
EWI

EWI stand for External Wall Insulation. There are many systems from rail systems to Warmshell systems, but the most common one used on domestic properties is a EPS stuck to the exterior of a property by adhesive and fixings to create a warm shell around your home.
There are also a lot of different types of insulation boards on the market like wood fibre, mineral fibre and EPS (expanded polystyrene). EPS is the most commonly used for most cases, but will depend on a case by case study.
Once the insulation is fitted a thin coat render system is then applied on top. The renders used here, has a very high level of binders and polymers in to help stick to, and move with the insulation. These renders also have breathable qualities, helping moisture to escape the property and stopping the build up of mould. The whole structure will have a nylon reinforcing mesh embedded in the basecoat for strength and rigidity. Like with all thin coat renders it is finished to a flat, smooth finish ready for a topcoat to be applied on the top.
Once the basecoat is complete. its just a case of choosing a topcoat. We would recommend a silicone or acrylic topcoat as these are the most superior and long lasting on the market.
If a full guarantee is needed, we would need to seek a manufacturers rep to give us a specific specification about the project, and have a rep sign it off. There are lots of options and guarantees on the market, please get in contact and we will be more than happy to help.
