early roof wear or failures. Here we discuss why this wear happens and what to do about it. But on occasion, such as in our photo above, we see remarkable wear in the form of granule loss, cupping, or curling at the ridge that has not appeared elsewhere on the roof. The most common failure at the ridge or hip covering of most roofs, regardless of roofing material, is wind damage and blow-offs due to inadequate nailing. This article describes the installation of ridge and hip cap shingles and discusses the probable causes of early failures on ridge and hip shingles on asphalt shingle roofs when they fail in advance of other roof areas. We have no relationship with advertisers, products, or services discussed at this website. InspectAPedia tolerates no conflicts of interest. about early or premature roof shingle leaks, wear, or failures.This rating is not to be construed as any type of express or implied warranty or guarantee of the impact performance of this shingle by the manufacturer, supplier or installer. IKO UltraHP IR hip and ridge shingles have a Class 4 impact-resistance rating tested against UL 2218, which IKO is pleased to present for the sole purpose of enabling homeowners using these shingles in conjunction with Class 4 impact-resistance-rated shingles to obtain a discount on their home insurance premiums, if available in their area. UltraHP®IR high profile ridge cap shingles are designed to be used with IKO Nordic shingles for a complete impact-resistant roof. They are made with polymer-modified asphalt for added flexibility.Īn impact-resistant option is also available. These high profile ridge cap shingles are thicker and packaged prefolded. Many years ago, this desirable, thicker roof ridge cap look inspired the introduction of a new type of ridge cap shingle: IKO UltraHP®. The double look complements the double-layer thick structure of laminated shingles, thereby giving the whole roof a heftier, more robust appearance. But if you install them doubled up, with the top one about three quarter inches higher, it gives the appearance of a richer, thicker ridge cap or hip. In standard application, the ridge cap shingles are installed and lapped one at a time. You can accentuate the roof ridge cap and enhance the overall roof appearance with this simple ridge cap trick: double them up. Installing the final cap shingle at a hip and ridge junction.
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