How to renovate and waterproof a facade showing active cracks
RD-Elastoflex, a waterproofing and breathable protection membrane for walls and facades.
- high permanent elasticity and crack bridging
- breathable and permeable to water vapor
- excellent resistance over time
RD-Elastoflex + Fleece
RD-Elastoflex is a quick, simple and economical solution for a lasting renovation of concrete walls and structures as well as brick facades showing cracks that will most probably further develop.
It has a proven track record all over the world, from Brussels to New York via Croatia, Mexico and Denmark where large buildings and structures are currently protected by this system since many years.
RD-Elastoflex is unique in its kind because it combines in one product many properties that will guarantee high performance and a perfect result. Among these we find:
- a permanent elasticity of more than 600% that allows it to bridge the micro cracks, including those still to come and to keep the building dry,
- breathability and permeability to water vapor that will keep under control and regulate the indoor ambient atmosphere,
- very high resistance to bad weather and acid rain, UV rays and dirt, which will keep an aesthetically impeccable facade for years to come,
- a wide choice of colors including custom tints.
Apply in combination with the RD-Wall Fleece reinforcement mesh, the RD-Elastoflex + Fleece system will guarantee to keep the wall or facade waterproofed for many years. The special RD-Mur Fleece reinforcement mesh is specially designed to resist to movements and will prevent the waterproofing system from cracking and tearing itself apart.
The usual amount to apply to ensure good long term performance is 0.8 Kg per square meter - 78 square feet per gallon for the entire system.
The product is applied directly to the RD-Mur Fleece reinforcement veil which is placed directly on the surface!
Very high productivity
Risks of graffiti
Benefits and expected performance of the system
For the project manager/owner :
- High performance and durable system
- Water based, safe, no fire hazards
- Virtually odorless, can be used in occupied buildings without disturbing
- Wide choice of colors
- Limited downtime, possible to apply within 24 hours
For the applicator :
- SCS solution
- Easy application
- Almost no VOC
- No isocyanates
- Proven track record
- No pot-life
- One-component and quick-drying
- No need for solvents nor thinners.
Presence of an existing coating
On a smooth surface
Specifications for an airless application
The product is ready to use. Stir it mechanically for a few minutes before application. Do not add water except when clearly specified. Check before each application that the surface is free of dust, contamination or condensation.
If preparation or application has been interrupted for more than 3 days without rain or if it is located in a polluted environment, we recommend that the areas to be plastered be washed again or rinsed with a high pressure cleaner.
Application with RD-Mur Fleece
You will only apply the RD-Roof Fleece on the areas with cracks.
It usually takes two workers to apply the mesh simultaneously with the first coat of RD-Elastoflex.
Start with the highest point. Hold the roll of mesh against the wall and unroll it gradually about 50 cm - 20 inches down.
The second worker applies at the same time a layer of RD-Elastoflex on the the mesh, it will fix it in the same time to the wall.
Then, while holding the roll, gradually unroll a few meters downwards (2 to 3 m - 6 to 10 feet) and cut the mesh. The second person simultaneously applies the first layer of RD-Elastoflex over the entire surface of the mesh to fix it entirely on the walls.
If necessary, repeat the operation right next to it, overlapping the mesh on the one already installed by a minimum of 5 cm - 2 inches and cover the entire surface, gradually descending towards the groundfloor.
This operation takes the most time but is absolutely necessary to guarantee the long term performance of the system on facades with active cracks.
Allow the paint to dry for a minimum of 24 hours before applying the second coat. Depending on the weather, it can be shorter or longer.
Apply a second full coat of RD-Elastoflex over the entire surface. The amount to apply has to be homogeneous per m² and should be in line with our recommendations, it will be your guarantee for the long term performance of the RD-Elastoflex + Fleece system.
If the thickness has not been reached, do not hesitate to apply a third coat.
After 4 hours of drying at 20 ° C, the coating is dry and resistant to rain.
To be sure that you have applied the right amount of paint and that the second coat is correctly applied to the entire surface, we recommend applying two slightly different shades.