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Cavity Wall Insulation - How do I know?
wiggly
Posts: 292 Forumite
How would I know if this house has cavity wall insulation?
other than drilling through the bricks
other than drilling through the bricks
Trying to get on top of finances one step at a time
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Comments
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If you have access to the attic you should be able to see the top of the wall cavity.I used to be indecisive but now I am not sure.0
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you might be able to see holes that have been cemented up. when they did mine they used red brick colored mortar, and its fairly hard to see the holes.Get some gorm.0
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our loft has been boarded out so I'm not sure
but thanks, I'll go for a rummage Trying to get on top of finances one step at a time0 -
If you have an air vent in the kitchen or elsewhere take it off and you will see into the cavity.I'm Glad to be here... At my age I'm glad to be anywhere!!
I'm not losing my hair... I'm getting more head!!0 -
In our case you can tell because there are little piles of polystyrene (sp?) beads in corners where there was a hole in the wall! The understairs cupboard was two thirds full before the guys realised the wall was taking too long to fill :eek:0
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I would have thought the questionnaire that the previous vendor would have had to fill in and hand back to your solicitor before completion would reveal this point."Some say the cup is half empty, while others say it is half full. However, this is skirting around the issue. The real problem is that the cup is too big."0
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brilliant thanks everyone
Trying to get on top of finances one step at a time0 -
A solid wall is one brick thick unless the house is 3 or 4 stories high. A one brick this wall is 9" thick. Two bricks side by side are also 9" so a 1.5 brick wall is 13.5 thick. If your wall is 11" thick you probably have a 2" cavity in the middle to stop wetness soaking from outside to inside (allow a bit extra for the plaster and rendering if any).
As explained above, you can only tell if its filled if the filling points can be seen, if its been built in the last 25 years, if there is a hole somewhere or finally if you drill a hole. (The "surveyors" from the cavity insulation companies are expected to drill a hole to be sure to be sure, when they visit you)
My daughter bought a 1950's house and we did not realise that the cavities had been filled until I made her a new shower room. So you cannot depend on the bumph you get from the solicitor and estate agent! (The sellers did not even know, if they had they could have charged us an extra 250 GBP;) )
Would one of these new energy pack inspectors have realised - I doubt it the injection holes were so well hidden.
Harry.0
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