Roof Plank Sheathing

What s roof sheathing made of.

Roof plank sheathing.

The plank problem typically sheathing problems are isolated to small areas but old plank sheathing presents more of a challenge. Zip sheathing is a pretty hot topic with some differing opinions. Sharp roofing is seattle s roof repair and replacement experts. 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.

Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Your roofer will attach your shingles to these squares or planks of wood. 8d ring shank nails should be used instead. The typical thickness range for sheathing is 3 8 to 3 4 inch.

Roof sheathing is usually made of either oriented strand board osb or plywood. If you re replacing your cedar shakes roof check out our discussion of re sheeting over skip sheathing. Until the 1940s exterior grade plywood was not available. Plank sheathing usually 1 6 or 1 8 was used as a roof deck before plywood.

Both materials are made of. Roof sheathing also known as roof decking is a strong layer of wood boards that are fixed to your roof s joists and trusses. Again if this type of decking is discovered during the tear off of the roof shingles a thorough inspection must be made to make sure that it is in good overall condition and that the gaps between the individual. So anytime your board decked roof is torn off and you want to install composition shingles be sure to lay down solid sheathing first.

In the first half of the 20th century roofs in missouri were built with wood shingles over planks spaced about 1 apart. Was your roof originally built with shiplap. Call us today for a free estimate or roof inspection 206 367 7663 or fill out our contact form here. On older homes planks were often spaced for wood or slate roofs with wider exposures than the standard 5 inch tab on asphalt shingles.

The zip system is a structural sheathing intended for walls and roofs with an osb base and wrb weather resistive membrane which is basically a mesh that is attached to an osb sheathing panel with a paint applied. Sheathing should be a minimum of 19 32 inch thick. Roof decks on homes built before 1970 are often 1 8 fir pre plywood shiplap. Typically plank decking material is either 1 x6 or 1 x8 lumber.