"Generally, sealants for Exterior Wall Applications have an effective life span of 10 to 13 years or less. Knowing
the signs of failing sealants, as well as the proper time to replace them is critical in maintaining the Weatherproofing of your Home or Building."
It has been said, that the Integrity of a Structure is often only as good as it's Sealants. Sealants are materials that are placed in joints in buildings, pavings
and other structures where a weather-tight seal is needed and to accommodate
anticipated movement in a monolithic surface or at the interface between
various building elements.
Or To Put It More Simply, Wherever Two Dissimilar Surfaces Are Joined Together, You Will Find Sealants.
They are often found where your home or building's cladding, be it Brick, Wood, or Synthetic Stucco, meets Doors, Windows, Roofing, or Foundations. Formulated with High Performance Elastomers, Joint Sealants ensure outstanding weatherproofing and protection against the most aggressive conditions. Typical Sealed Building Products and Material Systems Include:
Brick and other Masonry Structures Wood, Plywood, and Cement-Based Siding
Dryvit or EIFS (Exterior Insulation and Finish Systems)
Stone, Manufactured Stone, Cultured Stone
Vinyl and Aluminum Siding
*(Systems include Doors, Windows, Skylights)
Sealant Terminology-The Basics
main difference between Caulks and Sealants is that a Caulk is any low or intermediate performance compound, typically being lower quality and having limited service life. A Sealant typically refers to a high performance compound having more expensive ingredients, little shrinkage, excellent weathering and UV resistance, and providing long service life cycles from 10 – 20 years.
Basic Types of Sealants
Although, there are a plethora of different Sealants, each with a specific function, we will focus on the type most often used in Residential and Commercial Construction. These are;
Low Modulus Sealants – Creates low stress at the sealant bond line. Usually has a higher movement capability.
Medium Modulus Sealants – Typically a general purpose sealant that can be used for the majority of elastomeric sealant applications
High Modulus Sealants – Not used for moving joints, typically used for glazing applications
Although each of these Sealants have their place in the construction process, they each have very different qualities, and must be selected and installed properly to ensure a long lasting and weatherproof seal. Most of the Sealants we install are either Low or Medium Modulus Sealants, and again, each have their specific uses.
What Sealants Do
No matter what the application, a sealant has three basic functions.
It fills a gap between two or more substrates.
It forms a barrier through the physical properties of the sealant itself and by adhesion to the substrate.
It maintains sealing properties for the expected lifetime, service conditions and environments.
As this Illustration shows, Sealants must be installed properly to be effective.
The proper preparation of the substrates ensures that the Sealants we install will stand the test of time, and protect your Home or Building for years to come. We also work with you to help select the right color to match the Type and Finish of your properties Exterior Cladding, and blend in beautifully with the rest of your properties exterior.
At The Build Seal Group, we have extensive experience with the application of all types of Sealant Systems, including those used for Building Facades, Residential Buildings, Expansion Joints, and Dryvit/EIFS Cladding Systems, and all types of interior caulking, including
those used as fire barriers, from top name manufacturers like these fine companies.