Jilly

Well done on the house and getting the job!

Above the insulation is right in a cold roof.

I’m late to the party, but enjoying reading this thread. I was going to suggest you could use some netting to suspend your rock wool between the roof joists to get the air gap, and/or to hold the stuff in place before you boarded out, but I was too late. I’ve seen it done to hold rock wool insulation under floorboards in an old house.

Were you having a moment? Sorry, couldn’t resist that 😂

Their fees could go bonkers if that is the start, as you could need many more surveys, depending what they find. It might be because they are placing several surveyors at the same time? I found out too late that there is a big variation in costs, so definitely get more quotes. The Bat Licence itself is about £1K . Also the mitigation itself is up for discussion BEFORE the licence is obtained, so discuss siting of boxes etc to suit your needs.

Adding trellis is more lightweight and might look more aesthetic?

So sorry you’ve been through such a lot. You sound like a very determined person though, and that will get you through.

Meaco dehumidifiers are very good.

A terraced garden can be very interesting and attractive.

I might be missing something, but why would there be one before the house is built? Unless it’s a demolish and rebuild? Or is it a brownfield site? Or does it have planning permission and digging has been started?

If you have an uber insulated and airtight house with MHRV it should use very little energy, whatever method you chose.

Steamy Tea will tell you that might well not be enough insulation under the ufh. A lot of people here have put an electric Willis heater or two as a back up to a ASHP, rather than a boiler.

Hello! You might find you need planning permission for external wall insulation (EWI) as it will have to go under something, which will change the appearance. All of the window reveals would need adjusting. Cavity wall insulation would be ok, with caveats. Someone will be along to advise as I only have experience of 1970s retrofit which caused damp.

Yes, but the majority of women of the generation we are talking about, (and still do) had to take time off to have children and so haven’t paid enough NI.

So are you just replacing, rather than creating an additional dwelling?