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2025-01-27 08:57本頁(yè)面
【正文】 lding exterior wall cladding system that provides exterior walls with an insulated finished surface and waterproofing in an integrated posite material system. Contents ? 1 Terminology ? 2 How EIFS is installed ? 3 Composition and types of EIFS ? 4 History of EIFS ? 5 Legal issues ? 6 Marketing of EIFS and The EIFS Industry ? 7 EIFS Architectural Details ? 8 References Terminology Although often called synthetic stucco, EIFS is not stucco. Traditional stucco, otherwise known as Portland Cement Plaster, is a centuriesold noninsulating material. Stucco consists of sand, Portland Cement, and water, and is a hard, dense, thick, noninsulating material. EIFS is a lightweight synthetic wall cladding that includes foam plastic insulation and thin synthetic coatings. There are also specialty stuccos that use synthetic materials but no insulation, and these are also not EIFS either. A mon example is what is called onecoat stucco, which is a thick, synthetic stucco applied in a single layer (traditional stucco is applied in 3 layers). There is also an EIFSlike product called a DirectApplied Finish System (or DAFS), which is essentially an EIFS but without the insulation, and has quite different characteristics. EIFS are proprietary systems of a particular EIFS producer and consist of specific ponents. EIFS are not generic products made from mon separate materials. To function properly, EIFS needs to be architecturally designed and installed as a system. There are a number of versions of EIFS. The most basic and mon EIFS is called a barrier EIFS (also known as a traditional or conventional EIFS). Another type is called an EIFS with Drainage, which is a barrier EIFS to which a water drainage capability has been added. A basic EIFS includes only the insulation and EIFS materials (coatings, adhesives, etc.). Other types of EIFS may also include plastic edge trim, waterresistive barriers, a drainage cavity, and other accessories. The technical definition of an EIFS does not include wall framing, sheathing, flashings, caulking, water barriers, windows, doors, and other wall ponents. However, as of recently, architects have begun specifying flashings, sealants, and wiring fasteners (such as Viperstrap) as being a part of the EIFS scope of work, essentially requiring EIFS contractors to carry out that work as well. The technical national consensus standard for the definition of an EIFS, as published by ASTM International anization, does not include flashing or sealants as part of the EIFS. Many of the EIFS manufacturers have their own standard details showing typical building conditions for window and door flashings, control joints, inside/outside corners, perations, and joints at dissimilar materials which should be followed for that manufacturers warranty.
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