True, but unless you have a good idea what the current rating is, it's very difficult to say what the outcome will be. Unless you know an assessor, I very much doubt any will commit to give you an indicative rating without inspecting the house.BEF Before is not a requirement Leo, only after. If you were not sure you would achieve a C rating you might want an assessor to give you a view on that but a Formal BER isn't required.
See here for how the BER rating is assessed and calculated. The assessors have to inspect every element and use documentation or evidence you can provide or make an assessment as to the thermal efficiency properties of each. The DEAP software then calculates a rating on all that.What does the BER assessor actually do when he/she calls to your home. If you purchased a Thermal Leak Detector for about €50, could you not do most of the work yourself?
You're right, you certainly don't need a BER to highlight the obvious, and most people get BERs because they have to for various reasons (selling, renting. availing of grants). This guide will help prioritise the spend for many of the common house types here.I think if I paid €600 to be told that I needed thicker insulation in my attic, beads inserted in the cavity walls, new windows, internal or external wall insulation.....I wouldn't be impressed.
The 2ins aeroboard will still be there in the cavity. I cannot see the logic of drylining the same inside walls, and also pumping insulation into the already insulated cavity.Many thanks.I will not be paying €600 for BER. A while back I paid €400 for an air test.A total waste of money.I had planned to pump cavity walls .Therei is already 2 inch aero board insulation from 1989. I had also planned to dry line internal walls .All of which should raise my BER rating ( whatever it is).Should I concentrate on this first before considering solar panels.
Excessive, in my opinion and may not impact on the BER rating at all.Just trying to increase the insulation of the external walls.A friend of mine with a recent build in the last 6 years.had 6 inches pumped into cavity and dry lined the external walls of the house.
Yep, and perhaps introduces a significant problem if the dew point ends up within the wall creating perfect conditions for a mould infestation.Excessive, in my opinion and may not impact on the BER rating at all.
Not specifically doing it to increase BER but to increase insulation of existing walls.While 1.5 inch aero board was standard insulation back in the 1980’s build.I put 2 inch in back then.If I want to improve on wall insulation I see this as only option unless I opt for the more expensive external insulation.How else do I improve on wall insulation.Icannot undo the lack of floor insulation as it was not done back then.Excessive, in my opinion and may not impact on the BER rating at all.
We used 50mm (62.5MM) PIR insulated plasterboard for the walls.How else do I improve on wall insulation
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