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Posted: Sat Sep 23, 2006 11:25 am
by tpayre
HI
I am laying paving slabs(30 mm) in a 3 meter square area I would like a good slope to let the water to run off.I'm going to to start my dry mix at 25 mm.Can anyone tell my how thick it should be the end thickness to get a good slope thanks
Posted: Sat Sep 23, 2006 11:33 am
by tpayre
I am laying it on a concrete base
Posted: Sat Sep 23, 2006 11:36 am
by tpayre
I am laying it on a concrete base
Posted: Sat Sep 23, 2006 11:38 am
by tpayre
I am laying it on a concrete base
Posted: Sat Sep 23, 2006 12:08 pm
by lutonlagerlout
is it a concrete base you are laying on??? 
25mm / 60mm is enough fall over 3 m
regards LLL 
Posted: Sat Sep 23, 2006 12:33 pm
by tpayre
yes.I have to be carefull as i'm laying it next to the house wall and I have to make sure it is 150 mm below the d.p.c so I have to start the mix at 25 mm so if I finish at 10 mm will that give me a good slope for water to run off over 3 meters thanks LLL
Posted: Sat Sep 23, 2006 7:05 pm
by seanandruby
surely your bed should be the same all over its sub base that you should be building up or lowering???
Posted: Sat Sep 23, 2006 7:39 pm
by Stuarty
Yeah the bed should be uniform. The subbase determines the level your taking.