Replacing loose Shingles

Old 08-04-02, 02:04 PM
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Unhappy Replacing loose Shingles

I have asphalt shingles which blow off in the strong monsoon winds we get in Arizona. Is it common practice to nail down the exposed edges or corners of shingles to prevent further loss? If not, what is the right way to replace shingles and prevent loss?
Old 08-04-02, 04:46 PM
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Wind damage

"Wind Damage: Roofing materials are subject to damage from strong winds and flying debris. Generally, roofs are not designed to withstand winds of hurricane and tornado intensity. However, roofs may also be damaged by winds of moderate intensity, with gust that may reach 50 to 75 miles per hour. The primary cause of wind damage is from the partial vacuum created by wind blowing over the edge of the roof. Nature tries to neutralize the low-pressure area by bringing in air from a higher pressure area, usually from inside the building. This air pushes up on the bottom side of the roof assembly and, over time, loosens fasteners and breaks the adhesion making the roof susceptible to damage from the next moderate or strong wind. To counteract the effects of wind-uplift forces, the roofing and insulation should be adequately fastened to the roof deck, and a securely-fastened perimeter detail should be provided." Typical Causes of Roof Problems. Roof Repairs. RoofHelp. Retrieved 04 August 2002.

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