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Oldun - I wish I had the time for a paddle! As always, you're the man - you have provided me with what I need. Just had 4 sheets of A142 and 15 x 3 metres or R10 delivered. Hope to start the raft tomorrow. Cheers.

Hi I have got to locate R10 Rebar - the shape required is a stretched "Z" Two questions; 1) Is R10 10mm thick? 2) Are the bars made out of mild steel or what? 3) At what thickness would you think it is not bendable at home (got a good fixed vice and some scaffolding...

Hi I have just been given a plan from a structural engineer. I understand 99% of what we have got to do (raft with A142 mesh and R10 bars). Can anyone explain what the following means; 1) Concrete to be C35 ready mix OR SITE MIX . . . . . "mixed using a gauge box by volume"...

UPDATE I have just gone back to the website - this is what it states; DriTherm Cavity Slab 32 Ultimate has a thermal conductivity of 0.032 W/mK ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ DriTherm Cavity Slabs are for the thermal insulation of masonry cavity external walls, either...

Oldun, I'm not ignoring you - and follow/welcome the advice given. We started this extension right at the end of the 3 years allowed - so maybe the specs have changed. The website for Crown Dritherm Cavity Slabs 32 Ultimate state these slabs are ok for this area. And you can fully fill...

Woody your so right - the guy came around this morning with his catalogue, he did admit it was dated 1996! Thanks everyone.

Thanks theoldun I have just tried to decipher the Chartered Surveyors handwriting again for all the specifications and it now reads "fully insulated with Crown . . . Sorry I should have picked up on that before. So he must mean "fully" I'll run with that. He didn't specify a U value...

Hi My specs say I have to have a Catnic Lintels type CN3/CN7. I cannot find CN3/CN7 on Google. I have also tried for CN7 on its own but no trace. These lintels are for a 75mm cavity wall - regular brick & block. Any idea what the actual differences are between CN3 and CN7 or is...

:? Hi My specs say I have to have a 75mm cavity in regular brick & block. The insulation is specified as Crown Dritherm Cavity Slabs (made by Knauf). On the Knauf .pdf it says the cavity can be partially or fully filled. We are on a coastal site - I would prefer to fill the...

He said we could continue because of all the mess ups with the initial lean mix before he gets the plans to us - which is next Tuesday.. Any pointers?

Hi I HAVE A FEW QUESTIONS REGARDING RAFT FOOTINGS TO SKIP THE FOLLOWING SAGA PLEASE SEE "MY QUESTIONS" below. Quick recap - BI who is new to my area told me to dig 1 metre deep x .5 metre wide footings. The ground (reclaimed beach) is totally unsuitable, which has caused no end of...

Don't worry if you get machine set, your local friendly farmer now knows where you live, and will soon pull you out. Don't worry RedHerring - we deserve it (well my son does).

Hi We are about to install ply shuttering for residential footings. Is it normal practice NOT to back fill once the shuttering is in place. We would like to remove the ply (10 8' x 4' sheets (cut of course)) after the concrete has cured. Although the 18mm ply is braced - we were...

:shock: Hi, We have had a hired 3 ton digger for a week. We have just realised that the guy who dropped the digger off gave us the DELIVERY NOTE "company copy" and not the "customer copy". White = Site Pink = Company On the company copy there are no terms and conditions apart...

You only use shutter if your banks have collapsed and you wish to save on concrete. oldun uummm read this oldun (we've got it out now) http://www.diynot.com/forums/building/help-very-urgent-digger-truck-stuck.291574/

Thanks Taylortwocities, that's excellent - exactly what I need. Just as a side issue - will a fan with timer act like say an outdoor flood light - that is to say, once the PIR has started the fan, and the fan timer is say set for an hour - will any other detection from the PIR effect the...

Thanks that is what I wanted to know. We thought by using a "bottom" this would give us a perfect flat surface.

Hi Soon I will be installing a bathroom In-Line Duct Ceiling Fan with Timer - voltage 220-240V I have read that it needs to have an accessible fused connection. MY QUESTION To save having a pull switch or an outside the room switch, is it feasible/possible to connect a PIR, so that...

Hi Is it permissible to add a "ply bottom" to shuttering for residential footings? At the moment we have a two sided and two ends for the box. Because we are running out of time (due to lots of problems) I want to only have to call the BI back once - so that we can get the OK for...

IT'S OUT The digger had sunk even more, the top of the arm was in line with the top of the hole! This morning a local farmer (who it seems has a lot of heavy duty plant) had a two man team with a 7 ton digger and very strong chains eased it up and out very slowly. The advise we were...