Size of Roofing Nail???

[bhartley (Buck Hartley, CMI)]

This was found at today’s inspection, this is the size of roofing nail found used to nail down the shingles.

Thank you, for you input in advance. I will show you the roof later.

[mboyett (Michael Boyett, TREC #7290 (Ret) Boerne, TX)]

…

Fasteners for asphalt shingles shall be galvanized steel, stainless steel,
aluminum or copper roofing nails, minimum 12 gage [0.105 inch (2.67 mm)]
shank with a minimum 3/8 inch (9.5 mm.) diameter head, ASTM F 1667, of a
length to penetrate through the roofing materials and a minimum of 3/4 inch (19.1
mm) into the roof sheathing. Where the roof sheathing is less than 3/4 inch (19.1
mm) thick, the fasteners shall penetrate through the sheathing. Fasteners must
comply with ASTM F 1667. Staples are not permitted for shingle application
unless specifically noted in the manufacturer’s installation instructions on the
shingle package. Use 4 nails for standard installations, 6 for steep slope or high
wind areas.

[bhartley (Buck Hartley, CMI)]

Mike,

The nails never penetrated the sheathing.

[mharris6 (Mitch Harris, CMI)]

Buck,

I’ve seen the short nails used when shingling over an open eave where the bottom of the roof deck shows from below, on the exterior they seemed to hold fine, the rest of the roof was done with 1 1/2" nails.

[bhartley (Buck Hartley, CMI)]

Would you say this roof was nailed correctly?

[cbrown1 (Carl A. Brown)]

What part of town did you find that one in Buck?

How old is it?

Is it a re-roof?

[bhartley (Buck Hartley, CMI)]

Carl,

It is in a rural area, new roof 4 years ago. The big storm Friday night did not help anything.

[cbrown1 (Carl A. Brown)]

Those winds were something else.

[badair (Barry Adair, EIFSTX#39)]

@bhartley

Carl,

It is in a rural area, new roof 4 years ago. The big storm Friday night did not help anything.

helped identify shoddy work and earned you a check, see the last part of my signature

[jwicklander (Jeffrey Wicklander)]

Were those tabs installed properly? It looks like the top layer was brought down on the bottom layer just barely enough to touch the glue strip.

Jeff

[cbrown1 (Carl A. Brown)]

And they probably set their nails too deep with the coil nailer. It looked like the wire was on the nail picture that Buck posted.

[jwicklander (Jeffrey Wicklander)]

@cbrown1

And they probably set their nails too deep with the coil nailer. It looked like the wire was on the nail picture that Buck posted.

I think that was just residue from the fiberglass.

[badair (Barry Adair, EIFSTX#39)]

@cbrown1

And they probably set their nails too deep with the coil nailer. It looked like the wire was on the nail picture that Buck posted.

bingo! dead-eye :D:D:D

[jwicklander (Jeffrey Wicklander)]

aaahh, I see it now after a closer look.

Jeff

[cbrown1 (Carl A. Brown)]

So it is true what they say!

Size and penetration does matter!!

[bhartley (Buck Hartley, CMI)]

Carl,

It is a piece of wire on the size of the nail.

[cbrown1 (Carl A. Brown)]

The wire is what holds the nails together in the coils for the air nailer.

[jkogel (John Kogel)]

Just for the record, the length of the nails was probably not an issue…they’re still there, while the shingles tore loose around the nailheads.
Sometimes the nails are fired in on an angle, tearing the asphalt. :mad: If not, then they went in too deep and/or the glue strips failed as pointed out above.

John Kogel
www.allsafehome.ca

[dvalley (David Valley, License #566 - CMI)]

@bhartley

Would you say this roof was nailed correctly?

Is this home in a high wind area? If so…they should have applied a hand-tabbing of tar adhesive to the underside of these shingles and better nailing than commonly practiced would have helped. Too late now…

[dhelm (David E. Helm)]

For my own purposes, I always require high wind nailing (6 nails per shingle as opposed to 4) and all nailing is to be done by hand. I would never hire a roofer who uses gun nails on a roof; and the length, at least locally for a new roof (single layer) is 1 1/4 inches.