Chanmenie

Are dry ridges an option with the tiles you are using? I did my own roof 190m2 but it has gable ends not hips

Yeah I back buttered it’s quite easy with a little practice and gives confidence

Yeah I saw that, that looks crap as well. if the wall is a bit off flat just use a bigger notched trowel. That will give a much better contact area. Dot and dab is just lazy IMHO, I’ve watched lots of tiling videos and no professionals use dots and dabs, they all use notched trowels

They are all set to 1 from the factory. Here’s the manual that should help https://www.grantuk.com/media/5179/uh8-rf-v2-15-lr-manual.pdf

I could not live with them that far off flat it would do my head in. l’ve just tiled my upstairs bathroom and used a levelling system. It was so easy to use and the end result looks great. I would never lay tiles now without using a levelling system.

I used 25 x 50, don’t think you can get 30 x 50 battens without having them specially made.

Have a look at Tapworks softeners

Our Renyaers sliders came with tape all over

I’m installing VL Plank at the moment, it’s pretty good

You can dot and dab onto EPS Plasterboard adhesive and Soudal Plasterboard adhesive foam both worked well on my EPS build

Those boxes are not designed to have grommets

How are you planning on building it ? Those U values for walls floor and roof are very low

Yeah I get that @JohnMo but in lots of cases a heat pump is recommended way over the the heat loss. my heat pump will heat my 190L in considerably less that 2hrs. And in your example would the pump actually be running for 24hours ? That would be a bit expensive, how long does yours run for ?

I think you mean 4.5 KW ( which seems high given you said near passive house spec ) in which case you really don’t need 10-12 kw ASHP my build is 190m2 my heat loss calc at -5 is 3kw so I have a 4KW ASHP. I had previously been told you have to make the heat pump bigger to allow for DHW but that’s not true as I don’t believe the pump will heat both at the same time

What was your heat loss calc in watts, if you are near passive house standards 10 - 12 KW sounds way too much unless you’re 400m2 ? My experience is most of the UFH designers don’t understand ASHP’s what’s your floor make up and how much insulation under the UFH pipes ?