JUST BEFORE each of the two big rainstorms this fall, Andrew Roth and I have covered the front steps (with Ruben’s help). We did so in order to protect them from the rain.
Water will degrade sandstone that is unprotected. Rainwater also percolates through the steps into the concrete substrate—damaging it—and onto the ceiling of the basement spaces below.
Unfortunately, even after years of trying, we have not managed to find an affordable and practical way to seal the flagstone and grout, and also reduce the water intrusion. (Out of curiosity, I did get a quote to fully waterproof the steps that would involve replacing all of the sandstone, at a cost of $164,000!)
We are still working on a solution—but in the meantime, a physical cover seemed like the least we could do, to minimize the damage. I don’t know whether we will keep this up, though.
Below the jump, this post points you to 6 other posts on this topic.…
On the nature of the challenge, and on various approaches to addressing it, see:
https://mishkonbuildingandgrounds.blogspot.com/2022/02/water-intrusion-under-front-steps-not.html
https://mishkonbuildingandgrounds.blogspot.com/2022/03/flagstone-restoration-project-untold.html
https://mishkonbuildingandgrounds.blogspot.com/2024/05/water-intrusion-under-front-steps.html
https://mishkonbuildingandgrounds.blogspot.com/2024/09/step-by-step-approach-to-waterproofing.html
https://mishkonbuildingandgrounds.blogspot.com/2024/10/step-by-step-approach-to-waterproofing.html
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