You are using an outdated browser version not supported by this website.
Click here to upgrade your browser

Adrian Crow
Adrian Crow
on Exterior Waterproofing
Senior Technical Advisor Onsite

Adrian is the Allco Site Inspector for the greater Auckland area. He has a background in engineering with over 25 years experience, and is dedicated to ensuring all Volclay membranes are installed correctly for reliable watertightness.

26 August 2019

Using Waterproofing Membranes as Ground Vapour Barriers

Allco bentonite 1

We are often asked whether waterproofing membranes function as vapour barriers. The answer to this question is not as straightforward as with other waterproofing membranes. 

Read all

23 May 2019

Below-Ground Structural Design for Tanking

Volclay Voltex Allco3

Continuing from my previous blog and the question of design, I look at considerations for ensuring an effective waterproofing solution. 

Read all

21 February 2019

Below-Ground-Waterproofing: Getting it Right the First Time

allco voltec application mission bay copy

Combined meetings with architects, engineers, geo-technicians, contractors, and in the case of waterproofing — a good technical advisor, provide the knowledge to prevent excessive design alterations after construction has commenced.

Read all

18 October 2018

Bentonite Waterproofing and Wet/Dry Cycling


There is no aspect of bentonite waterproofing that is as misunderstood as how it responds to wet/dry cycling.

Read all

28 September 2018

Property Line Wall Substrate Preparation


Below-grade shoring wall construction often proves to be difficult to obtain and maintain along the project site perimeter. 

Read all

23 August 2018

Testing Water Before Installing Membrane Systems

test water conditions for membrane

A detailed discussion of the water/soil compatibility test and its importance in the design of any below-grade waterproofing system.

Read all

19 July 2018

Backfilling Bentonite Membranes

Backfilled Walls Waterproofing 16 9

This month I look at the provision of containment pressure to maintain the effectiveness of bentonite tanking membranes under both static and seismic conditions. 

Read all

21 June 2018

Time to Talk Tanking in the Wet

tanking in the wet

Mitigating the risk of over-hydration is key to the success of a bentonite membrane — especially in wet conditions. 

Read all

Get a free weekly digest of essential news

New and updated architectural products, design solutions, inspiration, technical advice and more when you sign up for EBOSS.