The house ground floor is now fully covered with 100mm thick celotex insulation boards. These are cut and fitted neatly together to form the underfloor on which the screed will be poured.

As the concrete subfloor beneath this is not entirely level, we have laid sand to compensate and to ensure that the boards sit as evenly as possible.* readers note – when I say WE I actually mean Husband…

The joints between the insulation blocks have then been taped securely to make sure that there isn’t any movement.
Finally a plastic membrane is laid and sealed on top of it all. This is the layer that the underfloor heating pipes will be laid upon prior to the screed being poured.

And I thought it was just popping a few boards down and running pipes over them… I guess this is why people often get surprised at how long seemingly simple jobs take. Like me 😬.
We live and learn.
We crack on.


All this insulating is a BIG job! It will all be worth it when you sit in your cosy home with low heating bills.
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Thank you! We certainly hope so. It’s a windy, very exposed croft so anything we can do now to save on fuel costs later will be needed 👍
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All the work will pay off in the future, when you are secure and cozy in your insulated den. I must say, your rogress is amazing!.
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