As salam alaikum
Dear All,
I have a staircase with waist slab 20cm thick,it is casted upto first landing level from ground(First flight).
Now,The client wants to increase the floor height,so contractor is proposing to increase the landing slab and waist slab thickness to 40cm from first landing upto floor slab inorder to increase the floor height.
Is it allowed to increase the thickness to 40cm with same reinforcement as for 20cm thickness,And also the cover to reinforcement will be 22cm?? Is it OK??
Do I need to check for crack width as I am providing more cover???
Kindly advise...