The mechanism the filler slab is a mechanism to replace the concrete in the tension zone.
Filler slab roof disadvantages.
Pitched roof need much more area of roofing material than flat roof.
The filler material thus is not a structural part of the slab.
A flat roof cannot be used for long spans without using columns and beams.
At this point you will need to choose whether you would prefer a pitched roof a roof with at least two slopes that rise at an angle greater than 10 degrees each to make a peak or a flat roof a roof with an angle of less than 10 degrees.
Rcc slab laying is one of major step in any type of construction so it is mandatory to know all the points related to laying rcc slab.
Where the area above the neutral axis is the compression zone and the area below the neutral axis is tensile zone.
Filler slab is based on the concrete portions and instead of placing filler material there and is one cost effective roofing system.
Disadvantages of flat roofs.
By reducing the quantity and weight of material the roof become less expensive yet retains the strength of the conventional.
If you ve opted to build your own house at some point you will likely have design your roof.
Rcc is composite material where concrete is strong in compression and weak in tension.
Filler slab as projection creating an interesting articulation.
Hence we are elimi.
This image shows a beam.