Roof Plank Sheathing

Plank decking in older homes plank decking may have been used for the roof decking substrate.

Roof plank sheathing.

Roof decks on homes built before 1970 are often 1 8 fir pre plywood shiplap. The issue guertin explains is the gaps between boards. The typical thickness range for sheathing is 3 8 to 3 4 inch. So anytime your board decked roof is torn off and you want to install composition shingles be sure to lay down solid sheathing first.

Call us today for a free estimate or roof inspection 206 367 7663 or fill out our contact form here. 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 also known as roof decking is a strong layer of wood boards that are fixed to your roof s joists and trusses. Plank sheathing usually 1 6 or 1 8 was used as a roof deck before plywood.

Never attach roof sheathing with staples. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Typically plank decking material is either 1 x6 or 1 x8 lumber. In the first half of the 20th century roofs in missouri were built with wood shingles over planks spaced about 1 apart.

The plank problem typically sheathing problems are isolated to small areas but old plank sheathing presents more of a challenge. Sheathing should be a minimum of 19 32 inch thick. 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. If you re replacing your cedar shakes roof check out our discussion of re sheeting over skip sheathing.

Zip sheathing is a pretty hot topic with some differing opinions. Sharp roofing is seattle s roof repair and replacement experts. Until the 1940s exterior grade plywood was not available. 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.

8d ring shank nails should be used instead. What s roof sheathing made of. Roof sheathing is usually made of either oriented strand board osb or plywood. Your roofer will attach your shingles to these squares or planks of wood.