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Okay 5700 over all brickwork, less two external walls and cavities = overall plates = 5300 = half run of 2650 at 45 degree pitch = 3748 slope to rafter from top plumb cut to birds mouth heel cut plus overhang as required. 47x175 C16 timbers are of no use to you and you will need C24 and even...

We put insulation under screed to keep heat in the room and not going down to heat the concrete and form a heat sink In the same way a warm pitched roof is a waste of space as you want the heat retained in the first floor rooms and not going up into the roof space, unless of course you have a...

Okay, take cav walls first. U value 0.28. Thermalite turbo (lanbda) Kvalue 0.11. Therm Shield K value 0.18, so with Turbo use 100mm Dritherm 37 ,P/B D&D. With Shield use 100mm Drithern 34 Super. P/B D&D. Tell brick layers to set inner block wall over to 100mm wide cavity at DPC. Oversite...

Sorry, but who ever done your U values do not know what they are talking about. Assume this an extension under L1B and not a new build under L1A. Firstly the 5000 range has been recently introduced by Celotex with a K value of 0.21W/mK as against the 4000 range of 0.22W/mK. Basically this...

wakey77 Hi guys im looking for a bit of advice on flat roof construction. You are part way there. 47x150 C16 reguiised to 145 will span 3.07 for maintenance and repair/. Included in this size is 0.75 KG/m2 snow load and 0.75 KG/m2 dead load. This will be more than adequate for you. If your...

Good idea that Freddy. You could also have Flanagan and Allen round, though suspect they were a bit before your time. Are you still leaning out your window to see into your neighbours hot tub?:roll: :D Regards oldun __________________ Cats Rule!. Not according to my dog.

We do not think so Lad. We started in this industry in 1952, and reckon we have forgot more tricks than you have ever learned. We go out of our way to help people out and will only criticise some Flash Gordons post who clearly does not know what he is talking about. At a rough guess you...

As Jed has said, it looks very much like Dry Rot. If it is, you have a serious problem. Get it looked at asap, as the spores can grow like wild fire. Regards oldun.

Agree with Tony, your choice. Cheapest way is dropped beam with Expamet Arch Former each end to give it a bit of character.. Regards oldun

You should learn how to bed a level house plate to a line fellow and not put 30mm bumps and hollows in the roof. oldun :roll:

Chirpy, Quote. Pitch Line? I think I do, but I am not sure. Okay, you under stand HAP and the fact that it lifts the ridge and top of rafter up from the true hypotenuse. The hypotenuse is the measure from the top external edge of wall plate and to where the rafter will hit the ridge...

Tony , You would never believe some of the drawings we have had to work to over the years. Welcome to an old bricklayers world. If you can not level it with a passing cloud or sight it up with a near by tree, then f*ck it, do it your way. Trust that meets with Mr BAS approval Regards oldun...

Chirpy. Bad day again yesterday. Sorry. Your double door frame will be at 2100. Your dormer window should be at 2100, Line the two through and shows back plate at 2100.You know in your own mind that the detail on back plate will not work, so lift plate up to existing house plate level, lift...

Chirpy, Read your post. Bad day to-day. Should be okay to-morrow and will answer your post in detail Regards oldun

Fail to see what all the fuss is about really, as the OP has not given the distance from his boundary. The OP clearly states in his post that garage is within 2 metres of the boundary, which being the case and providing he is not 1 metre or less, then he can do what ever he likes. Curious...

Chirpy, Finally got your drawings up.. If it was us we would walk away, until somebody provided some decent working drawings, as the present drawings are just not workable or practical. Take section first, Shows joists running front to back, but no partition or steel in centre to support this...

Tried again. Comes up Private Profile, no albums to view. On your home page go into help and change your settings. Regards oldun

Chirpy, Firstly nobody thinks you are taking the P*ss with the questions you are asking. You will find people on this forum are only to pleased to help you. One of our big regrets, is that over our life time we have only brought 4 apprentices through the trade Some how or other you have...

You need the width over all the wall plates to work out the rise and then the pitch. Post the width and we will answer your question. Fred, Either take a course in speed reading, or get your cat to read it for you. :lol: Regards oldun . .

Cheers for your post Tony, agree with most of it, but disagree with your approach. The Lads drawings are sh*te, reckon they were for P.P. only and the work is being carried out on a B.N., hence the lack of information. In an instance like this if he works to Trada tables and there is any...