Hot pitch or bitumen
A continuous layer of hot applied coal-tar pitch or soft bitumen is poured on the surface and spread to a […]
Glossary
Glossary
Glossary
Bitumen sheet
Sheets of bitumen with hessian, fibre or mineral fibre base are spread on the concrete oversite or on a blinding
Glossary
Mastic asphalt or pitch mastic
These materials are spread hot and finished to a thickness of at least 12.5 mm. This expensive {damp-proof membrane} is
Glossary
Polymer-based sheets
Polymer-based sheets are thinner than bitumen sheets and are used where the thicker {bitumen} dpc mortar joint would be unsightly.
Glossary
Mastic asphalt
Mastic {asphalt}, spread hot in one coat to a thickness of 13 mm, is a semi-rigid dpc, impervious to moisture
Glossary
Rigid damp-proof courses
Up to the twentieth century, damp-proof courses in walls were not common. The inevitability of some moisture rising in walling
Glossary
Brick damp-proof courses
Two or three courses of dense, semi-engineering or engineering bricks were laid in hydraulic lime and later cement mortar. There
Glossary
Damp-proof courses in cavity walls
A cavity wall is built as two leaves separated by a cavity. The purpose of the cavity is to act