tegwin
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| posted on 25/11/20 at 06:18 PM |
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Cavity wall with insulation.
The new regs imply that if you refurbish a wall inside or outside Eg re plaster... you are supposed to increase the thermal efficiency of that wall by
quite some margin not simply replaster.
In this instance as someone has pointed out it’s not economically or logistically possible to do much as the rooms are so small to start with.
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Sam_68
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| posted on 25/11/20 at 07:15 PM |
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quote:
Originally posted by tegwin
Cavity wall with insulation.
If you have cavity walls with insulation, are you sure you need to upgrade them, anyway? What exactly is the current wall build-up?
Notwithstanding the test of 'technical, economical and functional feasibility', the Regs only require you to upgrade the thermal element
(in the case of a cavity wall) to U=0.55.
I had assumed from your original description of needing 50-100mm. of internal insulation that we were talking about a solid brick wall.
If you already have an insulated cavity wall, it seems very unlikely that you'd need to do anything, anyway.
Have you pissed off the BCO? He ought to know perfectly well both the test of reasonableness and the implications of the required U-value, so if I
didn't know better, I'd suggest he's on a deliberate wind-up.
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nick205
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| posted on 26/11/20 at 01:19 PM |
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tegwin / OP
If you have to achieve this U value is there anything you could do on the exterior of the building?
I appreciate you'd need to be in keeping with adjacent properties, but it could be another way around the issue.
Alternatively are you allowed to request a different officer? Sometimes a different set of eyes and ears can help view things in a more realistic
way.
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