Rising damp is a common form of dampness, particularly in older buildings. It occurs when groundwater rises up through walls, floors and masonry via capillary action. Capillary action is the ability of a liquid to flow along narrow spaces, counter to the forces of gravity. Bricks and mortar can be very porous and contain many fine capillaries, through which water can rise.
Most modern properties are built with a damp-proof course, usually in the form of an impermeable plastic membrane, which is placed along a mortar line near the ground. Some properties, however, were built with no damp-proof course, or the original has failed, meaning that rising damp can occur and it is necessary to make remedial repairs.
When Safeguard Europe launched Dryzone Damp-Proofing Cream in the year 2000, the way that people treated rising damp was transformed. It is a special damp-proofing cream that is introduced along the mortar course at regular intervals by injecting it into pre-drilled holes. The Dryzone then diffuses before curing to form a continuous water-repellent barrier.
Dryzone provided a cleaner, faster and more cost effective treatment for rising damp than fluid pressure injection systems, which were the previous industry standard. This innovation transformed the industry, making damp-proofing creams the default method of treatment.
How we install the Dryzone System
In most cases it is necessary to remove the damp/salt contaminated plaster before the Dryzone System can be used..
Dryzone damp-proofing cream is injected in the usual way. The success of the Dryzone system relies on the high-level of performance provided by Dryzone damp-proofing cream in walls of all types.
The Dryshield Cream resists salts that are already present in the wall as a result of historic rising damp. It also acts as a primer for the Drygrip Adhesive – maximising bond strength to the masonry substrate.
Drygrip Adhesive has been specifically designed to provide an excellent bond onto masonry surfaces and to be resistant to moisture and salts. Dryzone System Fixing Plugs are used to hold the plasterboard in position. They are not used to hold the weight of the board – just to allow a smooth join between boards.
Apply the final skim coat using a suitable gypsum-based skim plaster. Alternatively dry-joint the boards or simply wallpaper for an even quicker result.
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