Thorfun

Was actually in a rush to leave the office.

Your thread is like a bible to me and I refer back to it often!! thanks for the weight of the skim, I was wondering what that would be. definitely loads more to think about and to consider other options. I could do 12.5mm and 9mm as a middle ground. So many options.

so true

Hi @Gus Potter. thank you for the response. i do actually have all of the SE calculations for the TF and i think i have them for the basement. The load bearing walls that the joists sit on are 140mm CLS timber walls. the external walls sit on 250mm reinforced concrete walls which sit on a 250mm reinforced concrete slab. the deflection of the joists were designed to be 8mm so we don't get any sort of bounce in the rooms above. do you think that for peace of mind i should engage a structural engineer for this? i can then give them all the information i have and ask them to calculate if double boarding will screw stuff up? if so, how much do you think something like that would cost?

You described my work perfectly!! 😊

Also, I read others on here had issues with EPS70 and UFH staples not staying in and destroying the EPS. I had no such issues with EPS100.

According to Jablite who I phoned on this subject EPS70 is fine for standard domestic loads under a screed. They said if it was for a gym equipment or heavier loads then EPS100 would be needed. For under our screed I decided to go for EPS100, not because I’m putting a gym on top but just for peace of mind in case loads increase (although I wonder what the block and beam load is specified at?) and the price increase was minimal and still half the price of PIR!

Will take a look. Cheers.

I read that as don’t do it myself! 😂

It’s more what SWMBO has decided on for tiles. I’ll pose the question of mosaics. Will also ask the tiler when he comes down. I can’t make the linear trays work as we have 300mm centre joists and they’re really wide as well. So only about 150mm gap between the joists and as is Sod’s Law the joists are exactly where the waste will be and we have a double joist there too! So would have to build the wall out about 150mm to make it work and it’s already a smallish shower area. So the easy fit formers with the rotating waste works better for us.

Oh! I thought with the slope a tile would have to start at the former as they don’t bend! So there’s be a line where the former started. ok but aren’t mosaics on a webbed backing so they’d bend/angle down the slop of the former?

I am concerned about having a strip of 100mm tiles looking a bit strange at the end of the former is all. I’ve no doubt it can be done just concerned as to how it will look.

We are. The Impey Easy Fit formers. You surprise me!! 😂 obviously I meant I can cut it down to give a reasonably sized flat bit as part of the entrance.

Could be a while then

not strictly true. you could get a standing seam roofing company to do the roof, a chippie to do the cladding and the window supplier to install the doors and windows. no need to pay the overhead of a main contractor for that stuff as far as I can see, unless you're wanting to reduce risk by paying a main contractor. we did ours with separate trades and worked well.

actually, thinking about it, I can cut down the 1300mm x 800mm tray to whatever length I want (within the limitations of the tray as specified by Impey of course)! 🤦‍♂️

I spent this morning removing the crack mitigation strips and extra dpm from around our newly laid screed. definitely not been idle!

true but they're late-ish teenagers so nearly adults! we're not talking little kids. I would happily get the 1300mm x 800mm tray but that would leave only 100mm at the end for a narrow strip of tile and I'm concerned it will look funny. other option is to go for a 1200mm x 750mm tray to give a larger flat area but slightly narrower shower.

afternoon. I've got another question please. our kids shower areas are 1400mm x 800mm. we're going to use an 800mm screen leaving a 600mm entrance. is there any issue with using an 800mm x 800mm tray and then laying tiles flat in the 600mm entrance to the shower area? or should the tray be as close to the size of the shower area as possible? so for the Impey Easy-fit trays that'd be 1300mm x 800mm. I presume that if we run the UFH to the entrance area then any splash/water that sits on it (as it won't 'flow' back to the drain as it's not on the shower tray) will dry pretty quickly so not an issue?

@Gus Potter don't suppose you would have the time to take a quick look at this for me please? I'm trying to work out if I can double board my ceilings if I want to. I 'think' that the dropped MF ceiling has minimal impact on the dead load and it looks like the bottom chord is rated at 200N/m2 which, to my mind, means a load of ~20kg/m2 and so 2 x 12.5mm plasterboard at 8kg/m2 each should be within tolerance. assuming resilient bars and any light fittings are negligible as well.

Look forward to seeing the finished product

Ahh…right. I thought it was some plumbing wizardry that I hadn’t seen before.

what's that pink stuff around the copper pipe? if you don't know I'm sure @Nickfromwales will!

have now read most of the comments and @ETC's first floor layout with no guest room and bigger equal sized kids rooms is much better and very reminiscent of our layout! 🙂 but, like @SteamyTea, I don't normally like to comment on other people's designs as it's very personal and what suits one person may not suit another. so, just go with what you want. 😉

too lazy and didn't read any of the previous comments but had a quick look at your plans and if the above is true then why have you given your children narrow small bedrooms? they don't stay young and small for long and will eventually need desks for school work and having mates round etc. doesn't seem like your architect has given any thought to them growing and expanding. Also, it's very expensive to get on the housing ladder these days so your kids might stay at home well in to adulthood. not sure a 2.5m x 3.9m bedroom would cut it! and, finally, why is the guest room bigger than the kids rooms? for a room that won't get used much it's a real waste of space in our opinion. we didn't build a guest room and only made 3 bedrooms. our kids rooms are 4m x 4m so they can grow in them. if we have guests then we have a room above the garage that can have a sofa bed. or a sofa bed in the TV room. or they can stay at a local Travelodge.