Roof Plank Sheathing

They can be of several configurations.

Roof plank sheathing.

Open spaces form between the once tightly fitted shiplap boards. The issue guertin explains is the gaps between boards. Click to enlarge wood plank decks being found in low sloped pitched and even curved surfaces can take many forms. After the 1960s the predominant residential roofing substrate became 1 2 cdx plywood.

Today a shiplap roof is usually 60 years old. Figure 1 consultants are likely to encounter wood planks on older structures. The plank problem typically sheathing problems are isolated to small areas but old plank sheathing presents more of a challenge. Your roofer will attach your shingles to these squares or planks of wood.

Over time shiplap fir wood resin dissipates causing the boards to shrink crack form knot holes and become extremely brittle. Hello everyone i come across many roofs like this with space sheathing people that don t know about roof specs think you need to install. As the boards to do the roof deck were manufactured here in the northwest it was still more economical than plywood through the 60s. Here a barrel type roof is undergoing restoration and the original board sheathing is being preserved.

Spaced or skip decking many older homes in older. Without these many of the nails used to install the shingles will fall between the sheathing and the first wind storm will blow your shingles off. Plank decking in older homes plank decking may have been used for the roof decking substrate. Plank sheathing usually 1 6 or 1 8 was used as a roof deck before plywood.

Roof sheathing is usually made of either oriented strand board osb or plywood. Exterior grade plywood was not available until the 1940 s. If your home was built prior to 1970 there is a good chance it will have board sheathing. Can a roofer determine the state of my decking before starting the roof replacement.

What s roof sheathing made of. If you have spaced or plank sheathing osb or plywood will need to be added to completely cover the roof. Even if we filter it down to board sheathing only there can be square edges shiplap edges spaced decking and the ordinary tongue and groove that. In the first half of the 20th century roofs in missouri were built with wood shingles over planks spaced about 1 apart.