Mr Punter

Sounds crazy but I would leave it a year.

It will take a long time to dry. Yes, just get rid of the loose stuff, wipe with bleach and off you go.

I was pleased to read that the EU and UK have reached agreement over NI border checks. Threatening to break international law was not very becoming.

Incidentally if you need to work on MDPE where there is no upstream stopcock you can get a squeeze-off tool to stop the flow.

Gosh that would have been a lot of water if you cut straight through with the pipe shears.

Is it rigid insulation or fluffy? If rigid you could just go ahead. If it is fluffy and looks ruinously wet, I would remove it and replace if wall ties allow. You could use polystyrene beads, but choose a very calm day.

I thought the water was blended with cold in UFH. Surely there is something you can have to stop the boiler firing due to a call from the UFH cicuit for at least an hour, to stop it cycling? We are in a fairly average spec new house and the heating is mostly only on from December to March. In a previous new house we had UFH and the boiler shut down mid winter and it was a day before we noticed.

I did not think MVHR had much impact on SAP and energy consumption. More a thing of better air quality and no draughts.

Is there any point in having a very low output heat only boiler for the UFH plus a BFO combi for hot water?

All hope was lost when you said gynaecologist. At that stage the thread disappeared into a black hole.

It looks quite bodged but it could outlast the rest of the house. It may have replaced a previous lean-to or conservatory. Does it have building regs?

The outside terminals on mine have backdraught flaps and the fans have an iris that opens when the fan runs. Not as good as MVHR but I could not find space for the unit and all the ducting, plus over 4 storeys there would need to be lots of acoustic and fire stopping. Also, I like an externally ducted kitchen extractor. The recirculating ones don't do it for me.

No. Extracts x 6 plus trickle vents.

The SAP for here has the same 60KWh/m2/year for "current primary energy use" but the estimated heat demand (space heating + water heating) works out at 35KWh/m2/year. Not sure how the figures relate.

Gas heating, DHW and hob has worked out at 60KWh/m2/year here averaged over 3 years. I suspect we don't bath and shower much though.

You only needed a small inspection cover but this will give you the benefit of being able to send up a street urchin should you wish to give the rest of the brickwork a coat of paint!

It is easier for others to comment on price if you give an amount per square metre for supply and and amount for fitting. Also handy to quote the average u value. Anyway, Rationel have a dealership model, so you could try another dealer.

They are expensive panels, so they should fit properly. Maybe the one to the left is iffy? Perhaps dry fit the next ones for your approval before fitting. Mine are on a wall with a load of other stuff, so not so focal.

I have the same concrete finish but not in a shower. They were loc fit and I had to give them a good wiggle and a bit of in and out to get them snug. I did not use adhesive, so that may have made a difference. Even then, some just seemed to mate better than others. The darker colour is probably more forgiving.

Even if you pass it may be worth spending a day or so plugging any gaps with foam or tape or OSB. It is annoying when you have plasterboard on dabs. You can get SAP to treat the space between plasterboard and wall as a low-e gap, which add to insulation. The reality is that mostly it allows cold outside air to freely circulate.

You really don't want to be plastering until the place is completely watertight.

Perhaps the building in in the curtilage of the original farmhouse. Do they post a planning notice near to the property? You seem to be getting very vexed by this. What negative impact will it have on you?

Was the test for SAP compliance and if so, what is the target number?

I guess RCD / MCB trips are the most likely. Does the ups do surge protection too?

Have they ever died from power outage, other than because of ups fault?