How many layers of loft insulation do I need?
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…
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.Click to see full answer. Likewise, people ask, can I insulate my loft myself?If your loft is easy to access and has no damp or condensation problems, it should be easy to insulate – and in most cases, it is possible to do it yourself. If access is easy and your loft joists are regular, you can use rolls of mineral wool insulation.Also Know, can you have too much loft insulation? 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. Again, as long as the loft has adequate ventilation, this is fine. Also Know, how do I add a second layer to my loft insulation? Loft insulation rolls are usually 1140mm wide, so you’ll probably need to cut it to fit. Use scissors, as tearing or stretching the material will compromise its effectiveness. Create a second layer at right angles to the first. If your first layer is 100mm deep, you’ll need 200mm wool for the second layer.Is 100mm loft insulation enough?The first 100mm of insulation is where the energy savings are really significant. Obviously if it is a new build then you have to lay 270mm of insulation in order to meet building regulations, but basically the answer to the question is this: 270mm is the recommended thickness of loft insulation!
