I never see any mention of using adhesives like "No-nails" whe fixing floorboards to joists. Is there a reason? Coupled with hidden screws this would give a neat job.
- posted
17 years ago
I never see any mention of using adhesives like "No-nails" whe fixing floorboards to joists. Is there a reason? Coupled with hidden screws this would give a neat job.
The forces required to keep a board against another board and correct for inevitably untrue timber coupled with the forces occuring due to natural contraction expansion of the timber are just to great for glue. Nails or screw should be used of sufficient gauge and depth, and these are quite substantial.
=========================== If appearance is important you can use the hidden nailing method with T&G flooring.
Cic.
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Yes. Only a lunatic would glue floorboards down.
Can you be more specific. Is the problem in the traffic or the brittleness of old glue joints? There are flexible adhesives being used in many situations where they would have been dismissed years ago. I screwed & glued legs on a table 20 years ago & they are still solid.
The joists and flooring together function as a structural component. It's important that they're well coupled to each other, i.e. where every board crosses every joist.
Glue can produce strong joints where the joint is clamped up firmly. "Glue bridges" as would inevitably happen with the variable gaps between joists and boards, are not strong.
Exactly, tightly mechanically coupled joint + glue = strong joint
The important part being "screwed AND glued "
Although if buying shed boards be careful .The ones I got from Wickes to put under my bath said they could not be "secret nailed" .Not sure why .Maybe because they weren't as thick as timber merchants boards or maybe the tongue/grooves werent in the centre of the board .I've no idea
Stuart
Stuart wrote in news: snipped-for-privacy@4ax.com:
All of a sudden there was a loud bang on investigation it was found that his ledge and braced doors which he had lovingly glued together had split in two right down the centre board.
There had been no where for them to adjust to the drying atmosphere. the stress must have been phenominal Chris
So how do they do it on aeroplane wings, they stretch and waft (bend) about in the breeze a lot, and can cope with temperature extremes and expansion.
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