damp-proof course

And for a garden wall to be dry it will need a damp-proof course, like a house does, and coping stones with drip details to protect it from rain.

A You should have air bricks just above the damp-proof course - check the ground outside hasn't risen over the years and blocked them.

You ideally need to re-lay the floor with a damp-proof course, but the easiest solution is to simply lay porcelain tiles directly on the concrete as these are waterproof.

Can I insulate over the damp-proof course to the floor or do I leave a gap at the bottom of the wall so the damp-proof course remains exposed?

These drip down on to the ground and the splashback can soak the wall well above the damp-proof course. This splashback will eventually soak through to the inside face.

Do I need a damp-proof course? - Norma Howarth, Bolton, Lancs

If your home doesn't have a damp-proof course, or it's defective, you'll need a damp specialist to install one.

The damp-proof course consisted of three courses of blue brick.

If your home's damp-proof course is being prevented from doing its job properly, this can also cause damp.

This is unlike, say, the choice of the damp-proof course. In varying degrees materials are of necessity part of architectural thought'.

Faults in a damp-proof course may allow water to rise from the ground and soak the wall.

The last thing to check is the damp-proof course which is low down on the wall.