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. You May Like: Ladder Platform Shingle Hoist Rental A Bolder Look: Doubled And High Profile Ridge Cap Shingles While this is an old, worn-out roof, it may be meaningful that at end of life the ridge cap shingles failed in the pattern seen there: bending stress over the ridge may have ultimately stressed the ridge cap shingles so that they broke at the ridge apex.Īt left is a different and interesting ridge cap shingle failure that needed some thoughtful analysis. Our page top photograph shows ridge cap shingles that have worn out and actually lost shingle portions that have washed off of the roof. Hip & Ridge Cap Shingles: Installation Failure Causes Diagnosis Repair The problem is that 3-tab shingles are only rated for 60mph winds, whereas true hip and ridge shingles are rated for 130mph. In contrast, some roofers will cut corners by taking typical 3-tab shingles, cutting them in thirds, and using them as hip and ridge shingles. Hip & Ridge Shingle Wind RatingĪctual hip & ridge shingles are meant for such elements. The Malarkey Roofing hip and ridge shingle installation instructions include clear illustrations of these details. And remember to set the final ridge or hip cap shingle in mastic or sealant to improve wind resistance. Watch out: be sure that your shingles are laid in direction along each hip or ridge so that the exposed-end of the shingle tab is facing down-wind. For the starter shingle, place fastener 1″ in from each side edge and about 2″ up from the starter shingles exposed butt edge, making sure fastener goes 3/4″ into the deck or all the way through the deck.įor each full Cedar Crest shingle, place fasteners 8-5/8″ up from its exposed butt edge and 1″ in from each side edge. IMPORTANT: Use TWO nails to fasten each shingle. In fact the chances of leaks at a nail at the ridge, the highest point on this roof, are less than chances that the ridge cap shingle, bent over a change in roof height, is going to crack, break, and leak or blow off of the roof as it ages. The home inspector’s arrow marked an exposed nail where he advised his client to seal exposed nails on the roof at the ridge. At above right our photo shows a ridge cap shingle being asked to serve beyond the call of duty. Product Guide: DuraRidge® Hip & Ridge ShinglesĪt above left CertainTeed illustrates how to nail shingles at the ridge or hip.
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