PDA

View Full Version : What type fastener is best for 3/4" CDX on roof trusses


retiring2texas
Sep 3, 2009, 06:01 AM
I am reviewing bids for installing roof trusses on my ICF walls.

They will also put up the decking.
They intend to use roofing staples.
I asked them what type fasteners will be used to attach the 3/4 plywood roof decking.
They answered it will be 1 1/2'' x 7/16'' roofing staples

Any comments.
I had always used galvanized ring shank nails.

hkstroud
Sep 3, 2009, 06:10 AM
I'm with you. I think I would demand at least 6 if not 8d galvanized nails. A 1 1/2" staple through 3/4" plywood only gives you 3/4" into the rafter.

21boat
Sep 3, 2009, 04:39 PM
We also use 8d ring shanked nails. The staple is for shingles at best. I use coils roofing nails for shingling.
WHY 3/4 sheeting for the roof? I never used anything but 5/8 sheeting with truss 16"oc. Are the truss 24" OC ?
Also don't forget there needs to be the metal double U clips between the sheeting each truss bay so ply doesn't buckel and ripple the roof.

retiring2texas
Sep 3, 2009, 08:48 PM
It will be 24" OC trusses.
25 psf roof dead load with clay tiles.
Plywood clips, roger that.
This bid was $4500 labor for 3 days effort, plus they pay for crane and install trusses and CDX.
I get the plywood and trusses.

21boat
Sep 3, 2009, 11:20 PM
Hi tex, The 3/4 makes sense now. The clay tiles are they the real McCoy or the manufactured ones?

Get three bids to compare. I don't know the roof pitch ans Sq ft.

A bit confusing here.

This bid was $4500 labor for 3 days effort, is that the guessed time to install?

I don't know the size of roof here but it sounds OK to a point, I would not allow staples to hold sheeting down ever.

Get 2 more bids to check price here.
The other thing I see missing here is roof felt and what pound. Code here is 30lb felt. Old days 15lb was fine I do wonder of overkill. I think its more for safety walking the roof shingling and not tearing as quick and loose footing. Other then that 15# has worked fine for as long as I can remember

retiring2texas
Sep 4, 2009, 06:02 AM
21boat,
My house is shaped like an L with 3 roof sections all 6/12 gables. The vertical of the "L" is the bedrooms and kitchen, 9'4" plate height,20 x 64. 33 trusses, The short horizontal of the " plate height,20 x 64. 33 trusses, The short horizontal of the " is family room,10' plate height,20x30, 16 trusses. In the corner of the L is a tall open ceiling dining room, 20 foot plate height, 16x24. 13 trusses.

He said 3 days effort most likely. They don't do the roofing underlayment. But I already have materials for that. Google "Delta Titan maxx" is family room,10' plate height,20x30, 16 trusses. In the corner of the L is a tall open ceiling dining room, 20 foot plate height, 16x24. 13 trusses.

He said 3 days effort most likely. They don't do the roofing underlayment. But I already have materials for that. Google "nelskamp nibra d 10".

I am trying to get other bids. Some folks just don't respond...

21boat
Sep 4, 2009, 04:05 PM
Another thought here Are you ordering the gable end truss already sheeted in. If not do it much easier then on the job site.


They don't do the roofing underlayment. That's a bit odd. We get that on as quick as possible in case of rains that may come in before the rest of the roof goes on. Beats tarping.


I am trying to get other bids. Some folks just don't respond...

Hard to believe in today's economy when work in the trades is very scarce

If they figure 3 days then its close. A day max to set truss 2 days to sheet in max. depending on the amount of men Labor here is around $35.00 per hr min