Part of the reason construction contractors use nails is that they are significantly cheaper to use than screws.
Roofing scew instead of nail.
30 000 seconds is 8 3 man hours of work a man day.
Sounds like the removal of wood tissue during.
A nail gun will drive a nail as fast as you can move the gun into place and slap it against the wood.
It s true that screws have a highly effective withdrawal resistance which makes them excellent fasteners for tasks such as avoiding squeaks.
On asphalt shingles you want to use roofing nails.
Less concern about rusting out and they hammer or drive in easier.
Drive 10 nails or 10 screws who cares.
This means you have saved 30 000 seconds.
Leaving the shingles free to blow off the roof during the next wind storm.
07 27 2007 06 42 am 5.
Roofing nails are not made to withstand the structural forces that are required for joist hanger connectors.
Let me caution you a decent sized roof that is screwed down rather than nailed down will take 20 times longer to do than with a nail gun.
At one time nails were preferred over screws because it was much easier and faster to hammer in nails than to use a manual screwdriver or spiral ratcheting screwdriver e g.
When to use each fastener understand the pros and cons of these popular fasteners so you ll pick the right ones for all your home improvement and woodworking projects.
According to home depot a five pound box of 8 penny nails which are approximately 2 5 inches long is 12.
When using nails or screws for construction my preference is hot dipped galvanized spiral nails or acq rated deck screws.
If like me you use predrilled holes with the head counterbored and thus three differant size drill bits plan on each rafter taking a couple of days frenchy counterbored screw holes on roof sheathing.
The cost of the nails vs screws in construction is an entirely different story.
Also spiral shank nails are easier to remove than ring shank nails when i make a mistake.
Roe osborn a senior editor at jlc responds.
There is a common misconception in the building industry that screws always outperform nails when attaching wood to wood.
Can screws be used instead of nails for attaching wall sheathing to framing.
Instead of using standard deck screws to install hangers consider using specialty screws.
The use of roofing nails as structural attachments for joist hangers is not uncommon however it should be avoided.
The reason is simple roofing nails have an oversized head which gives them much greater holding power than a regular nail or screw.