I am trying to patch a small hole where it used to have a prv pipe (10 to 15mm)from the old boiler. I tried to use mortar but couldn't manage to shove it into the hole for more than 5mm. Should I have used expanding foam as backing? Or just use silicone instead?
The wall is a single skin solid...
Looking for some advice on the best way to insulate the ceiling of my garage.
It’s an attached garage and a heated room above built in the 80s. The garage ceiling isn’t currently insulated, and during winter, the floor above gets quite cold, even though it’s carpeted.
I'm planning to insulate...