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Face-Sealed EIFS and Sealant Joints

ProCoat - February 25, 2020

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EIFS, Exterior Insulation and Finish Systems, are appropriate for nearly any location if the proper drainage measures are designed and executed. In low-drying or high-humidity locations, ones with substantial annual rainfall, moisture must be prevented from entering at joint locations. And water should also be allowed to drain via an designed cavity that prevents penetration into the interior gypsum and other insulating materials.

By limiting temperature transfer from the outside, EIFS construction layers are engineered to act as a blanket to lower energy costs substantially. However, when that blanket becomes wet and will not dry in a short ime, problems begin to arise. The issues can be in the form of mold development and deterioration of the material components.

Drainage and Seals

Two separate measures are employed to combat moisture and reduce the potential for water and high humidity damage to EIFS layers. These measures should be properly executed during the initial construction or remodel.

Drainage Plane- Creating a drainage cavity or gap between the outer EIFS surface and the interior glass-matted gypsum allows moisture that penetrates through the stucco-like surface to drain downward and out through the base of the wall. This drainable EIFS assembly process eliminates most of the moisture retention problems that plagued earlier versions of EIFS.

Sealant Joints- The other major culprit to accumulating moisture in EIFS construction are the joints that surround windows, balconies, and doors. Also, rain may flow through the roof joints into the EIFS lamina if these are not properly sealed. In areas where drying periods are longer or rain is less frequent, the materials my dry out within a reasonable time. But in rainy areas, these potential problem spots can allow moisture to enter without proper sealing.

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EIFS

To ensure a perfect sealing process in every potential trouble spot, Building Science recommends that the sealant must:

  • Adhere well to the lamina
  • Be ultraviolet light resistant
  • Not be stronger than the base coat bond strength
  • Be affordable

If joint sealants are applied perfectly, the building owner should not experience problems. Regular inspection to determine whether the sealants are holding should identify problems that may be developing.

Sealants can be reapplied when necessary to prevent further damage.

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EIFS installation must be performed perfectly to be fully effective. In high precipitation and excessive humidity, moisture can develop anywhere.

If you have questions regarding the practicality and economy of EIFS in future construction and remodeling, be sure to seek expert advice. The cladding professionals at ProCoat Systems are available to discuss the technical aspects of EIFS construction for your building.

 

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EIFS finish coats

EIFS Material – Part of the Perfect Wall

ProCoat - January 3, 2019
EIFS

PHOTO CREDIT: http://blog.stocorp.com

Buildings of every type are intended to provide essential shelter for everything within. Whether the structure is designed to protect people, animals, equipment, or products, roofing and walls should be able to resist rain, snow, wind, and other natural forces. And in most cases, the walls of buildings that house people and temperature or moisture-sensitive goods should have ample thermal retention and moisture resistant properties. (more…)




EIFS construction

Understanding the Elements of EIFS Construction

ProCoat - March 2, 2018

EIFS constructionExterior Insulation and Finish Systems (EIFS) is becoming an increasingly popular method of construction to create a beautiful, durable, and highly energy efficient cladding system for any building. EIFS have been around for years although improved techniques and design features have developed to make these even more efficient, long-lasting, and moisture resistant. (more…)




EIFS finish coats

What is EIFS Stucco?

ProCoat - February 7, 2018
EIFS

PHOTO CREDIT: http://blog.stocorp.com

The newest versions of EIFS, Exterior Insulation and Finish Systems, are durable, attractive, and highly energy efficient. These characteristics are a result of a scientifically refined system of layered materials that restrict energy loss, eliminate moisture accumulation, and provide a beautiful and lasting exterior appearance. While each layer has an important function, the exterior surface is comprised of a stucco-like material that offers substantial practical and aesthetic value. (more…)




EIFS finish coat

Are You Confused by the Difference Between Stucco and EIFS?

ProCoat - December 18, 2017

exterior eifs

Many people view two entirely different cladding systems, stucco and EIFS, as the same.  It is true that on the surface, these appear to be similar. But what is going on beneath the outer layer is the difference.

Stucco is a durable and attractive exterior coating for buildings and homes. The material may be applied over wood, steel, or masonry subsurfaces to provide an distinct and beautiful appearance. Stucco offers a truly classic look and requires very little maintenance. (more…)




eifs

Why the Mesh in an EIFS System?

ProCoat - December 15, 2017

eifs or stucco

EIFS (Exterior Insulation and Finish Systems) have been around for decades. This building method is intended to create a cladding system that provides the highest level of energy conservation while offering an attractive, low maintenance option for home and business owners.

In recent years, significant improvements have enhanced the performance of EIFS and eliminated all issues pertaining to moisture retention and durability. Advances have come from new techniques and the use of new technologies and materials. (more…)




EIFS finish coat

The Durability of Exterior EIFS Systems

ProCoat - December 11, 2017

EIFS exterior finishes

 

While curb appeal and durability are desirable attributes of any structure, homeowners and commercial building managers also look for comfort, energy efficiency, and low-cost maintenance. Various exterior claddings suit particular aesthetic tastes, yet one finish stands out as the most durable and energy efficient of all. (more…)




stucco and eifs

Protecting Stucco and EIFS from Rain Damage

ProCoat - November 20, 2017

stucco and eifs

Rain and moisture accumulation can create serious problems for any building cladding. With improperly applied stucco or EIFS (Exterior Insulation and Finish Systems), water that finds its way under the exterior surfaces and remains can cause mold development, deterioration, or excessive cracking if the material remains damp for an extended period. (more…)




eifs

Is Your EIFS or Stucco Cracking?

ProCoat - November 13, 2017

eifs or stucco

While EIFS (Exterior Insulation and Finish Systems) exterior cladding and stucco may have a very similar appearance, the composition of these is different. The EIFS cladding, with several insulating and moisture-draining layers beneath, consists of polymeric-bonded aggregate and reinforced cement. Stucco, on the other hand, is a centuries-old material made from Portland cement and lime bonded with sand and water. (more…)




EIFS finish coat

Effects of Climate on EIFS Exterior Finishes

ProCoat - November 6, 2017

 

EIFS exterior finishes

Exterior Insulation and Finish Systems, popularly known as “EIFS”, is an exterior building cladding system designed decades ago to provide energy efficiency with integrated layers of various composite materials. Designed to act as a winter coat for any structure, the EIFS system is more than a simple exterior layer intended to add aesthetic value and protection. (more…)




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