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Thanks for you replies I am going to use an auger to drill a couple of holes and fill with pea gravel just aid with any drainage Other than that i am think of usings two layers of DPM one from under the insulation and the other from under the slab itself and wrapping up the outside of the...

I'de rather not go through the hassle plus, i have most of the materials and machinery needed already. Also just due to the position and neighbours i am sure they will shoot down the idea

Hey all, I am looking at building a garden room - I have the overall plan and materials sorted however i know there is 2.5m height restriction with these things I am trying to maximise the headroom and also have a warm roof construction rather than a cold roof My idea is to dig down and build...

Do you not think it will be quite cold in there? That video above was just block and plasterboard. Might it be a better idea just to make it all from PIR and timber?

Not sure why it would be higher - but it would be a case of digging it all out down to a height where you can insulate and pour concrete on top - or dig down enough to build a sub floor. i think the regulations are 100mm insulation and 100mm concrete - so if you dig down 270 and you have a good...

So just make sure you are buying the right thing leading/trailing edge for your lights Then do the math - 18x 4.8w = 86.4w so you can use a 120w dimmer Try varilight they are usually good

So i am looking to construct a small garden room 2.5x3m external size - 2.5m height I was just going to lay and insulated slab and construct a timber frame but I have a bunch of thermalite blocks leftover from our recent extension so want put those to good use. Then baton the wall and use PIR...

Okay thanks for you reply

@^woody^ Why would it need to be as deep - if i was making it out of timber i would just make a solid concrete base A single skim of thermalite isn't going to need the same as full extension is it?

Hey guys, So thinking about building a garden room - iw as planning on just making it from timber and insulation board on a concrete slab, however i have a bunch of themalite blocks leftover from our extension As they are so light and will be holding the same load as if it was just made from...

Okay thanks for you help woody :)

Okay something like this?

Hey guys I am at the roof stage with my extension - Roof joists are in and i am just after some advice about how the warm roof terminates into the gutter and how it goes across the wall thresh hold I have put some images together of my thoughts, maybe they will all work but just wanted some...

Okay great thanks for your help guys

Yeah the steel beam is probably overkill it's 254x102x22 beam so will be fine. BC is happy with it going on the steal or the timber Timers 2x8s and the the room is 3.05m by 3.9m so it's not a massive span

Firstly thanks for getting back to me. So the red is brick wall, the blue is the steel. So the timber spans the width of the extension and sits on the two outside walls. So I guess I don't need to even bolt the timber into the steel? I thought it would just give some extra strength I could...

Yeah thats fine - if in doubt give you building control officer a call - they won't mind you asking!

Yeah if its sitting on the brick work then thats taking most of the weight - the bolts into wall would just be extra security Well the building control would never ask for more less than 400mm so going with that is a safest bet - however 800 centre is enough i would say Anchor resin is good...

Yeah i would say thats fine - just check with building control the spacing of the bolts into the wall Also would make it better if the ledger board can sit on the wall either side too

Hey guys, I am doing a single story extension with a flat roof. I have the Steel beam above the opening for the bifold doors (2.8m steel with 2.4m opening) The timber joists for the floor are let into the wall either side back and front and then i am going to joist hang the and timber the...