Exterior Insulation Finishing System (EIFS)
Exterior Insulation Finishing System (EIFS), also known as EWI (Exterior Wall Insulation Systems) or External Thermal Insulation Composite Systems (ETICS) ,is an exterior wall cladding that utilizes rigid insulation boards on the exterior of the wall sheathing with a plaster appearance exterior skin.
EIFS is available in two basic types: a barrier wall system or a wall drainage system. Barrier EIFS wall systems rely primarily on the base coat portion of the exterior skin to resist water penetration.
Therefore, all other components of the exterior wall must either be barrier type systems or be properly sealed and flashed to prevent water from migrating behind the EIFS and into the underlying walls or interiors. Wall drainage EIFS systems are similar to cavity walls; they are installed over a weather barrier behind the insulation that acts as a secondary drainage plane. The weather barrier must be properly flashed and coordinated with all other portions of the exterior wall to prevent water from migrating into the underlying walls or interiors.
What is EIFS insulation made of?
The insulation typically consists of extruded expanded polystyrene (XPS) and is mechanically attached to the sheathing and or wall structure. EIFS is available in two basic types: a barrier wall system or a wall drainage system.
Can you pressure wash EIFS?
Cleaning EIFS should be done by a skilled professional. The best way to clean EIFS is to use high water volume coupled with low water pressure and non-abrasive cleaners. Do not use caustic chemicals or abrasive cleaning techniques, which will permanently damage the finish.
Anxin cellulose ether products can be widely used for adhesive mortars and the embedding mortars in EIFS. It can make mortars have the appropriate consistency, not sagging, not sticky to the trowel in use, feel light and smooth workability during operation, easy to smear with interruption and maintain the finished patterns.
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