The recommended method is to apply the base coat in two passes.
Eifs siding thickness.
Eifs is available in two basic types.
As the name implies eifs with drainage helps to eliminate moisture before it has an opportunity to enter the wall cavity.
Although marketed as a maintenance free product you need to keep an eye on how it s holding up.
Eifs were first introduced in the united states in the late 1960 s and were first used on commercial buildings and later on homes.
Stotherm ci systems integrate the following key elements continuous insulation ci air moisture barrier drainage and a variety of textured finish options to create a superior sustainable wall cladding.
Using the soft styrofoam substrate allows the builder to use less of cement stucco material.
Eifs is an exterior insulation and finish system.
What is eifs siding.
What is synthetic stucco.
Why eifs problems occur.
Stotherm ci wall systems.
Integrated wall systems that deliver the best in performance sustainability and design flexibility.
Eifs is usually sprayed onto mesh that is mounted to styrofoam type of material.
The design of eifs unlike other systems brick stone siding etc does not allow the moisture to drain out.
The eifs acronym stands for exterior insulation and finish systems.
Eifs with drainage another eifs system is the predominate method of eifs applied today.
It s made of lightweight two inch thick polystyrene panels with an acrylic coating that mimics traditional stucco.
Some people call it synthetic stucco.
The insulation typically consists of extruded expanded polystyrene xps and is mechanically attached to the sheathing and or wall structure.
The problem is water intrusion and entrapment in the wall cavities.
But the picture is not nearly as black and white as many people think.
It is different to traditional stucco.
Eifs synthetic stucco siding.
The eifs exterior insulation and finishing system system shall be installed with the application instructions.
Pb eifs is the most common type in north america and historically used expanded polystyrene eps insulation adhered to the substrate with fiberglass mesh embedded in a nominal 1 16 inch 1 6 mm base coat which can receive additional layers of mesh and base coat for stronger impact resistance.
Impacts to the surface can result in cracks.
Min base coat thickness shall be sufficient to fully embed the mesh.
3 3 installation of eifs exterior insulation and finishing system a.
The stucco part of the eifs is generally less than 1 4 in thickness.
Eifs are vulnerable to damage due to the combination of a thin stucco coating over a soft base make.
Traditional cement stucco is applied in three relatively thick coats to a total thickness of nearly one inch.
A barrier wall system or a wall drainage system.
