ROCKWOOL PLUS™ MB is a lightweight, semi-rigid mineral wool batt insulation designed for pre-engineered metal building construction where an hourly fire rating is not required.

It is non-combustible and fire resistant, and will not produce toxic smoke or promote flame spread. As a result, it provides high-temperature fire protection, particularly when a fire separation wall is required.

ROCKWOOL PLUS™ MB also helps to increase energy efficiency and improve thermal stability. Strong and durable onsite, it is easy to cut and install, and can contribute to earning LEED® points.

This product is recommended for installation on the interior side of a watertight metal cladding. It is not recommended for use in a rainscreen or cavity wall application where it may be exposed to the elements during construction or in situ.

Properties

• Lightweight, fire-resistant and sound absorbent
• Strong—well suited for site durability
• Easy to install, easy to cut
• Water and moisture resistant—maintains R-value even when wet
• Does not rot or promote the growth of mildew, fungi or bacteria
• Sag-resistant for tight fits; high density ROCKWOOL PLUS™ MB never loses shape
• Consistent thermal performances with high R-Values