As to the chipping of trusses or decking shearing.
Slate roof mistakes nails too long.
Overly long nails used to fasten field slates may blow out the underside of the roof sheathing at each fastener penetration diminishing the holding power of the nail.
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Nail length should be twice the thickness of the slate plus 1 when using a 1 roof deck.
So if i assume 1 2 osb sheathing i should be able to cut the nails off with 1 4 still sticking through the sheathing into the attic.
If you wait too long before getting a slate roof repair you could be setting it up for more problems in the long run and it will be both expensive and time consuming.
If a 1 1 4 roofing nail catches the edge of the sheathing it may also catch the edge of a truss and crack or chip either one.
Any homeowner would be horrified to find out that they need a roof repair but it is still necessary to have it done.
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On the other hand your roofer screwed up by using too long of a nail on your soffit over hang.
Looking at a 2005 tile roof installation manual it looks like the minimum penetration of a roofing nail into roof sheathing was 3 4.
Slate roof mistakes strap repairs.
Slate roof mistakes nails too long.
Also nails shouldn t be driven into or above the self sealing strip.
You should use at least four nails per shingle and raise that minimum to six on roofs with steep grades.
This is normal especially on older houses.
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Shingles can slip down if they aren t nailed correctly or if too few nails have been used.
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