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dj1
Re: shingle roof

Using a torch is not a job for the DIY. The last thing you want is to burn down your house. The highly flammable part here is the tar paper.

You have a few options:
1. Do what the manufacturer says.
2. Wait till the summer to lay the shingles.
3. Use more roofing nails and don't use staples. Roofing nails will hold the shingles better.

Gizmo
Re: shingle roof

Is the nail pattern up to manufactures specs? There is a right and wrong way to nail shingles down

A. Spruce
Re: shingle roof
dj1 wrote:

U3. Use more roofing nails and don't use staples. Roofing nails will hold the shingles better.

Gizmo wrote:

Is the nail pattern up to manufactures specs? There is a right and wrong way to nail shingles down

These are the two primary reasons for roof failures, first and foremost, staples are used instead of nails, guaranteed failure right there. Second is the pattern. For low risk situations, 4 nails per shingle is acceptable, for high wind/snow risk situations, 5 nails per shingle is recommended.

As to the fastener, regardless of type, how it is driven is a key factor in failure. Staples, besides being inadequate, are frequently driven too deep, or at an angle, which turns then into a knife edge which cuts through the shingle with the slightest of breeze. Nails hold much better, even when slightly over driven, though ANY over driven fastener is likely to result in failure.

Yes, if the roof doesn't get warm enough to melt the glue and seal the tabs together, you've got a bit of an issue there as well, however, it doesn't take but a few hours of direct sunlight, above freezing to melt and start sealing the tabs down. Still, a properly driven nail will hold a shingle in place in moderate gusts and winds.

jkirk
Re: shingle roof

the staple thing is the truth. most regions dont allow staples to be used anymore.

location of the fastener is a very big thing, if your losing large amounts of shingles thats typicaly the tell tale sign that they werent properly nailed.. someone i know is having a house built as we speak and the roofer nailed about 3" to high which has little to no holding power.. they lost a good portion of the shingles on the roof

dj1
Re: shingle roof

I don't see how a roofer is going to nail shingles the wrong way, when the nailing instructions, with diagrams, are on the shingle wrappers. He doesn't even have to know English.

In high wind areas, use 5 nails on a full length shingle.

A. Spruce
Re: shingle roof
dj1 wrote:

I don't see how a roofer is going to nail shingles the wrong way, when the nailing instructions, with diagrams, are on the shingle wrappers. He doesn't even have to know English.

You would think, but I find nails placed too high and to low on a shingle all the time. I've seen nails as high as the top edge of the shingle - worthless, and as low as into the visible portion of the shingle - also worthless as this is a leaker waiting to happen.

Gizmo
Re: shingle roof

Shingles that blow off usally have to do with the nailing. Architectural shingles are laminated together. The nail pattern specs are designed to be nailed into the laminated area because the shingles are thicker in that area and has more hold down power to get a 130 MPH wind rating. Just because shingles are rated for 130 mph doesnt mean they wont blow off. IMO the ratings have to do with nail patterns,roof pitch rise/slopes and which area gets the hotest from the sun to seal them together. Some of the Owens Corning Architectural shingles has a woven nylon fabric along the nail pattern for additional holding power.

Im not so sure there is a difference between nails or staples for holding power. I prefer nails myself. Manufactures specs suggest nails over staples though.

Roofing was never part of my gig. It was much easier to hire it out.

toconnor
Re: shingle roof

Thanks to all of you that answered. Down the shore the code is six nails per shingle, no staples were used . The height of the nails is a different story. I will check on that and get back to you.

jkirk
Re: shingle roof

its quite easy for a roofer to not nail where their supposed to.. quite a few roofers work for builders that pay out next to nothing.. they just pay out based on the # of squares the roof is.. so these guys work extremely fast and pay little or no attention to detail.

toconnor
Re: shingle roof

Thanks for getting back

The new roof is up .....again

I went up and torched it myself,only took a couple of hours.

Just had 40 mph winds and they all stayed down.

Got my fingers crossed

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