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30-03-21, 09:31 PM | #1 |
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What do the org know aboiut cavity wall insulation?
I'm really umming and ahhing about cavity wall insulation at the moment. On the basis of it's fine now, without (thermally and dampwise) and everything I know about contruction (not a great deal) I would ordinarily avoid it. However I've got a real problem with neighbour noise travelling down the cavity (mid/high tones - I can hear crisp conversations, talking at regular volume and knives and forks etc) so I'm considering filling one flanking wall. It's not a particularly exposed wall and is rendered. What's org advice?
Also, question I should probably know the answer to: how do they stop the filling falling below the DPC and bridging the cavity there? Penetrating damp I'd consider running the risk with but not sub damp proof course.
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Last edited by Dave20046; 30-03-21 at 09:32 PM. |
30-03-21, 10:28 PM | #2 |
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Re: What do the org know aboiut cavity wall insulation?
On new build the insulation is held against the inner wall (plastic ties), there is an air gap between the outer wall and the insulation to prevent penetrating damp. It doesn't go below the dpc level either.
Can't see how anything insterted after the build could maintain a gap to prevent penetrating damp or avoid going below dpc level. Sent from an S20 using Tapatalk with that kin cr4p blocked
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Formerly known as Gajjii Previous Bikes: Red Sk1 Curvy, Red MT-07. Current Bike: Black MT-09. |
31-03-21, 10:35 AM | #3 | |
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Re: What do the org know aboiut cavity wall insulation?
Quote:
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31-03-21, 11:50 AM | #4 |
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Re: What do the org know aboiut cavity wall insulation?
my mates main business is sound insulation (noisy neighbours). the best way is to put a false wall up with proper insulation such as rockwool rw5. it wont get rid of it all but it will reduce it considerably.
cavity wall insulation is great if you get it done properly but most firms are run by gypos. i have had no damp problems with mine but i did and still do get ant infestation that came with the filling. |
31-03-21, 01:55 PM | #5 | |
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Re: What do the org know aboiut cavity wall insulation?
Quote:
The stud's done a good job but I'm unable to stud the adjacent wall (one with the cavity) and I'm worried as soon as it's boarded it will continue the problem there ,without other measures
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Last edited by Dave20046; 31-03-21 at 02:01 PM. |
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31-03-21, 07:29 PM | #6 |
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Re: What do the org know aboiut cavity wall insulation?
They offered cavity insulation to our estate several years ago ( they were very aggressive and told my wife that in future not having cavity insulation would mean you could not legally sell you house - which is BS ) and only a few took up the offer - the houses are only about 20 years old and already had expanded polystyrene battens filling half the cavity, these were fitted when houses were built. A couple of neighbours who had it done have said there has been no change to their energy bills, but houses are damper, with more condensation. The retrofit blown beads insulation are a really bad idea, they can end up with blocking up airbricks, areas within wall with no insulation which cause condensation. A workmate had cavity insulation about 10 years ago and he ended up with a massive damp problem that needs a dehumidifier running 24/7 to control.
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2016 SV650 AL7 Courage is resistance to fear, mastery of fear, not absence of fear - Mark Twain Last edited by SV650rules; 31-03-21 at 07:34 PM. |
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