EIFS is one of the more popular type of exterior wall finishing systems that consists of an insulated finished surface complete with waterproofing as part of a greater integrated composite material system. It is often called “synthetic stucco”, but EIFS is not stucco and various systems of EIFS exist. The most common is barrier EIFS and basic EIFS which is in turn also known as conventional EIFS. Water drainage capacity and capabilities have been added to an EIFS systems, these systems are known as EIFS with Drainage.
The advantages of EIFS is not just the durability and the reliability, but the functionality along with the beauty of the finish and best part they can be moulded in to architectural details. EIFS mouldings, more commonly referred to as stucco mouldings are offered in a diversity of sizes and shapes. They are broadly used on residential and commercial projects in North America and are recognized all around the globe. EIFS mouldings are typically attached to the outer side of the exterior walls utilizing mechanical fasteners or an adhesive. Adhesives are commonly used to attach EIFS to concrete substrates, gypsum board or cement board. EIFS comprises of many layers that are installed in the followed sequence. The most basic EIFS (a barrier EIFS) consists of 4 layers.
1. The first of the layers is a High-Performance Vapor Barrier with a Non-cementitious Water Resistive Membrane.
2. Next is a layer of foam plastic insulation (also called simply “foam”) that comes in the format of sheets. Expanded Polystyrene is a type of insulated most EIFS use, that is also called EPS.
3. The third is a reinforced layer that is applied onto the face of the insulation, comprising of a fiberglass strengthening network.
4. The last topcoat is a colored and textured paint-like material that is applied via trowel and very rarely by spraying. A wide range of textures and colors are present along with custom color options. The types of available textures include rough “stucco-like” material, smooth surfaces, embedded stone chips, multi-color and even brick-like appearances. This layer is known as the finish coat.