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Insulation

Building regulation requirements attic conversion Insulation between the roof & rafters

Anonymous user 15/03/2024 - 2.36 PM

We have had our attic converted into a bedroom and ensuite. There is a low wall which has 2 hatches built into the wall. We have noticed that there is no form of insulation between the roof tiles and rafters & you can see daylight coming from the gaps behind our roof tiles. There is a very cold draft coming from this area & making our bedroom freezing to live in even with our heating on. Just to add we have had our roof tiles removed & replaced with new tiles. There is 2 very small patches of felt directly where the hatch doors are. Numerous builders & contractors based within this field, have advised us that the company who have done our attic conversion have not complied with building regulations, as they have created our loft into a habitable bedroom without insulating the roof. Please could someone confirm whether the company must insulate between the roof & rafters. As well as this we have had numerous issues with this company which has caused us to pay additional contractors due to leaks & shoddy carpentry & they still have not finished numerous jobs. This started in August & we are at 4 months now, when we were promised 5 to 6 weeks which we thought would be very ambitious. Please can anyone help us advise who to contact to ensure we have not been ripped off.

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3 Answers

Anonymous user

did you not pay for a building inspector to check all aspects of the conversion was to regs.. I have just completed a loft conversion to regs and our architect and building inspector required me to put 50mm of kingspan insulation inbetween the rafters and over draw that with a further 100mm and this was from the ridge all the way to the eves... you could contact your local building inspector and ask them to take a look all though it would be at a cost..

Answered18 December 2017

ADR Property Maintenance

Rating: 5 out of 5

Boston

you can contact your local building control officer & see if its been signed off or if its up to current regs insulation wise, you do need some air flow in your remaining loft space to prevent dampness. good luck alex

Answered18 December 2017

Nots Renovations

Rating: 4.9 out of 5

Sutton In Ashfield

The short answer is , yes , between the rafters should be insulated with a 50mm air gap from eves to eves , and it should have a total.of 150mm celotex , generally the existing roof rafters have to have new additional timbers screwed to them to get additional depth of 150mm , then 100mm celotex installed leaving the 50mm as the air gap , then the rafters under drawn with a further 50mm of celotex , if your roof is not insulated it definitely is not built to building regulations standards and therefore is not habitable Regards Daniel

Answered13 November 2020