Is EIFS a combustible material?
Although the completed EIFS system looks like noncombustible stucco, it is combustible. This insulation board is combustible. Keep away from open flame, welding, and other heat sources.
Is EIFS fire resistant?
Do EIFS have a fire rating? EIFS alone do not have a fire rating. Testing has been performed to confirm that the fire resistance of an already rated wall assembly is maintained and is not reduced by the addition of EIFS. EIFS have passed the major fire resistance tests that are required by the building codes.
What is EIFS cladding?
An Exterior Insulation Finishing System (EIFS), also known as EWI (Exterior Wall Insulation Systems) or External Thermal Insulation Composite Systems (ETICS) is a type of cladding system that provides exterior walls with an insulated finished surface and waterproofing in an integrated composite material system.
What is the main problem with EIFS products?
The problems with barrier EIFS cladding all stem from water intrusion. These problems include moisture accumulation in the wall cavity, subsequent wood damage and, in more advanced cases, mold growth and the infestation of pests such as carpenter ants or termites.
Is stucco considered non combustible?
Common non-combustible materials include three-coat stucco, metal siding, and fiber cement siding.
Does stucco provide fire rating?
When properly installed against fire-resistant materials, plaster siding—also known as stucco—regularly achieves a one-hour fire rating. That means homeowners have up to an hour before the material will give into the heat of a fire and begin spreading flames into the interior walls.
What is the difference between EIFS and stucco?
Unlike traditional stucco that utilizes natural ingredients and mesh, External Insulation and Finishing Systems (EIFS) stucco uses layers that add in synthetic materials. When such layers are applied, EIFS provides more protection and insulation than traditional stucco—but it also comes with some risks.
Can you use rockwool on exterior walls?
ROCKWOOL ROXUL SAFE™ 55 & 65 are medium-density insulation products for interior and exterior firewall applications where fire resistance of at least 1 hr. is required.
Is EIFS a vapor barrier?
When you install EIFS on the exterior wall, it acts as a vapor barrier on the cold side of that wall. When fiberglass-batt insulation is then installed in the wall cavity, condensation occurs inside the wall at the (substrate) sheathing when a contrast in temperature exists from inside to outside.
Is acrylic stucco fireproof?
Stucco is more expensive than some types of cladding — vinyl and some types of wood, for example — but the surface is durable, vapor permeable, fire-resistant, and suitable for any climate, with proper detailing.
Can a stucco house burn?
Stucco is simply a fine grade of cement, a sort of artificial stone that does not burn and is not a good heat conductor.
Is stucco a non-combustible material?