How thick should loft insulation be Scotland?
How thick should loft insulation be Scotland?
270 mm
The recommended depth for loft insulation is 270 mm for glass wool, 250 mm for rock wool or 220 mm for cellulose. Remember to insulate the pipes and water tank. Insulating between the joists of a loft will keep a house warmer but make the roof space above colder.
What is the building regs for loft insulation?
Where there is currently no insulation in the roof space, you will need to provide thermal insulation to achieve a U-value* of at least 0.16W/m2K. This is typically 250mm of a mineral wool loft insulation roll, for example.
Can you have too much insulation in your loft?
As long as you ventilate your property properly, you can have as much insulation as you like within reason. The trick with loft insulation is to balance the amount of insulation you have with the amount of ventilation necessary to prevent damp. As long as you get that balance right, you should be fine.
Do you need building regs for adding insulation?
Making significant changes to thermal elements (walls, roofs or floors) would normally require Building Regulations approval and require the thermal insulation of the element to be upgraded to a reasonable standard.
Can you use cavity wall insulation in a loft?
cavity wall insulation! A cavity wall is made up of two layers, with a small gap in-between. Technically, you could use some form of cellulose or similar blown-in insulation material with this process. But we do not recommend doing that, as loft insulation materials are most effective when used in the loft.
How thick should loft insulation be?
250 to 270 mm
The recommended depth of blanket style insulation (glass or mineral wool) for a loft is 250 to 270 mm. If you already have insulation, but it was put in some time ago, it is worth checking the depth, as only a few years ago the recommended depth of insulation was 200mm, and before that it was as low as 100mm.
Can you put too much insulation in your loft?
