Roof Plank Sheathing

The plank problem typically sheathing problems are isolated to small areas but old plank sheathing presents more of a challenge.

Roof plank sheathing.

Here a barrel type roof is undergoing restoration and the original board sheathing is being preserved. Plank sheathing usually 1 6 or 1 8 was used as a roof deck before plywood. As the boards to do the roof deck were manufactured here in the northwest it was still more economical than plywood through the 60s. The issue guertin explains is the gaps between boards.

Plank decking in older homes plank decking may have been used for the roof decking substrate. 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. Exterior grade plywood was not available until the 1940 s. 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.

Open spaces form between the once tightly fitted shiplap boards. They can be of several configurations. Roof sheathing also known as roof decking is a strong layer of wood boards that are fixed to your roof s joists and trusses. Roof sheathing is usually made of either oriented strand board osb or plywood.

Solid sheathing most new homes built after the mid to late 80 s typically have solid roof sheathing. If you have spaced or plank sheathing osb or plywood will need to be added to completely cover the roof. In the first half of the 20th century roofs in missouri were built with wood shingles over planks spaced about 1 apart. Click to enlarge wood plank decks being found in low sloped pitched and even curved surfaces can take many forms.

What s roof sheathing made of. Spaced or skip decking many older homes in older. Your roofer will attach your shingles to these squares or planks of wood. Can a roofer determine the state of my decking before starting the roof replacement.

Figure 1 consultants are likely to encounter wood planks on older structures. After the 1960s the predominant residential roofing substrate became 1 2 cdx plywood. On older homes planks were often spaced for wood or slate roofs with wider exposures than the standard 5 inch tab on asphalt shingles. 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.