DIYbanter - View Single Post

[email protected]

wrote:
Hi,
A friend of mine is having cavity wall insulation done. She had a
company come in to get an estimate and she was told that as she had an
open fire she would have to pay an extra £60 for the installation of a
core vent. When she questioned this she was told that it was the law.
Could someone tell us if this is the case or if the guy was just trying
to get the most out of her.
Thank you for your help.

I'm guessing here, but I would think he is reffering to the need to
have a vent in the room to provide air so the fire can draw properly.

I wouldn't be at all surprised if it was a building regs requirement
(we were told we would need something similar for our wood burner
(though in the event the co forgot to fit it, and we didn't remind them
(it draws fine))

If this is going into a cavity wall either as a new fit or to replace
an existing vent, then £60 doesn't sound too bad if it includes supply
and fit (especially if they have to start from scratch).

It will I presume need to be built like a tunnel through both walls.
Don't understand why this doesn't count as bridging the gap and
potentially cause damp problems, then again I don't understand why
cavity insulation doesn't do that either.