Roof Sheathing Nails Over Skip Sheathing

It is relatively common practice to lay new sheathing over old.

Roof sheathing nails over skip sheathing.

If the current roof sheathing has only 3 8. After you strip the roof do spot repairs to the existing sheathing where needed then go right over it. Nails pulled out of decking. Although i don t think installing new plywood roof sheathing over the old would be a grave mistake.

You ll want to use both longer sheathing nails and longer roofing nails. Wood shingle and shake roofing is best applied over open sheathing because the spacing between the open sheathing allows the roofing to breathe from both sides prolonging its life. Osb or plywood over skip sheathing makes for a much stiffer roof deck resists problems with expansion better and obviously doesn t require all the hassle of removing it. Both are readily available and come in 4 8 foot sheets.

Composition and built up roofing must be applied to solid sheathing because these roofing materials do not have the structural capacity to span between the boards of open sheathing. It will be considerably more difficult to locate the rafters to ensure proper nail placement. If roof sheathing is cut and removed to achieve an air slot continuity and diaphragm action are affected. When the panels are attached over the.

Note holes should not remove more than half of the sheathing section note. Are recommended to avoid head pull through. Apa rated sheathing panels which include plywood and oriented strand board may be used for this purpose. 3 8 plywood can also be an option though it is not an option if there is not underlying skip sheathing or shiplap because it is not strong enough as a standalone sheathing.

3 inch nails should be used during application to ensure that it connects the new sheeting skip sheathing and rafters together for a reliable hold.