Roofing Nails Penetrate Soffit

Fasteners must be driven flush with the surface of the shingle.

Roofing nails penetrate soffit.

Now comes the roofing installation. Watch your head when your up there. The first thing that will happen here is the application of the building paper. Building paper can turn water if it happens to penetrate the integrity of the roofing material.

When i installed the roofing on my house i did the same thing and in hind sight i could have used shorter nails but the building code in my area wants the roof nails to penetrate at least 3 4 inches into the sheathing. A countersunk nail will rip the shingle and a nail that is not completely nailed down will eventually work its way out. This is a very thin black sheet that feels like a rough piece of wool. You need much more ventilation in the attic.

The condensation is caused by warm air leaking through the insulation between the top floor and the attic. However siding nail guns can t drive coil nails and need several refills for long duration jobs. To determine the nail length you should consider the number of layers of shingles shingle thicknesses underlayment and flashings installed on eaves sidewalls and valleys etc. The nails sticking through the roof sheathing is normal.

When installing roofing nails always make sure the nail is flush to the shingle. Roofing nails are made of galvanized steel to protect them from the elements. Your contractor is correct in his interpretation of the national roofing contractors association standards as well as the ohio building code which state that nails must be long enough to penetrate through all roofing materials and extend through the underside of the deck or penetrate a wood plank by of an inch even if that surface is less than inch thick. A fascia covers the front of a soffit.

Yes quite normal for roofing nails to penetrate. Roofing nails should be long enough to penetrate the roofing material and go 19 mm into osb solid wood plywood or non veneer wood decking or through thickness of decking whichever is less. Both these two types of nail guns pneumatic ones are run by low pressure air compressors. This is a quick process and then the roofing material is applied.

Ice dams and moisture can ruin fascia boards that run along a roof line. Fasteners should be long enough to penetrate at least 3 4 19mm into wood decks or just through the plywood decks.