These materials are spread hot and finished to a thickness of at least 12.5 mm. This expensive {damp-proof membrane} is used where there is appreciable water pressure under the floor and as ‘tanking’ to basements as described in Volume 4.
These materials are spread hot and finished to a thickness of at least 12.5 mm. This expensive {damp-proof membrane} is used where there is appreciable water pressure under the floor and as ‘tanking’ to basements as described in Volume 4.