Membrane Systems

/Membrane Systems
Membrane Systems 2018-03-07T18:13:12+00:00

Cementitous Membrane

A flexible cementitous waterproofing membrane for both positive and negative side waterproofing of concrete and masonry potable structures.

Uses:

Waterproofing of concrete and masonry structures (water fountains) both new and old where live cracks are present, the membrane that we use is a flexible cementitous membrane and does not rely on crystal growth to achieve its waterproofing. As a result it can be used on most masonry surfaces, including sand stone, provided that the surfaces are prepared.

This type of membrane is excellent for solving the problem of water seepage through concrete & masonry where live cracks are present in both new and old structures.

The membrane that we use is ideal for application in potable water structures and is non toxic also suitable for permanent sunlight exposure after curing and has been tested to withstand a water head of 70 meters.

Whittlesea fountain:

In this situation what we were faced with was the internal side of the fountain had a PVC layer glued on membrane system. This could have been alright under certain situations, but in this fountain there were many internal lights and fittings which were protruding through the PVC lining. This would have resulted in many leaks which in turn would seep through the porous and cracked concrete.

The lights and PVC lining had to be removed completely. Once this was done, the surface of the wall and floor had to be cleaned. The surface was simply grit blasted and after this was done we applied a flexible cementitous membrane straight onto the original concrete wall & floor. This sealed all the cracks and the complete inside of the fountain. The lights were then securely refitted onto the floor without any gaps in between.

Elastomeric Waterproofing Liquid Membrane Coating

All Waterproofing Membranes have been specializing in liquid membranes for some years now.

In that time we have noticed that there were a lot of liquid membrane coatings on the market, but very few are what we call acceptable. All Waterproofing Membranes only uses the highest quality membranes.

We simply found the cheap coatings are of inferior quality, and they either crack, deteriorate or just fail.

QUESTION: What application can I apply to, using a liquid membrane?

ANSWER: This question I am often asked and the truth is, you can apply a liquid membrane coating over a wide range of applications, from your roof either tiles, iron, asbestos, paths and decks, only the preparation & primers are different.

Some of the coatings that we use and recommend are approved in the encapsulation of asbestos, and has up to 600% elasticity and is UV resistant.

Also, membrane coatings can be used if you have a rusted hole in a gutter and can be the size of your fist. With the right process & application this can be fixed and will outlast the remainder of the area.

The Elastomeric Waterproofing Membrane liquid coating that we use has a proven track record of 25 years plus.

Below are some examples of roofs that have been repaired and coated:

ALM:

Polymer Bitumen Flame Applied Waterproofing Membrane

This form of membrane can be used as a continuous waterproofing membrane for foundations, basements, tunnels, concrete roofs etc. and is applied by flame bonding.

Advantages of this type of membrane:

  • Uniform thickness

  • Membrane can be polyester re-enforced ensuring dimensional stability, whilst allowing flexibility during applications & service

  • Excellent stability at high & low temperatures

  • Higher tear & impact resistance & excellent elasticity even at low temperatures than other membranes

  • Can be coated with a paint for colour coding

  • Available in plain or mineral finish for light foot traffic

All Waterproofing Membranes are approved applicators of this membrane as it is extremely important that it s applied correctly otherwise it will fail.