Roof Sheathing Nails Over Skip Sheathing

If roof sheathing is cut and removed to achieve an air slot continuity and diaphragm action are affected.

Roof sheathing nails over skip sheathing.

After you strip the roof do spot repairs to the existing sheathing where needed then go right over it. It is relatively common practice to lay new sheathing over old. It will be considerably more difficult to locate the rafters to ensure proper nail placement. Deformed shank i e ring or screw shank nails are required near ridges gables and eaves in areas with design wind speeds over 110 mph 3 second gust but it is typical layout of roof sheathing panels on gable end roof typical layout of roof sheathing panels on hip roof most critical area for.

Nails from sheathing to ridge board roof sheathing ridge board ridge board joist or truss joist or truss roof sheathing vent holes on each side of ridge board. 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. Over spaced board roofs number p300c january 2006 when replacing roofing it is often necessary to cover spaced boards with a solid roof deck. Although i don t think installing new plywood roof sheathing over the old would be a grave mistake.

Apa rated sheathing panels which include plywood and oriented strand board may be used for this purpose. Are recommended to avoid head pull through. 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. Note holes should not remove more than half of the sheathing section note.

Both are readily available and come in 4 8 foot sheets. 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. When the panels are attached over the. 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.