cavity wall

[sliktor]

my house was built in 1934, semi with 5 bedrms. how can i tell whether there is cavity wall/

is there any point in having cavity filled for insulation. are there any problems with condensation etc?

lots of firms want to fill the gap!!!

 

[PrenticeBoyofDerry]

What material is it built in, as you can generally tell by the course work.

Link with course work explained
http://www.energysavingtrust.org.uk...How-do-I-identify-whether-I-have-cavity-walls

 

[sliktor]

i will check it out. unfortunately dark at present.

thanks for your advice

 

[stuart45]

Cavity walls were somtimes built in Flemish bond, and solid ones built in Stretcher bond so you will need to measure the thickness at the frame jambs as well.

 

[noseall]

Measure the window or door reveals.

 

[geraint]

Measure the window or door reveals.

so much simpler... and not having the rush to giving inane imformation...

 

[sliktor]

thanks.

have just measured = 250mm

I suppose could be solid wall with 3 bricks 2x4 inches and one sideways 2 inches which makes total 10 inches or 250mm ??

 

[Deluks]

If you want the work done get someone in, if there's no cavity they'll have to pack up and go home.
Their problem, not yours, if they have agreed to do the work without a survey.

 

[PrenticeBoyofDerry]

is there any point in having cavity filled for insulation. are there any problems with condensation etc?

lots of firms want to fill the gap!!!

There is a point as it reduces heat loss, therefore you can drop the regulated temp and the rooms should stay warmer for longer, saving you money in fuel bills.
It should also prevent cold walls, which is a major reason for condensation forming in non ventilated rooms.

Most of the installers will use the white wool. When the surveyor comes to your property, ask him if he has details of a BBA certificate.
In this certificate it states that tests for water resistance are carried out by the BBA. The product does not absorb water; dampness from the wall will not pass through provided the wall is in good condition.