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Hi all hope someone can help with so guidance. I'm doing a small kitchen extension on the back of the house, where it joins the conservatory I was going to leave it as a single skin wall (see pic). I'm doing things right so involved building control and of course as the conservatory is...

Many thanks for this, I think I will stick with my layout as I'm doing it myself and it makes it a lot more simple.

I have dug out to this, just want to be sure I have done enough.

Can I confirm what I need for the slab for my kitchen ext (2.5m x 3m). It will be inspected by BCO. 150mm hardcore > sand blinding > 1200g membrane > 100mm Kingspan > membrane > 100mm concrete slab. I was not goig to have a screed as the floor will be tiled. Does the colour of the...

Thanks guys, after some pleading and based on the fact I have got my 70's semi upto an A rating they have agreed to accept the EPC's.

I have already given her a before and after EPC, with a "A" rated boiler it gets through easy but she wont accept the EPC's and wants SAP calcs. I think its all a bit daft after all I have already shown passes with EPC's

from experience is this going to pass? Extension projecting 2.5m from the back of the house its 3.5 wide. I intend to have thermolite on the inside and concrete bricks on the outside with a fully filled (batts) 100mm cavity, the floor will be solid with 100mm kingspan insulation. The roof...

If anyone on here has the skills for this I'm happy to pay. It's a simple 3.5m x 2.5m single story ext.

Yes I think your right she did mention 25% of the floor area. As the whole roof is glass its the same (even bigger due to pitch) than the floor.

Hi, I’m doing a kitchen extension which is brick and thermolite (100mm insulation) cavity walls with a glass roof (flowing from conservatory). When I spoke to Building Control about this they told me on the phone I would need to show the house was no less efficient after the extension than...

Ah I'm with you, to stop Thermal bridging.

I had building control out today to inspect my foundations which were passed. Next is the slab, I had intended: 150mm hardcore > sand blinding > membrane > 100mm Kingspan > 100mm concrete slab. The BCO said vapour barrier between the kingspan and slab. Is this normal? im guessing it...

Many thanks for that.

I have been searching everyware for information on minimum door sizes but can't find anything. I'm completing a side extension that upstairs makes the bedrooms bigger and adds two en-suites. The main family bathroom (as with all the door in the house) has an oversize door fitted in both...

You have not said if its gas or electric. For Gas there are clearances that need to be followed (not building regs but Gas Safety Regs) or you wont get it fitted and signed off. The clearances are in the manufacturers instructions. Without manufacturers instructions (they may require more...

Of course its taken into account. When I quote for a boiler replacement I put on the quote I will remove all scrap and waste. Firstly, if it was not for the scrap I would have to pay to get the rubbish collected, the scrap pays for this and often its just a simple deal for my scrap guy to...

It's a 2.7kW heater. Its only a small extension, enlarging the living room and adding a single bedroom and bathroom upstairs. The upstairs & downstairs lighting and socket circuits will be extended. I will be first fixing but my electrician wants to see all wires before I cover anything...

(advice removed) Thanks. I have been unable to contact my engineer and I have to take the wall its fitted to down for my extension, he told me this was the method he uses (that was 2 years ago when he fitted it for me) and he said I could use this method to decommission it and call him to...