Sure, been done that way for decades and will probably carry on, nevertheless it is not a fire certified method and may fail in the event of a fire.
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Building Control: Numpty First Time Questions
- Thread starter asnoop20
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It's already been described in this thread.
Described? I could describe you as having six legs. It won't make it true, no matter the description. Your arguments are nonsense.
You stay ignorant, you can't find a fire test proving your method works though can you? Why do you think that is?
Your bollax about a beam twisting as much as you suggest, means it would affect ANY fixed plasterboard.
You still don't get it.
I'm trying to understand, but I don't get it either.
Timber fitted into the web of a steel beam can (when heated during a fire) twist, bow and bend at a different rate to the steel beam it was once neatly fitted to.
So now you have two materials that were once perfectly aligned are now fighting against each other, inside a tightly fitted plasterboard surround.
Now consider the screws holding the plasterboard against the timber, are hundreds of degrees celsius. The threads of the screws where embedded in the timber are now burning the timber, if those screws lose their grip and fail and pull out, then the plasterboard can become detached from the beam and the protection is lost.
So now you have two materials that were once perfectly aligned are now fighting against each other, inside a tightly fitted plasterboard surround.
Now consider the screws holding the plasterboard against the timber, are hundreds of degrees celsius. The threads of the screws where embedded in the timber are now burning the timber, if those screws lose their grip and fail and pull out, then the plasterboard can become detached from the beam and the protection is lost.
This is a bad one from freddie. He has disappeared down the rabbit hole, that's for sure. I could understand him griping about bashed in nogg's but not bolted timber.
Oh dear noseall, I've been speaking about this on the forum for a couple of years, since Grenfell and the subject received much greater scrutiny within the industry, you keep on ignoring the fact that no fire test exists that supports your old school and defunct method, just like you'll ignore it this time.
This is a curious thread! Steels set in the web is completely standard construction: how is the tinber going to fail when it's bolted into the steel?
The plasterboard is going to act as insulation,
Of course there will eventual failure if the fire lasts long enough but we seem to be losing sight of the fact that we're on;ly after 30mins.
Hmm, it seems the whole industry has missed a trick by not testing this and publishing the system as a certified method of encasing steel beams.
They haven't missed any trick...in the domestic house setting we are only concerned with premature collapse caused by fire which is what plasterboard installed in the proscribed manner delivers or even a coating of intumescent paint if exposed steels are your thing.
Premature collapse is when a structure fails to prevent the occupants leaving in an emergency. The entire focus of the building industry is the conservation of people not property.
Who gives flying stuff if the building subsequently collapses or requires rebuilding, people cannot be replaced, buildings can.
As building regs point out : "The purpose of setting a fire resistance period is to ensure that in the event of a fire within a building, the load-bearing capacity of the building will continue to function until all occupants have escaped, or been assisted to escape."
Here ends the lesson.
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