UK Construction Journal - Issue 1 - April 2026 - Flipbook - Page 59
Welcome to RAWTA - The Roofing
and Waterproofing Test Association
It is some 30 years since the low voltage “wet” test method was developed and introduced
to the market.
Originally intended for locating the source of leaks in flat
roofs, it quickly developed into a tool for establishing the
waterproofing integrity of new installations. It is preferred
over the old system of flood testing.
High voltage “pinhole” testing as used on bridge deck
waterproofing, can often also be employed on roofs and
other structural waterproofings.
By employing a member of RAWTA, you can be confident
of true independence in testing, that will follow accepted
guidelines.
This now allows efficient handover, helping speed up internal
fit-out and construction.
UK CONSTRUCTION JOURNAL
57
