Just say NO! Glass Block

Let’s play a word association game. When you read “glass block,” what is the first thing that comes to mind? If you say Maison de Verre or anything related to WG Clark, you get a gold star. If you say bathroom window, interior partition walls, or the 1980s, read on–this post’s for you. I’ll spare you the full history lesson, but let’s suffice it to say that glass block was NOT designed to be used as a “window” of any sort, nor was it created for interior partitions (particularly half-height ones or curved shower walls), although it DOES evoke memories of the 80s… Needless to say, as a designer, few things make me cringe as much as when a client suggests using glass block in their brand new space: It is one of the easiest ways to instantly date your home. When I question why they want to use glass block, they always respond, “We don’t think that a normal window (or wall) will work, but we don’t know what other options we have.” Below are the two most common reasons we see people turning to glass block and some suggested alternatives.

Glass block + neon–it doesn’t get any more dated than that!
Photo credit: Jo Naylor

The problem: Privacy

The solution: Translucent glazing. When window treatments are not ideal (you don’t want curtains hanging over your tub), consider treating the glass itself to admit light into the space while blocking your neighbor’s view. This can be achieved by using etched glass–either etching the glass on the window itself or by overlaying a panel of etched glass on top of the existing window–or by applying a film directly on top of the glass. The possibilities for personal expression abound with either option and each have their place in different applications.

This lovely window film is easy to apply as well as easy to change, unlike glass block.

The problem: Water infiltration

The solution: Proper construction. If you have a window in a wet area, a wooden sash and window frame are potential liabilities. However, with a little careful planning and foresight, you can seal that window up. First of all, caulk is your friend: Make sure to seal up every possible joint where water could potentially infiltrate beyond the barrier. Secondly, use exterior-rated paint on any wooden surface and make sure that wood is never exposed to the water. Finally, consider replacing your wood sill with stone or concrete or modifying its slope so that water never sits on it. Once you’ve made sure your shower window is water tight, just make sure it’s peeping-tom-proof and you’re all set!