damp course


Also found in: Dictionary, Thesaurus, Wikipedia.

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 ?
Dampness in the wall migrating to the surface takes the salts with it, which means the damp course is not working.
The damp course around the third or fourth row of bricks lasts as long as the building but a common problem is bridging it.
It may be practical but you can hardly invite the neighbours round to admire the new damp course or make themselves comfortable on the central heating.
Ensure airbricks can breath and that flower bed or paving close to the house is six inches below damp course level and slopes away to shed water.
It now has a damp course and new, level, floor joists.
Look around the base of the house - Ensure any soil, gravel or debris is well below the damp course.
The 10-year-old, owned by Pell-Mell Partners, had five lengths to spare over Damp Course.
Alan planned to put a damp course underneath the flagstones but when he took out the cement, he found the floor was uneven and all the stones were of different shapes.
Christine's house needs a new damp course and sister Katie said her kitchen will also need to be replaced because of problems caused by damp.
I know I will probably have to take the plaster off to the brickwork, but is there a way I could do the damp course myself?
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.