Weight Of Asbestos Roof Slates

Standard specification asbestos cement slates and sheets order 1950.

Weight of asbestos roof slates.

In the early 1920s american roofing material manufacturers johns mansville carey eternit and century were all offering at least one asbestos cement roofing shingle to their customers. The use of asbestos cement roof shingles was growing at a steady rate in the united states. 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. 8 to 64 pounds depending on source and orientation to grain.

How to tell the difference between super six and. Based on slate s successful performance as a steep slope roofing product we consider a roofing product should have a minimum handleability index of 8. 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.

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. 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. 25 of 1946 hereby order as follows.

Thanks to its impressive durability and fire resistance the mineral was widely used in a variety of roofing slates. Asbestos cement cavity decking asbestos for comprehensive details see publication b 105 max purlin space ft in 10 0 value price 10 ft unit per 2 ton lot colour grey cement slates size 24x lap lap lap approx weight per square lb 430 430 430 batten spacing 10 10 price per 1000 slates per 2 ton lot colour grey 63 17 6 57 7 0 41 18 6 nominal width. 1 8 to 32 pounds depending on thickness. Throughout history asbestos has been used in various forms with the most common being building construction.

1 lb m ft 2 4 88 kg m 2.