Showers, wet rooms and stone floors need a waterproofing layer that bonds to the substrate below and the tile above. We install Laticrete Hydro Ban liquid membrane and 9235 fabric-reinforced systems, paired with matched underlayments, so every layer works as one. Free written estimate on every project.
Tile and stone failures in bathrooms and wet areas almost always start at the interface between layers. A shower wall or wet floor needs a waterproofing membrane that sticks to the substrate and accepts the tile finish above without any gap or delamination.
Laticrete Hydro Ban and 9235 are engineered to bond chemically to matched underlayments below and to Laticrete thinsets above. When you stack products from different manufacturers, you lose that chemical bond and create a failure plane. Our Sika waterproofing work follows the same principle.
We evaluate the substrate condition, the wet-area exposure and the tile or stone finish to decide between Hydro Ban liquid membrane and 9235 fabric-reinforced system.
Prepare and level with underlayment
The substrate is cleaned and prepped, then a matched Laticrete underlayment is applied to get the surface flat and ready for the waterproofing membrane.
Apply the waterproofing membrane
Hydro Ban or 9235 is applied at the manufacturer thickness with all seams, corners and transitions detailed and sealed. Flood testing is done where the spec requires it.
Set tile into Laticrete thinset
Tile or stone is set into a Laticrete thinset mortar that bonds into the membrane, creating one continuous waterproofed assembly from substrate to finish.
Hydro Ban vs. 9235
Choosing Between Laticrete Membrane Options
Hydro Ban is a liquid-applied waterproofing membrane that works for most shower walls, wet rooms and below-grade tile applications. It goes on smooth, cures fast and accepts tile immediately after. For complex details, corners and movement joints, the 9235 fabric-reinforced system adds a woven reinforcement layer that prevents cracking at stress points.
Both pair with Laticrete underlayments that flatten the substrate and bond to the membrane. The same integrated thinking guides our BASF floor systems and commercial epoxy installs. We pick the right membrane for the job and spec the full Laticrete chain so the warranty stays intact.
Hydro Ban, 9235, underlayments and tile assembly details in Boston.
Hydro Ban is a liquid-applied waterproofing membrane for showers, wet rooms and below-grade tile assemblies. It seals the substrate, then tile or finish sets into a Laticrete thinset that bonds into the membrane.
The 9235 fabric-reinforced system adds reinforcement at corners, movement joints and detailed transitions where liquid alone is not enough. We pick based on the specific assembly.
Usually yes. A matched Laticrete underlayment brings the substrate flat and bonds chemically to the membrane above, removing the layer-boundary failure mode you get from mixing brands.
Yes. Hydro Ban and 9235 are designed for shower assemblies and are widely specified for wet rooms, with proper detailing at drains, corners and curbs as part of the install.
We install Laticrete systems to the published manufacturer spec, with primer, membrane and tile-setting products from the same family, so the warranty is intact and the assembly performs.
A shower that needs to stay dry, a wet-room floor or a stone tile assembly, tell us the scope and we will spec the right Laticrete membrane and underlayment, then send a written estimate.
