damp course


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damp course

[¦damp ‚kȯrs]
(civil engineering)
A layer of impervious material placed horizontally in a wall to keep out water.

damp course, damp check, dampproof course

In masonry, an impervious horizontal layer of material (as tile, dense limestone, metal, etc.) to prevent the capillary entrance of moisture from the ground or a lower course, but used also below copings, above roof level in chimneys, and elsewhere to stop downward seepage.
References in periodicals archive ?
It would be best to relay the stone slabs to get rid of the ponding but in addition, the replacement floor joists and boards should be stopped short of the wall, protected by damp course and kept well ventilated.
The damp course around the third or fourth row of bricks lasts as long as the building but a common problem is bridging it.
RISING DAMP pounds 1,472 for providing new damp course
If your home doesn't have a damp course, or it's defective, you will need the professionals.
It now has a damp course and new, level, floor joists.
The men said they were digging outside and asked them to go into the basement to check the damp course.
Titan director Rob Murdoch said: "Greenfield Construction's people are among the first to go onto a new site, doing what is necessary to prepare the ground and laying foundations up to damp course level.
If it is against the house, don't go higher than the damp course.
The most common type is the installation of a chemically injected damp course, which involves drilling a series of holes near to the bottom of the wall and injecting either a liquid or cream substance which slowly fills the cavities in the masonry, forming a barrier against rising damp.
QAFTER having a damp course done five years ago, we covered the walls in lining paper and then emulsion.
Basically, this enshrines your right to do things like cutting into the wall to take one end of an RSJ, or slicing all the way through it in order to install a new damp course.
He agreed to let someone visit and after an assessment was persuaded he needed a complete damp course in the cellar for PS4,000.