Eric

Welcome to the forum, look forward to seeing the photos as you progress 👍🏻

Welcome to the forum, there will be a lot of knowledge on here for you 👍🏻

Ecology. No issue if you own the land. 6-8 weeks for application, quite difficult to get the first appointment. You need to have a plan of costs, proof of income, outgoings etc. Very helpful & easy to deal with.

Welcome to the forum. We started our timber frame in August 22 & still have a long way to go yet.

Welcome to the forum, look forward to seeing your drawings.

Yes, board ceilings then fit the plenums. Seal with silicone, cut plenum level with plasterboard.

Good luck trying to get Internorm to do anything about it or any other problems you encounter.

A hole saw isn’t expensive & just leaves enough room for a bead of silicone.

Electric all day long but we had power…

I would fit tall units in the space instead of the unit’s & worktop, should get 3 of them there. Eye level oven, fridge & freezer built in & loads of storage. Downdraught hob on the island. The other units will go up to the utility room wall & will look better without the fridge there.

I would suggest to fit a service void. How about your 150 timber frame with pir, 25mm pir over the studs, AVCL, 38*45 battens creating the service void then plasterboard?

I would fit the soffit to the timber frame, closing off. Stone then gets built up to the soffit. I would have the vents below the dpc. Where is your service void? I think the AVCL should be on the outside of your insulation.

I think they are meaning the exhaust to atmosphere, as this will condensate. I don’t think the intake should be such a problem but advisable to have fall if possible. You could lower the unit on the wall & should get enough fall on the exhaust duct to the unit. Either have a fall to the unit or outside. Personally I would have had both the ducts on the roof inline separated by at least 1.5m or have gone through the gable if detached?

With the sheets being on 50mm battens I would say that would provide the ventilation, if you removed the foam strips. House looks smart, is that metal sheets on the walls also?

Always advised not to put them above showers etc when I have had designs done.

Not above the shower, how about the middle of the ceiling?

I use plastic Hozelock connectors, outside all year round.

600 centres is standard so no worries with that. Insulation, vcl & service void before services.

Black pipe will be imperial, you will need an imperial to mdpe coupler.

I already have the PIR so will use it. Any advantage fitting rockwool in the service void on top of the PIR & VCL?

Thanks for the info, I am curious as to how I should be fitting the PIR under the rafters though. Is there any specific way the sheets should be cut/positioned to line up with rafters etc. It is 15mm plasterboard.

The photo has 170mm PIR in between the rafters, rafters not visible for the tape.

I am at the stage of fitting insulation under the rafters, vcl, 45mm service battens & plasterboard. Is there any particular way the insulation under the rafters should be fitted? Is it better to stagger or is it irrelevant due to service battens? Do the ends of the sheets need to be joined on a rafter or are they ok just on the insulation between the rafters? What is the best spacing for the service battens? 600mm seems quite a bit. The height from the top of the wall to where the ceiling will be is 1280mm. Any photos of previous work or suggestions would be appreciated.

It’s really not difficult to do, sounds like you have all the routes sorted. Give it a go & save the money for something else, plenty of help available on here.

Maybe attach some photos, someone may be able to help.