Mineral wool is any fibrous material formed by spinning or drawing molten mineral or rock materials such as slag and ceramics. It was first manufactured in the 19th century. Applications include therm
Mineral wool close-up
Mineral wool pipe covering applied to a steel pipe for a fire test
Common insulation applications in an apartment building
An article from the Niagara Districts Post-War Series published by The Standard in October 1946. The article is focused on Spun Rock Wools Limited in Thorold, Ontario. The plant used stone wool to manufacture thermal insulation.
A firestop or fire-stopping is a form of passive fire protection that is used to seal around openings and between joints in a fire-resistance-rated wall or floor assembly. Firestops are designed to ma
Fire test of mortar-based firestop
Pipe with metallic piping penetrations in a 2-hour fire-resistance rated concrete floor slab
Inadequate firestop with rockwool
Firestop mortar seal of a cable tray