I think the fact that the air in the holes are sealed off, makes it a good insulator. Almost like a thermos flask. Just my opinion.
Blocks for the lights now installed. They are now focussing on getting the outside prepaired for the damp proofing, because I will only be able to do the pipes for the wires over the week end.
Blocks for the lights now installed. They are now focussing on getting the outside prepaired for the damp proofing, because I will only be able to do the pipes for the wires over the week end.




