Help with room vents in TF house.

Do-more

Would someboby be kind enough to point me in the right direction for the detail in fitting 4" ventilation ducts for room vents in a timber frame house.

I need to clarify, AFAIK I need to box the 4" duct with timber but I'm not sure.

Any help greatly appreciated.

D-M.

Do-more

Can anyone help me out on this? Got to try and get the job done in the next few days!

muffler

Whats wrong with asking your architect or indeed the timber what ever its called suppliers?

Do-more

muffler wrote: »

Whats wrong with asking your architect or indeed the timber what ever its called suppliers?

I do hope you were drunk when you made this post, it hardly represents the true spirit of boards does it? Especially so coming from a mod.

muffler

Do-more wrote: »

I do hope you were drunk when you made this post, it hardly represents the true spirit of boards does it? Especially so coming from a mod.

That post was indeed made when I was full of the true spirits of the Rosses bar.

Never knew that a mod wasnt allowed to take a drink on a Saturday night.

Do-more

Do-more wrote: »

Would someboby be kind enough to point me in the right direction for the detail in fitting 4" ventilation ducts for room vents in a timber frame house.

I need to clarify, AFAIK I need to box the 4" duct with timber but I'm not sure.

Any help greatly appreciated.

D-M.

I would imagine that you would need to install them in such a way that you don't vent into the cavity.

Do-more

I never said there was anything wrong with taking a drink, that's your own business. Modding while drunk is probably not the best idea though.

Without wanting to go into too much detail, it's precisely because I have two conflicting opinions from two different engineers that I asked the question. I was hoping someone could give me a difinitive answer as my trawls through the building regs have proved fruitless.

Do-more

Deleted User wrote: »

I would imagine that you would need to install them in such a way that you don't vent into the cavity.

Thanks DB, that bit is clear and I know I need to install firestop around the vent duct as it passes through the cavity.

It's the timberframe portion of the wall structure that's the bogey. The question is whether I need to enclose the duct with a timber box or whether it's OK for the vent to just pass directly through the insulation?

I would say it's OK just to pass the vent pipe through, nothing structural there.

Mellor

Pass a 100mm pipe from room to external making sure that cavity isn't vented.

gsxr1

Mellor wrote: »

Pass a 100mm pipe from room to external making sure that cavity isn't vented.

Is there fire prevention needed when doing this in a timber frame?
Like a red fire bag stuffed around the hole before the 4" pipe is inserted.

Do-more

gsxr1 wrote: »

Is there fire prevention needed when doing this in a timber frame?
Like a red fire bag stuffed around the hole before the 4" pipe is inserted.

Yes you need a firestop around the ducting as it passes through the cavity.