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    Lean to roof questions

    Happy new year! I will be building a lean to roof against my existing brick built garage. it will be used as a wood shed so will have three open sides with the roof being supported by posts. The roof will be tiled to match in with the house and garage. The shed will be 3.0m wide by 3.6m long...
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    joint patio as you go or all together when finished?

    Hi, I am currently a third the way through laying a 100m2 patio. Its going to take a few evenings and next weekend to complete. I was planning to complete the lot then use Rompox easy to point at the end. I'm now fearful the kids will get loose and dislodge some of the slabs i have laid ao was...
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    Laminate on new screed with wet u/f heating

    Hi, I've just completed and extension with underfloor heating in and am in the process of retrofitting underfloor heating to a room in the old part of the house. Bit of a ball ache digging it out to 450mm by hand over 25m2, but the result will be worth it. The rest of the house has a tiles...
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    Two single ovens wont fit in kitchen cabinet

    Hi, Currently installing a howdens kitchen and struggling with the appliance tower cabinet. I cannot get the two single ovens to fit with the space left over. Couple of questions for someone who may have come up against this previously, can the single ovens be mounted directly on top of each...
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    basic screw question

    Hi, I will be installing some internal bifold doors which has a bottom rail and runners in the top. The head needs to be screwed to above support which is a catnic lintel with a steel RSJ sat on the catnic (there is a reason for this). Having looked in the screwfix catalogue I can see the self...
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    Solid walls no DPM - Tanking?

    Hi, I'm undertaking an extension. A small section is the original house with solid stone walls with no DPC. When I stripped the plaster there was a corrugated plastic strip from floor level to about a metre up the wall, this was dfamaged so i ripped it out. Just wondered if there is something...
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    0.4 bar pressure drop on testing underfloor heating

    Hi, I have laid underfloor heating in my extension and I am testing it. I attached a Monument water pressure gauge at 5pm last night which showed 5.3 bar and noticed when i got back from work today the gauge is showing 4.9 bar - 24hrs later. this is obviously not good but I wanted to rule out a...
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    What size door lining to span cavity

    Hi I am building extension at the moment and will be installing door linings soon. Most of the internal walls are the same thickness and am planning to use 133mm wide door linings. However, there is one wall which leads in to a small room which is single storey so the there is a cavity of 100mm...
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    Forticrete gemini nail size

    Hi I will be installing forticrete Gemini tiles to my extension. The tile is 15mm thick and battens will be 25mm thick. In the instructions for the tiles it says to use 45mm nails, but this means the point of the nail would protrude 5mm under the batten potentially piercing the membrane. Is...
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    Velux roof lights - gap size

    This is probably a basic question but i will be ordering some roof lights for my extension soon, if the size I am ordering is 780 x 1180 then the gap i leave in the roof structure is the same correct? There is no extra required i.e 800 x 1200 for frame etc? (obviously leave an extra mm or so for...
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    Help on roofing detail

    Hi, I am undertaking an extension and currently on the roof. There is a detail which is puzzling me and i would like some advice on how to undertake it properly - not bodging as I would have done! See the attached photo. The green felt is the existing roof which hasn't got baton on yet. The...
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    Dry valley or not... and fireboard detail at gable end

    Hi all, Couple of questions from me. I am undertaking an extension and at the roofing stage. I have had the structure of the roof built by someone and I am planning to undertake everything else - how hard can it be! Is there a consensus on a better system for valleys? Dry or not? I was...
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    How long before covering floor slab

    Hi, I will pouring the floor slab in my hall next. I will need to start walking on it as soon as it has gone off. However that would leave me with a 200mm step in to every room off the hall. I was planning to put the insulation down as soon as possible and then board over the top and put the...
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    New central heating and hot water install

    Hi, I am undertaking an extension and will be looking to install a complete new CH and HW system. We only have access to oil, so I am looking for the most efficient system to fit with underfloor heating to approx 100m2 downstairs and 7 medium sized rads upstairs. Hot water will be average for...
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    Best level to set foundation for internal wall

    Hi I'm undertaking an extension and am currently working on the internal foundations. I have a new pier to construct and have dug down about 500mm from finished floor level down to some really hard clay. this is about 200mm below the existing foundations. I will be replacing the floor in this...
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    What am I doing wrong! Leaks from stop tap

    Hi, I've just laid a new 25mm MDPE main to my outside tap. There is a stop tap below ground and then a 15mm pipe goes up to the outside tap. I have two leaks in the space of a metre!!! The first is where the MDPE pipe joins the stop tap. I have put the insert in the MDPE pipe, it has a copper...
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    New internal wall, foundation type?

    Hi Im undertaking an extension and will be laying the hardcore to the oversite soon. I will have an internal wall to the toilet that I want to build out of concrete block and not timber studwork. its only about about 2.5m in total length. It wont be load bearing. My question, what sort of...
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    Retrofitting UFH and new ground slab

    I am looking to extend and retrofit UFH to my 1830s cottage. The two rooms which form part of the existing house are the hall and the dining room. The hall is within the original part of the house and the dining room was bolted on in the 90's. My concern is what construction to use in the hall...
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    Tiling labour costs

    Howdy all, We're having an extension built next year. I'm trying to work out how much it will cost to tile our kitchen/family room and hall. The total area is just shy of 70m2 and the tiles are limestone in a grand opus pattern. I have been quoted £35 per m2 labour only. Not sure how much...
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    DPC and DPM options

    I'm in the process of planning my extension. Now, I have done a few building projects and helped out on a few extensions so have a fairly good grasp of how everything goes together (or so i think). I have seen a video online, building an extension where the don't cast the concrete slab until...
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