Jaygti

With the new warm roof on our 1 1/2 story house we need to fully fill between the rafters and add 60mm of wood fibre board on top. this will give us a u-value of 0.17, sound insulation of 49Db and 9.3 hrs of decrement delay. 80mm above gives us u-value 0.16 49Db sound insulation 10.7hrs decrement delay 100mm above gives us u-value 0.15 50Db sound insulation 12.1hrs decrement delay Our heating Is by a log burner, and we have an unlimited supply of free wood, so we won’t save much money on heating with a thicker roof. my question is, is it still worth going for a thicker roof, for reasons of comfort etc especially in the summer, or am I unlikely to notice much difference ? The downsides are the thicker boards are more expensive, and it will eat into a bit of headroom upstairs ,although not too much. thanks in advance

Thanks, I shall definitely investigate further then??

I was just wondering if this Stuff is worth looking at, to insulate our new pitched roof. I was was originally looking at Celotex, and still might go with it, especially as i can fit it my self. The problem is it seems to be poor as a sound insulator. We have a shed with 65mm of Celotex in the roof and it’s very noisy when it rains. Also I guess I will still need a layer of Celotex on top of the rafters to stop any thermal bridging. Finally what sort of rough cost would it come in at for an 80sqm roof? thanks in advance

Thanks for the replies, I shall ring on Monday??

Our planning application is currently going through the local council. the public consultation is over, the only comment we got was from the parish council , who recommended that it be approved. I was just wondering if it’s worth ringing the planning officer at some point to see if there’s any information she needs etc etc. Or should I just keep my head down for a few weeks? the only contact we’ve had is at the beginning when she came round to put the notice up. She knocked on the door , took a few pictures round the back of the house and then left. What do you think? thanks in advance

Just saying hello. We are planning to turn our bungalow into a house. The plans are in with the council, and we should get a decision by the 31st of January. I’ve learnt a lot from this site already, so a big thanks already. Be prepared for a few more questions in the coming months. Thanks jason