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Nice to have the calcs I have paid for confirmed. Will stick to the engineer's recommendation wood wise as that is what will be submitted to building regs dept. 75 x 225 C24's aren't that expensive in 4M lengths, about £25 each. May I ask Tony where you have got your knowledge from, (not...

Will get them in now then if it is common practice. Only missed one block so not a tragedy. Thanks.

Will pass that on to my builder friend. Building control has not specified this?? I have noticed that the tarp has knocked two bricks off the top course at the window reveals, so have changed to this which seems to be holding up under the wind and rain. All comments welcome. Graham

outwards as you described it is 4M, side to side it is, (where the wall plate sits on inner block skin each side), 4.2M. What are your thoughts, I am using Marley Modern concrete tiles as per the house, all of which was on plans to SE.

Thanks for the replies. firstly I have a brick layer doing that side of things and he knows what he is doing so am fine with how he is doing it. He did say that he would be putting some blockwork up next . The damp membrane does indeed extend into the existing house overlapped with the...

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...

Thanks Tony for that, just what I wanted. As for the structural eng, apparently it was touch and go if I was going to have to get a steel for the job :shock: I am getting brickwork done by a builder friend as I can't do that tbh, and he said he is seeing more and more over...

Sorry Woody, just got in from meal and pub and took me a while to get your post lol. Where does the first rafter position then??

Ok, might be describing it wrong :oops: I am doing a single story extension to replace a conservatory, but the roof has a gable end something like this, very rough I know !! (red id existing house wall) Inside I am not putting a traditional ceiling in but want the roof to be...

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...

Well building inspector passed it so got it right in the end. To be honest he didn't even look at the visqueen or insulation on house wall, he was more interested in where my rain water was going ! Worrying for nothing ! Hey ho, it's done now so onwards and upwards as they say ! Graham

Thanks for all your help. Graham

Hi, as can be seen from my earlier reply pics, the existing house slab visqueen extends about 20" into the new extension. It is about 2M wide. I have simply, at the moment, laid the old visqueen under the new so the new slab pour will push the two visqueen layers together. A...

Thanks for the replies about the insulation. On the visqueen front, I have overlapped my main sheets for the new slab by about 3 meters as one width didn't quite fit The old slab insulation I have laid under the new one but have used no tape. I don't see how I can tape the...

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...

Sorry , yes submit!! They asked for either SAP Or U value calcs, what is the difference??

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...

Perfect, thanks. I am putting up a single story extension to replace my conservatory and although I will need new foundations I can't see that they would be lower than that of either mine or my neighbour's house. I have chatted to them and they are fine with everything, even offered some...

No not drunk and he is only doing plans for me, however we are in a detached house but within 3 meters of next door's boundary. I am doing all but the brickwork myself and just want to be sure I have all bases covered.