Bondlast Damp Proof and Tanking Membranes

Appraisal number 805
Issued
Last updated 9 Apr 2026
Share

Description

Bondlast Damp Proof and Tanking Membranes, Bituthene® and Preprufe®, are self-adhesive or pre-applied DPM and tanking membranes for basement retaining walls and floors. They are applied under floor slabs and foundations and to the exterior face of basement retaining walls to prevent liquid water or water vapour penetrating to the interior face in spaces where moisture may cause damage.

Consenting instructions

Always refer to the Appraisal in full and the technical literature.

Appraisal holder details

DGL Operations Ltd t/a Bondlast

warehouse
24-28 Lady Ruby Drive, East Tamaki, Auckland, 2013