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Hi All My single story extension is ready for first fix wiring. I am extending the ground floor ring main into the new room to supply the sockets however its going to be difficult to access the lighting circuit of the original house in order to extend it without ripping flooring up in various...

Hi All, I am preparing my concrete base for liquid screed over 100mm PIR insulation. 2 questions... 1) The boards will be taped however they move up and down when walking across them. Whats the best way to secure them down? 2) The perimeter of the room is lined with 25mm insulation to protect...

Hi all What fixings would you recommend for securing aluminium bifold doors to H&H 3.6n blocks? Are they too soft for regular concrete screws or would you suggest using Fischer frame fixings instead? Cheers

Hi All Is it a problem to apply the top coat to a fibreglass flat roof 8-10 days after application of the resin/matt layer? What do you think? Thanks

Hi all. My extension parapet flat roof with roof lantern is almost ready to be fibreglassed (over 18mm osb). I have bought wall fillet trims to lap the fibreglass up onto the existing house wall and I was going to reinforce the roof lantern and parapet corners with an extra layer of glass matt...

Hi All After getting a £1250 quote for 18m2 of floor screed at 50mm, I thought I would investigate other options. I will require liquid screed for my extension with underfloor heating. I cannot go for a dry screed as I only have 50mm to work with. Has anyone ever DIY'ed liquid floor screed? I...

Hi all I did not realise wall ties need to be in place on every course around doors. My extension consists of timber inner leaf, 50mm cavity and blockwork external. As a cheaper alternative to helical wall ties, I was considering drilling a hole in the masonry, squirting some kemfix in and...

Hi all. I have Dewalt tools and want to invest in a nail gun for cladding my extension in cedar. I will be using stainless nails for secret fixing of 18mm cedar. Will the Dewalt DCN660 2nd fix gun be suitable for the job? Cheers

Hi all Couple of questions regarding DPC. I am building an extension which will consist of a timber internal leaf and blockwork external leaf, I have laid the first course of blocks and im at the DPC of the existing brick built house. 1) When connecting the new DPC to the existing, should I...

Hi all Soon I will order the concrete for my 22m2 raft foundation. The raft will support a single story part blockwork part timber extension. My structural engineer says C25 grade concrete will be suitable however it would only be £30 extra to go with C30 and £80 extra in total to go with C35...

Hi All I am in the middle of constructing a raft foundation for my extension. My DPM will sit on top of the slab below the insulation and screed so that I can tie it into the external leaf blockwork as my internal leaf will be timber. Probably a stupid question but is the only purpose of...

Hi All I am planning a rear single story extension and I have 2 public sewers which run under where I need to build. This is no issue as I have been advised by Anglian Water how they are to be protected when building over. The issue I have is my property's sewer pipe joins the main public sewer...

Hi All I cant find any regulation info on wood burning stove flues running along walls horrizontally. I am hoping to build a lean too extension with a wood burning stove in one corner. I want to run a 150mm double skin flue out of the top of the wall, along the external wall following the 15...

Hi Everyone. There are two public sewers running across my garden where I plan to build a single story extension. According to all of Anglian waters rules on their website, I cant see any reason why my application to build over the sewers may be rejected, assuming I protect the sewers with a...

Hi All There is a very large ditch which runs across the end of the gardens of the houses on my road. The ditch has a very small stream within it (just boggy, no visible water running). The ditch is about 10m long x 5m wide x 8 foot deep. The houses either side of me have installed a concrete...