Loft Conversion Roof Insulation Building Regs

Obviously as ognum has mentioned a loft conversion is a more serious change and building regs for lofts have been updated quite a bit in the last 20 years so i d expect your cost to be higher but the structural engineer will give you a much more acurate figure.

Loft conversion roof insulation building regs.

The limiting u value the maximise u value which cannot be exceeded required under current building regulations for the roof is 0 20w m. 4 1 full plans application this is often thought of as the traditional way of applying for. It is not possible nor is it intended that this booklet should cover every aspect of the design. Inadequate insulation will cause your property to lose heat and rely more on your thermostat to remain warm.

These are expressed as a u value which needs to be achieved. Care should be taken not to block any ventilation at the edges eaves. Again this should be insulated to the recommended depth of 270mm. With current building regulations requiring a u value of 0 18 in the roof the cost of a loft conversion can quickly begin to add up.

Building regulations for insulating a roof heat rises and therefore the building regulations requirements for heat loss through roofs are more stringent than those for walls. In any construction it is important to control costs. In england the required minimum u value for pitched roofs insulated at rafter level is 0 18 w m k whilst for flat ceilings the minimum is 0 16 w m k. Building regulations standards set the levels of thermal insulation required when carrying out building work either for new build or refurbishment projects.

Currently building regulations for loft conversions dictate that the u value of the roof must be 0 18w m2 or lower. When refurbishing an attic or loft space there is a requirement to comply with the appropriate building regulations standards for the location of the building. There are two methods of making a building regulations application as follows. If you are installing loft insulation as part of a roof renovation project where more than 25 per cent of the roof is being renewed then the level of insulation should meet the standards required by building regulations approved documents.

Building control guide to loft conversions 5 4 0 obtaining building regulations approval loft conversions must comply with the building regulations. 3 loft conv rev 2 2007 1 introduction 1 1 this guidance booklet considers the extension of a typical 2 storey dwelling into a 3 storey unit by the addition of a loft conversion within the existing roof space. Nick an experienced loft converter in norwich needed a cost effective solution for insulating his clients loft conversion.