Gone West

Yup, we're showing our age 😀.

Close the flow valve fully, counting the number of turns. Then open the valve half that number. Leave it a day and if the room temperature is still too hot, or not hot enough, adjust the valve accordingly.

We've just fitted some Cedral Click cladding which was readily available through our local builders merchants. They do a smooth or wood effect finish in a range of colours including timber. They have a featheredge (Lap) or T&G (Click) type. https://www.cedral.world/en-gb/cladding/

I used a Floplast double branched connector for back to back WC connections into a single outlet pipe. The outlet dropped down and the AAV was connected to the top. The BCO was interested in the connector but was quite happy that it was designed for that purpose. We lived there for over three years without any problems. https://www.floplast.co.uk/product/double-branch

We used timber studwork covered in 12mm Hardiebacker board in all our bathrooms.

That's interesting, our trims were steel and were screwed down and the membrane was welded to the trim.

The problem is, who does that? To ensure it is correct would mean educating the masses about WC, who don't want to be educated about 'boring stuff'. As has already been said, finding professionals who can do it is difficult enough.

I don't understand. The underlay used is a material that looks like a dark green nylon pot scourer and isn't visible in the last picture 😕.

IIRC the upstand is on top of the underlay.

These are the best I've got, sorry.

I'll have a look, probably not from close to.

We had a Sika single-ply membrane installed on a small extension a couple of months ago. The edge trim upstand is a steel profile covered with a membrane. The profiles were fitted first, then the underlay and then the roof membrane was welded to the profile. The edge of the roof was just a double layer of 18mm OSB.

We've got a couple of sun tubes in our kitchen, but they have frosted plastic at the bottom. It's probably so you can't see the reflective tube. Incidently we're going to replace them with boxed in skylights sometime.

Welcome to the forum. I hope you are able to achieve what you want with the Planners. Looks like a lovely site.

We had back to back bathroom and ensuite which both connected to a single stack with an AAV. It was a snug fit and the BCO was interested but happy it was all ok.