Search results

Hi guys, I can't find a post I viewed a while back that showed nicely with pictures how to mark the top of the foundation level, so that when it's being poured you know it's level. My trenches were finished today. What a horrible job, bagging hundreds of bags of clay. Anyway, I have bought...

Hi guys, Had an interesting couple of nights marking out the walls for our rear extension. May seem like a silly question to those experienced in it, but I'll ask anyway. We are end of terrace. I used string down the external alley wall from front of house extending beyond the back. In...

Hello, I'm in the process of replacign all of the old clay foul and surface water drains at the rear of our house with new plastic pipes for our new rear extension. As we are head of the run, the drain pipes are quite high and close the the ground surface. As a result they will be...

Hi Guys, Does anyone know whether it is permitted to move my foul water downpipe to the side of my house in a shared alley. We are end of terrace (3 bed standard Lanodon terrace) and building a rear extension. To make the most of the new downstairs space, I want to divert the waste pipe from...

Hi Bob, Thanks for that. My email is [email protected]. I'm in London, but it would be good to speak to your suppliers and see what they say.

Hi FMT, I did a bit of searching with manufacturers and in the forum online in the last couple of days and it was the last post that led to this one. In my last post, a good point was made about possibly regretting instaling a 3 piece into 1.8 - 2m space. My searches were throwing up a few...

Hi guys, Wanting to put in a 3 piece bifold door into a new rear extension. I would imagine that 3 pieces into a small hole would perhaps look silly. What is a reasonable size for these. I have roughly 2.4 m to play with, but could go a bit bigger. Also, with so much out there, can anyone...

Tony, Thanks for that, very useful. Out of interest, you mentioned furring pieces for slope. As my flat roof will be enclosed by a parepet with the drainage point being in one corner, I knew I would need to build in the drainage slope towards this and thought I would do this using the joists...

Hi guys, Although I'm sure this can differ considerably depending on insulation etc, can anyone tell me what the approximate thickness of a warm deck flat roof will be including joists? Reason I ask is because I'm trying to work out whether my upstairs toilet waste pipe will be high...

Hi Guys, Sorry if this isn't really appropriate for this forum, but is there is so much available in the market, I thought I'd ask those who have most likely installed these in the past... The wife has decided that she would really like a 3 piece bifolding door on the rear extension...

Hi guys, After havign the 200mm insulation installed in our loft, I'm havign to place timber joist perpindiclur to the existign joists in order to get the height to place boarding. Any suggestions on what sheet timber I should use to board it out in a cost effective way. I am leaning towards...

Thanks NoSeal, It's a flat roof with parapet wall, so if I'm right there won't be any fascias. Appreciate the advice.

Anyone?

Hi guys, I'm busy creating the shoppign list of materials for my rear extension and am curious whether there are benefits to using thermal ply for the flat roof of the extension or should I rather use structural ply with kingspan or celotex slab insulation between the joist? Or do you use...

Maltaron, You asked my to post what the BCO agrees. Well although I haven't done the work yet, I have spoken to him and he confirmed that rodding eye access is not needed for all pipes. I was quite surprised at his relaxed attitude about it. He said that nowadays there are plenty of ways for...

Thanks woody. Just having a look at the dritherm range. Out of interest, what is e thickness of the slabs you tend to use. I noticed that the higher u value slabs are 100mm thick and you suggested a 75mm cavity. OR have I got this wrong again, are you suggesting 75mm cavity + 25mm dritherm to...

Just realised that I may have wrongle described the build at the bottom of our road. The insulation is 60mm and the remaining cavity is 40mm making the 100mm cavity I mentioned. Any advice on the alternative to rigid foil insulation would still be appreciated.

Woody, I've had an architect draw up plans that I will submit under building notice. I don't see the benefit of getting full planning review. I've also decided to use a private building inspector rather than the council. A fraction cheaper, but according to the architect and the inspector, it is...

Thanks for all the advice guys and Garyo, that document is a very useful reference guide for floors, walls and roof, which will be very useful for my self build extension. Interestingly, I have been following a side extension build at the bottom of our road. I just walked down to see progress...

That makes sense then woody. I never thought of it like that. So am I right in thinking that 2 skins of dense concrete block requires high rated insulation than if I used aerated inner skin? Is it a valid question to ask what cavity wall construction you would advise? I wanted dense concrete...