How To Waterproof Window In Shower
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Tiling
How-To
Waterproofing a Window in a Tiled Shower
Utilise a waterproofing membrane, a pitched sill, and good silicone caulk when installing a window in a tiled shower enclosure.
We want to add a window in the tiled shower enclosure of our principal bath, just nosotros're worried about h2o impairment. How can we add a window in a way that will protect the window and the exterior wall from wet bug?
— Paul Kreitler, Columbus, OH
Tom Meehan, possessor of Greatcoat Cod Tile Works: A window in a tiled tub or shower enclosure is common, but y'all are smart to be concerned almost the potential for wet harm. There are a few different means to arroyo this project. I like to keep the tile into the window jamb as if information technology's role of the wall afterwards I've added a pitched sill.
In these types of situations, I encourage homeowners to utilize vinyl-clad windows housed in a wooden jamb. The vinyl provides maintenance-free protection from wet for the window itself. The all-woods jamb provides a flat and sound base. Make sure that you locate the window outside the range of the spray from the showerhead.
Every bit with all tiled shower installations, run cementboard throughout the shower expanse and on the same plane as the window jamb. Caulk the articulation betwixt the jamb and the cementboard with a expert-quality silicone caulk. Although the caulk provides an initial seal, it should not exist relied on as the only defence force against water infiltration through this joint. To seal the joint completely and to cover the exposed wood of the window jamb, wrap a waterproof membrane such as Schluter'due south Kerdi (world wide web.schluter.com) over the joint and into the window jamb. Bail the membrane to the wood with a latex-modified thinset.
I like to install a pitched sill in these windows to permit h2o to bleed back into the shower. In lieu of wood, I use a piece of Corian, which I install with latex-modifed thinset. The simplest way to pitch the sill is to build up the thinset under the dorsum part of the Corian; mixing it a little potent volition make information technology easier to work hither. One time the sill is in place, I install tile over the entire expanse in the same fashion as I do the remainder of the shower.
When the tile is complete and the grout is sealed, use a expert silicone caulk where any ii planes come up together, such as where the window meets the newly tiled jamb.
Call up that the window is on an exterior wall, so temperature changes will cause expansion and contraction in many of these materials. Cheque the area every year for cracked joints; caulk or grout as needed.
More on shower details:
Tiling Bathroom Walls: Windows and Niches – In this video, Tom Meehan reviews the steps for waterproofing a window sill with Kerdi-Lath.
Curbless Shower: Build Upwards, Not Downwards – Contractor Jake Bruton describes his technique for building a curbless shower on elevation of an existing subfloor, simplifying the traditional approach to this chore.
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Source: https://www.finehomebuilding.com/project-guides/tiling/waterproofing-a-window-in-a-tiled-shower
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