NotGotAClue2023
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Never heard of that - sounds like they're looking for extra work to me. I'd get someone not from the company to do the survey..Hi there. My parents applied through the warmer homes scheme to have their house wrapped. Someone from the company came out today to survey (2nd one) and said that they needed to have the bottom of the house pumped before they will wrap it.
Cavity must be filled, otherwise you'll allow the heat escape up through the cavity rendering the external wrap pointless.Never heard of that - sounds like they're looking for extra work to me. I'd get someone not from the company to do the survey..
Thanks - didn't know that!Cavity must be filled, otherwise you'll allow the heat escape up through the cavity rendering the external wrap pointless.
Same until not so long ago myself. When I read it though it made complete sense as the top of the cavity is was always left open to allow for ventilation. That ventilation would just give an easy exit for any heat that made it that far.Thanks - didn't know that!
The question to be answered is if the cavity is already insulated properly (cwi) then why add external insulation (ewi) outside it.Does it make sense to fill the cavity then also add external insulation, cannot imagine much heat is going to make it through the two leafs of the wall and the cavity fill insulation to the external stuff? Or is this a special case where only part of the house is a cavity wall so it makes sense?
I'm familiar with that, thanks @Leo. It doesn't go into much detail on air tightness which seems to be an area of expertise of @Micks'r . To be honest I am in a position to spend tens of thousands on an upgrade (including external insulation) but I don't know if it would be worth it. I'd consider all options and might post a series of updates here for people in a similar position, once I get advice on how best to proceed.This document is nearly 10 years old but gives good details of typical construction methods used here over the years and some of the measures that could be applied to improve performance.
If it's a heat loss survey type of energy audit you're after then I can definitely help you. I assume you are in Kilkenny / Carlow area?@Micks'r, I'm living in a (hard to heat) mid-sixties bungalow in the south-east midlands. Would you know a good person to do an energy audit and give me pointers on how to get the best bang per buck when it comes to an upgrade? Happier to communicate in another setting. Thank you.
Thanks, yes indeed. Not sure how to proceed now, don't know if we can message each other here. Can provide an email or a phone number if I have to...I assume you are in Kilkenny / Carlow area?
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