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Agree with what Tony has said, how ever their is a grey area in as much as 100mm unventilated branch pipes should not exceed 15metres in length either internal or exterrnal No idea how long your run is, but felt it should be something you are aware of. Regards oldun

If you have a brochure or Right Move showing or detailing the house, barn, paddock and driveway on which you made the offer, and the agents wrote to you accepting your offer, then, we would suggest that you spend a few bob on legal advice. If agents informed you that you have been gazumped on...

You would get a lot more information if you answered Tony's question. Are stairs for loft conversion or to replace existing? Regards oldun

Tony and OP, Hold our hands up, will squeeze our nuts and humbly appologise for our mistake. On the strength of new loading 1.5kn/m2, nothing in the tables go up to that weight, and we can only guess that you would need C16 75x220. Regards oldun :oops: :oops:

Never built a Green Roof, never read up on them, and no wish to do so. Advice. Little good news, so will jump straight to bad news. 12mm plywood is undersized for 600 centre roof joists. Your wall studs are at 450 centres and even with a double top plate your roof joists should have been the...

There writes a man who knows his BRs As we said previously, pitched roofs are a different animal. And if your pitch is 22.5, then technically according to ADA you do not need holding down straps although from past experience BI usually ask for them as they do not know there own BRs In new...

With all due respect to Ree, technically you are right providing you are building a single skin block wall garage, rendered externally, which you say you are. You do not state your roof construction, which can lead to a different ball game, so we will assume it is a flat roof, Stainless steel...

Gary. Couple bad days. Sorry. We work out our own U values, and for piece of mind we run our figures for our last U value calculation through Celotex calculator, and for some reason they did not stand up. Can only assume Celotex allow a much larger percentage for repeated cold bridging. Any...

Your builders merchant has no idea of what they are talking about; Thermalite are made by the Heidelberg Group and have a Lambda (K value) of 0,15W/mK. Fibolite are made by Plasmor and have a K value of 0.25W/mK. In your post you mention U value W/m2K To arrive at a U value you first work...

And my brothers are Grumpy, Bashful, Sleepy, Sneezy, Happy, and Dopey. Regards Snow White

Chirpy Does me old heart good to know that you had a successful completion In my opinion lad, you have the balls and guts to tackle any cut roof. Suggest you advertise in local paper, cut roofs a speciality Not many lads around who know the difference between a King, Queen, Jack and Common...

If you are using existing meter then expose your gas main where it passes through foundations or footings Either sleeve it or bridge it and leave it in present position. Carry on until you pit your lid on, however you will have to supply and build in your own meter box to the position...

In a nut shell, YES. Clear 100mm of sh*t out of area inside fender wall, lay lump of poly and 100mm concrete Work of that. Or chop a composite 100x75 pre stressed lintel 100mm into each jamb as low as possible and work of that. If you are using blocks, screw a frame cramp in every other...

Before giving any possible reason or remedial works, would like to clarify the following. House built early 1970, so assume cavity wall with roof plate and rafters on interior wall? You say average pitch, could you be more precise? What is present roof covering and has it been changed in...

Gary, If you want to go option 2, then fine, but work away from your garage over the 4200 span and throw in a timber dead man on hard packers at mid span. Fill in deadman on completion as before. You will have to be a lot more fussy with concrete if you are going insulation and T&G boards...

That is not a padstone. Padstone should be square all round. The profile you have shown is a section of a composite prestressed lintel. Regards oldun

Gary, Been thinking about our last post and ways of trying to save you a few bob. Change stud work to 47x100. Change celotex to 80mm. Will give you Total R of 4.50 less cold bridge equals 3.60 equals U value of 0.28W/m2K Will come back again the next two days. Regards oldun

Natural England. Have a lot of respect for their aims, objectives and achievements, but why oh why. does another lot of tree huggers, live in a different world. Just because the old boys who built those walls couple of hundred years ago, used lime mortar, as that was all they had in those days...

Clean up and rebed the blocks knocked of and take restraint nib up to full height of door. with 3.5N concrete blocks 150mm frame cramp screwed to existing brick pier every course of block. Regards oldun

Yes that is the only way we would be interested. Why should we pay somebodies overheads and profit margin when we can do it our selves? We thought that you were talking about a single plot, but you have moved the goal posts and say that there are 6 plots that you wish to sell to Self Builders...