The wall at the bottom of the bay window in the main bedroom is single brick and there is no window sill.
What is the best way to insulate it, create a window sill and make sure it is sturdy enough to take a radiator?
Do we need to build an inner wall and insulate the cavity? I’m thinking insulation and plaster board may cause damp and not be strong enough to take the weight of a radiator.
Thanks for any advice.