Waterproofing Membrane Under Concrete Slab

The traditional plastic barrier used for under slab protection is a moisture barrier and is not a waterproof membrane.

Waterproofing membrane under concrete slab.

Waterproofing membranes installed under concrete slabs must provide permanent vapour gas chemical water protection. Uses precon is used as a blindside membrane in vertical applications where access to the positive side is limited. Underseal underslab membrane is a tough 85 mil pre concrete pour waterproofing membrane vapor barrier designed to virtually eliminate water and vapor transmission through concrete slabs on grade. In this rogue episode matt will show you a method to waterproof this very tricky transition between a wall and flat concrete slab.

There are industry observers that believe fully adhered membranes applied to mud slabs or slabs on ground fail to fully bond to the top concrete pour and create openings. The effectiveness overall efficiency and hiqh quality of precon w. Once concrete is poured against precon and the concrete cures a mechanical bond forms that secures the concrete to the membrane. Many conventional non adhering moisture barrier membranes are vulnerable to water ingress tracking between the unbonded membrane and sub structure.

All waterproofing videos. Membranes are located either directly beneath the concrete or under a graded compactable granular blotter what s at stake is the amount of curling that can occur when mix water leaves the bottom of a slab slower than it does on the top surface. For 2019 consider precon for all your building envelope. Meadows is your moisture protection solution.

In addition to protecting floor finishes and indoor air quality underseal underslab membrane also acts as a barrier to methane and radon gas. Meadows pre applied underslab waterproofing membrane is demonstrated by the fact that architects and contractors continue to trust it for their biggest projects. Under slabs or behind basement walls on confined sites require a waterproofing membrane system that bonds robustly to the concrete block wall.