Popular in the ’80s, they seem to be making a comeback.
They appear to vary significantly across the construction industry. We have only ever seem them tested in concrete and masonry walls.
Of concern in many of the tests under AS1530.4-2014 is the need to fill the cavity between the block and block framing with fire rated expansion material. How can this be?
We know expanding ‘fire rated’ foam generally does not achieve its intended purpose.
Are the fire rated glass blocks once installed being tagged similar to fire windows?
The BCA definition of a window includes glass block or brick or other device which transmits natural light directly from outside a building to the room concerned when in the closed position.
We recently came across an industrial building with an opening within 3m of the boundary of glass blocks in a concrete tilt up wall. There was no tag on the window or framing and the opening was not recorded in the fire safety statement as a fire window. That is a problem.
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