Ridging that provides ventilation. Can be moulded units installed in sections or larger curved corrugated sheets fixed onto frame, both for apex of pitched roofs.
Also curved corrugated sheets on ridge of saw tooth roofs.
Installed with moulded AC flashing components.
Years of production/use
Prior to 1990
Brands/products
Fibrolite
Tasbestos
Durabestos
Fibrock
Master Seven (M7)
Residential uses
N/A
Industrial uses
Warehouses, factories, workshops etc
Be aware
Accumulated asbestos containing dust and debris.
Bituminous felt washers were often used with the screws for fixing.
Bituminous felt washers used for fixings often contain asbestos. Roofing screws and bolts were also dipped in bituminous compound before fixing. Refer fixings information pages.