Fasteners for furring over 1.5" rigid exterior

1038 Views 7 Replies 6 Participants Last post by Nealtw, Mar 18, 2020

NickWa

Discussion Starter · Mar 11, 2020

Getting materials and costs sorted for exterior house project this year. Will be doing:

wall framing -> 1/2 OSB -> 1 1/2" rigid foam -> 3/4 furring strips

I believe I need 4" fasteners (2 3/4" + 1 1/4" depth into stud) but not sure the type. I would like to avoid pre-drilling if possible.

Can I use regular #10 x 4" wood framing screw? If not, would GRK R4 multi-purpose star drive screws be OK? Headlok are so expensive I would like to avoid if I can.

Thanks.

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NickWa

Discussion Starter · #2 · Mar 12, 2020

Bump bump

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Bud9051

· #3 · Mar 12, 2020

Good morning Nick. Just joining your bump but nothing special to add. I've used ring shank nails on strapping but not that long, their hold is amazing.

I use exclusively torque head screws when I need screws.

Do you have a nail gun? If so, consider galvanized 4" nails. They also hold very well and i agree with the 4".

Others will be along.

Bud

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NickWa

Discussion Starter · #4 · Mar 12, 2020

Bud9051 said:
Good morning Nick. Just joining your bump but nothing special to add. I've used ring shank nails on strapping but not that long, their hold is amazing.

I use exclusively torque head screws when I need screws.

Do you have a nail gun? If so, consider galvanized 4" nails. They also hold very well and i agree with the 4".

Others will be along.

Bud

Thanks Bud. I have nail guns but nothing that will handle longer than 3.5" I would be happy to nail with 4" nails (much easier than screwing), but don't even know if any nailers go that long?

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ClarenceBauer

· #5 · Mar 12, 2020

Check out this company.
Wind-Lock catalog.

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House Designer

· #6 · Mar 16, 2020

I think any 4" nails would split your 1x2 furring strips in a heartbeat. I'm afraid you'll need to pre-drill and use screws.

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carpdad

· #7 · Mar 18, 2020

Never used one before, but there are air nailers called jumbo nailers with 4" nails. Just found a site called nail depot.

I agree that 1x2 would be easy to split. Maybe use 1x3? And stay away from the ends and screw/hand nail there. Or set the nailer depth (if able) so the heads don't sink and hand sink them. Still be faster than the screws.

Maybe the pro rental stores carry them, with big enough compressors.

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Nealtw

· #8 · Mar 18, 2020

Up here we can buy 1/2" x2" treated plywood for strapping that doesn't split.
If that is not available you could still just rip your own plywood.

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