Over spaced board roofs number p300c january 2006 when replacing roofing it is often necessary to cover spaced boards with a solid roof deck.
Roof sheathing nails over skip sheathing.
It is relatively common practice to lay new sheathing over old.
If roof sheathing is cut and removed to achieve an air slot continuity and diaphragm action are affected.
Apa rated sheathing panels which include plywood and oriented strand board may be used for this purpose.
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.
If the current roof sheathing has only 3 8.
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.
Note holes should not remove more than half of the sheathing section note.
You ll want to use both longer sheathing nails and longer roofing nails.
After you strip the roof do spot repairs to the existing sheathing where needed then go right over it.
Are recommended to avoid head pull through.
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.
It will be considerably more difficult to locate the rafters to ensure proper nail placement.
When the panels are attached over the.
Although i don t think installing new plywood roof sheathing over the old would be a grave mistake.
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.
Both are readily available and come in 4 8 foot sheets.
Nails pulled out of decking.