Polyurethane Systems    Waterproof    Waterproofing Rising Damp

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Damp Proofing

Assessments and estimates of clients waterproofing issues for residential, commercial, industrial and agricultural properties.

Full assessments completed to determine the state of the existing waterproofing system. The delaminating and cracking of existing old style torch-on or membrane on flat roof areas, parapets, roofing joints are normally the result of water ingress.

Damp Proofing
No need for unnecessary time consuming work to chop out tiles (which will require replacement), application of under-tile waterproofing and screeding for new tiles – all of which is costly, noisy, messy and time consuming.

Waterproofing of balconies and showers is now simple with a clear coat Polyurethane waterproofing application (over tile application - no noise, dust, rubble or long periods of time with contractors on site).
Damp Proofing
Polyurethane systems are used in many of the same applications which were previously exclusive to Torch on / Self-adhesive membranes, acrylics and cementitious applications. The application is the same in most cases, also requiring a reinforcing membrane, but has superior adhesion and expansion/ contraction qualities with no annual or bi-annual maintenance that other torch-on and self-adhesive membrane products require.
Damp Proofing

Sealing expansion joints, structural joints and full bore outlets. Focusing on industrial floors, tiled balconies, concrete floors, concrete walls, parapet walls, IBR/ corrugated and asbestos roof joint sealing, full bore outlet applications where the use of an expansion/ contraction Polyurethane product is required.

Polyurethane joint sealer is capable of protecting crack/ joint repairs as well as structural joints, allowing up to 20% movement of the average width.

Providing excellent adhesion on all cement-based materials, brick, ceramics, glass, metals and wood.

Damp Proofing
Rising damp occurs when moisture from the ground travels up through the walls by capillary action. This means that ground water is effectively sucked up through tiny tubes in the bricks, like a series of straws. This water contains salts that also travel up through the wall.

Around the affected wall, you get other porous building materials such as plasterwork and the timber found in the floor boards, joints and skirtings. These materials will also absorb the ground water and you will find evidence of wet rot in the timber.

Generally, rising damp is first noticed by the damage it causes to the internal walls of a building. Plaster and paint can deteriorate and any wallpaper tends to loosen. A visible stain often appears on the wall in the form of a tide mark at the point where the ground water has reached. You may also see salts blooming on the internal surface. This is something often associated with rising damp and will lead to the debonding of paints and even plaster work. Externally, mortar may crumble and white salt stains may appear on the walls.

Most buildings have some form of barrier installed at the lower level of the wall to prevent water rising up in this way. It is called a damp proof course (DPC). This can be made of non-absorbent, water-resistant materials such as slate, bitumen and plastic, depending on the period in which  the property was built. Sometimes these physical DPCs may fail over time; in older houses they may not exist at all. If you don’t have a DPC or there is evidence that it has failed, then there is nothing to prevent the water from traveling up your wall.

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