Fiber Glass Insulation and Vapor Barriers

Fiber Glass Insulation and Vapor Barriers

Fiber Glass Insulation and Vapor Barriers Fiber Glass Insulation and Vapor Barriers Fiber Glass Insulation and Vapor Barriers 3m air and vapor barrier 3015

Fiber Glass Insulation and Vapor Barriers protect your property from moisture and the complications that lead from it.

Fiber Glass Insulation and Vapor Barriers can help manage and prevent water vapor’s that will natural enter a building through open doors, windows or other gaps in the building exterior.  If this moisture is left unattended, however, it can cause many serious problems, compromising both structural integrity and sustainability. Maintaining a dry building envelope is crucial for the long-term structural health of your building. These can be managed by Fiber Glass Insulation and Vapor Barriers.

When water is trapped inside a wall cavity for an extended period of time, moisture can cause eventually deteriorate or corrode of wood, sheet-rock, and even steel. In addition, wet insulation loses R-Value, which makes the building less energy efficient. This moisture can also lead to that scourge of any building Mold. Mold growth is caused when airborne mold spores make contact with wood- or paper-based materials within your wall or ceiling. When exposed to moisture for an extended amount of time, wood- and paper-based materials are a prime food source for mold. This mold growth can lower the indoor air quality of a building and have a negative impact on the comfort and respiratory health of occupants. These problems can be controlled however by high-performance components – Fiber Glass Insulation and Vapor Barriers.

Fiber Glass Insulation and Vapor Barriers

Fiberglass has always been one of the most common insulation materials on the market, due to its strong performance in a variety of areas. Widely known for its high thermal resistance, fire resistance, and sound absorbency, it is also an effective weapon against moisture and mold damage. Fiberglass insulation neither absorbs nor holds water and will not deteriorate from extended moisture exposure. Being an inert material, it is a non-viable food source for mold and will not support mold growth.

Fiberglass insulation cannot fight the battle against moisture intrusion alone, however. Vapor barriers applied over the face of the insulation provide additional benefits in the fight against moisture.It is the combination of Fiber Glass Insulation and Vapor Barriers that provide a substantial protection for your home.

Usually composed of a thin film, such as polyethylene, vapor barriers are used to retard or prevent water vapor diffusion into a wall, ceiling or floor during the cold winter. The performance of these materials is gauged by their water vapor transmission rate or permeance. Permeance is the rate at which a measured amount of water vapor transfers through a known surface area under standard atmospheric pressure conditions. Water vapor permeance is defined in nanograms (ng) of water vapor, per second, per square meter, per Pascal.

Type 1 vapor barriers are very restrictive to moisture transmission, having a permeance less than or equal to 15 ng/(Pa·s·m2) of moisture passage. These barriers are required where there is cladding on the house that doesn’t allow enough drying to the outside. Type 2 vapor barriers, the basic vapor barrier for ordinary conditions, are defined as having a permeance less than or equal to 60 ng/(Pa·s·m2) of moisture passage. Prevalent vapor barrier materials used over the years have been polyethylene (Type 1), asphalt-impregnated or asphalt-coated kraft paper (Type 2) and foil skrim kraft (FSK) (Type 1) – paper-backed aluminum. More detailed information can be obtained by clicking HERE

In addition to Fiber Glass Insulation and Vapor Barriers, the most successful moisture management strategies include a water resistive barrier, an interior air barrier and an exterior wind barrier to reduce the potential for seasonal surface condensation and rainwater penetration.

Contact team at Alpine Roofing Construction with 17 years experience can create a roofing system with the Fiber Glass Insulation and Vapor Barriers to protect your home of commercial property against moisture.