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Hi all, just another quick question, do I need a vapour barrier between the rafters and plasterboard ?? There will be an inch gap between the roofing membrane and the top of the 125mm insulation in between the rafters and the soffits will be vented allowing air flow under the tiles. It...

Hi all, am I correct in thinking I can still run my own wiring and just have the part P fella connect up and inspect?? If so how do I run wires inside this roof to be within regulations?? Can I 'spur' the new extension into the existing ring main as they did with the old...

Hi all, extension coming along now, and I am thinking about the inside. I am having a vaulted ceiling to the single story extension with roof lights. (ie the roof rafters form the basis for the ceiling and it will be the roof shape). The plans I had drawn up originally said after 125mm...

Hi all, am at the roof stage and need to plan my rafters. New to roofs, as I was to bricklaying, foundations ect so go easy lol I have approx. 24 deg pitch to roof and therefore I need to attach the rafters to the ridge beam with a 24 deg cut, that I know. My question is are there...

Hi all, As far as I know at present the roof sits on the walls thus... My understanding is that I build the outer brick wall over the patio doors (2.1M) to a height of 2.4M and the inner skin of block is 1 block higher as shown. Then it's rafters attached to wall plate on inner skin...

Hi all, I am planning my roof windows, have got 4 off, 78 x 98 velux from a house conversion but need tile flashings as they have slate ones on at the moment. My tiles are 15mm thick marley moderns and I think the roof pitch will be about 23 deg. I know the kits are either EDP kit for...

Hi all, I am not sure if I am being too fussy about things. This is where I am at I have to protect he brickwork as much as poss till the mortar has gone off so am protecting using this Is this too much as I am concerned that the weight of the wind/rain will pull the walls...

Hi all, have been getting some great advice in the building section so here I am in roofing section for some more !! Ok, am new to roofing as I was to building so here goes. I am putting a vaulted roof on my single story extension. A structural engineer is calculating the ridge beam...

Hi all, I am getting on with the build and am now waiting for the building inspector to see the progress before pouring the slab. My only question about what I have done is the join between the new slab and the existing house slab. Old bay slab. This is where I am. I have...

Hi all, All is progressing well with the extension, conservatory down and foundation dig is due to start. I have decided to save money and use the patio door from the conservatory in the extension. It is nearly the full wall height, which is where my question lies. Do I use one of...

Hi all, I have just got my plans back from control with a note stating that because my window area is more than 25% of the floor area I need to suit U value calls. I know they are insulation values but how do I calculate them and what do I need value wise?? I am doing a 4*4 single story...

Hi all, I was told by the builder who drew up my plans that I need a permission signature from my neighbour as I am building closer than 3 meters from thier house. This wont be a problem as we get on fine, but how do I word a ' we'll put the fence back if is moves ' agreement ...

Hi all, my plans state my walls to be partial filled with 75mm Kingspan, but if I wanted to change to full fill Dritherm batts can I do ?? I take it that building control will have to be consulted to check it is ok, but would my plans have to alter aswell?? Graham

Hi all, My first foray into the building world, on a budget so want to do as much work myself as possible including sourcing materials. Firstly, what are the u values and how do they work, the higher the better?? secondly, I am considering Crown diotherm slabs instead of...