Occasionally, I find the damp-proof course
has been lost as the mortar joint has been repointed or the external render taken down to ground level.
Below the damp-proof course
the bricks are constantly sucking up moisture from the ground.
Roofs, gutters, flashings, patios, gardens and in some instances damp-proof courses
are all critical in determining the overall condition of our buildings.
If the damp is at the bottom of the wall, it's probably rising damp, in which case you'll need a specialist to install a new damp-proof course
NEVER lay paving above your house's damp-proof course
Often, after landscaping work, paving gets laid over the existing ground, raising it above the damp-proof course
Rising damp: This occurs, if there is a problem with the damp-proof course
Many or even most older homes now have courses inserted retrospectively into the main supporting walls but almost without exception no damp-proof course
was installed retrospectively into the walls that support the floors, and that's where they are needed most.
If your home doesn't have a damp-proof course
, or it's defective, you'll need a damp specialist to install one, but it may be that the course is being prevented from doing its job.
To prevent the patio affecting your home's damp-proof course
, its surface must be at least 15cm below the course, although you can reduce this to 10cm if you put a 30cm-wide row of gravel between the patio and the house.
Hunt told her she needed work on her ridge tiles and chimney stacks as well as repointing and a new damp-proof course
on a back wall.
I'm always amused when vendors smugly tell me that they have had a damp-proof course
fitted to their older home.