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- 22 Jan 2021
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Hi All,
Attempted what I thought would be an easy job, and the first job I have putting down new timber in a suspended timber floor - putting a DPC roll across top of the sleeper walls before sitting the wall plate on top.
I laid out a thin bed of mortar (1-2mm, using one of those pre-mixed bags) on top of the wall, what I thought was wet enough, put DPC on top and no adhesion at all, just slid right off even with trying to press down.
Any tips for making it stick? should I forget about the premixed bags and do my own mix 4:1 sand/cement mix? Should it be really wet, my mix was sandy almost instantly despite my thinking it was pretty wet, is 1/2 mm too shallow? should I have used a plasticiser?
Would appreciate any tips!
Attempted what I thought would be an easy job, and the first job I have putting down new timber in a suspended timber floor - putting a DPC roll across top of the sleeper walls before sitting the wall plate on top.
I laid out a thin bed of mortar (1-2mm, using one of those pre-mixed bags) on top of the wall, what I thought was wet enough, put DPC on top and no adhesion at all, just slid right off even with trying to press down.
Any tips for making it stick? should I forget about the premixed bags and do my own mix 4:1 sand/cement mix? Should it be really wet, my mix was sandy almost instantly despite my thinking it was pretty wet, is 1/2 mm too shallow? should I have used a plasticiser?
Would appreciate any tips!