Solid Sheathing Metal Roof

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Solid sheathing metal roof.

It s an appearance problem and can cause litigation. Metal roofing panels rated for architectural use attached to purlins horizontal pieces of wood or metal fastened to roofing trusses are structurally sound when installed according to your roofing manufacturer s instructions and local building codes. In stock at store today. 1 x 6 roof decking doesn t qualify.

Installation of a new roof covering over an existing roof covering is only permitted if the roof decking is solid plywood or osb sheathing. The keyword here is solid it used to be standard to use shiplap 1 boards tongue groove or other boards for the roof deck. Bhp is one supplier i ve had experience with the problem is telegraphing of the purlins. R905 10 2 slope minimum slopes for metal roof panels shall comply with the following.

3 wide rib panel. But the lumber was not usually kiln dried. As roofing contractors in seattle we are often asked why do we need plywood over our old solid sheathing. When the roof was first nailed on of course all the nails were in solid wood.

Some standing seam roofing manufacturers normally require solid sheathing under their architectural type standing seam panels for a guarantee. Most you see on homes and many commercial building is non structural metal roofing and needs to be on solid sheathing. Prior to covering the existing roof if applicable a pre inspection to verify condition and a single layer of existing roofing is required. As wood dries it shrinks.

Sure metal could be noisier than other types of roofing especially during a heavy rain or thunderstorm but extra layers of solid sheathing or insulation installed beneath it will typically. These 8 to 12 inch wide boards were nailed together tight.