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Weight of asbestos roof slates.
Asbestos containing roofing materials were a popular choice for the citizens of the u s.
Standard specification asbestos cement slates and sheets order 1950.
Throughout history asbestos has been used in various forms with the most common being building construction.
8 to 64 pounds depending on source and orientation to grain.
To calculate the weight per square metre simply multiply the weight per slate given below by the number of slates per square metre for the same slate listed above.
The weight of truss rafter must be added to calculate the dead load of the roof.
Asbestos nominal width ft in weight cover per 100 width sq ft as ft laidlb 1 100 colour grey rooflights dead type unglazed 10 long 9 radius asbestos wikipedia the free encyclopedia.
25 of 1946 hereby order as follows.
I daniel morrirssey minister for industry and commerce in exercise of the power conferred on me by subsection 3 of section 20 of the industrial research and standards act 1946 no.
1 8 to 32 pounds depending on thickness.
However it was only in the 19th century that full scale mining was established around the world which opened up doors for construction companies to get their hands on the fibres readily.
500 x 250mm slate 4 5mm thick 1 889 kg x 18 8 at 75mm lap 35 51kg per square metre.
Asbestos sheeting was originally introduced as a lightweight alternative to commercial slate and tile roofing.
The use of asbestos cement roof shingles was growing at a steady rate in the united states.
Thanks to its impressive durability and fire resistance the mineral was widely used in a variety of roofing slates.
1 lb m ft 2 4 88 kg m 2.
Within the building industry asbestos was most commonly used in roofing materials due continue.