Welcome!




Expand Your Education with These Courses from
Time Management: Skills for Sales Success: Part Two.
Business Creation - Prospecting: Skills for Sales Success: Part Three.
The Psychology of Consultative Selling: Skills for Sales Success: Part Four.
Customer Relationship Building: Skills for Sales Success: Part Seven.
Bundle 2: CIPS Elective Courses (Non-US Version).

Your Place: Re-Coating a Foundation Interior

Have a comment on this article? Share on Facebook!

By Alan J. Heavens

stone foundation(MCT)—Q: Our 1920s Colonial has a stone foundation with some sort of cement coating on the interior. Much of the coating has flaked off, exposing the mortar joints, which are disintegrating.

We recently had a sump pump and French drain installed in the basement, which will eliminate much of the dampness from minor water leaks.

What would be the best process to re-coat the interior walls of the foundation?

A: It’s nostalgia time, and to answer the question, I return to the basement of another of my houses, which had a stone foundation and something that perpetually flaked off the walls.

When the builders of houses in the late 19th and early 20th centuries wanted to do something cost-effective with the clay soil excavated from digging a home’s foundation, they had the workers mix it with lime and used it to plaster the inside basement walls.

These construction materials must have begun turning to reddish powder in a matter of years, and gathering on the edges of the inside walls — at least, that’s where I was sweeping it up in the house I once owned that was built in 1904.

In the mid-1990s, I helped a church’s youth group that spent several months of the year preparing to work on the Pine Ridge Reservation in South Dakota.

To gain experience, we rehabbed houses with soon-to-be homeowners for Habitat for Humanity, and every house we worked on had these crumbling basement walls. That’s when the Habitat people introduced some of the teenagers to pargeting.

Pargeting comes from a French word meaning “to coat a surface with plaster.” The technique is easily learned.

What we were told was that the soil-lime interior coating had been designed to be replaceable, since its purpose was to shift when the exterior stone expanded and contracted during normal freeze-and-thaw cycles.

No one bothered to pass on the information to subsequent generations of owners, and these interior walls started to flake off.

This isn’t a flaw; this is the way the coating was designed. To fix, our instructors told us:

Check the pointing on the stone on the exterior wall. If it is loose or missing, it needs to be replaced because moisture will cause havoc with the interior walls.

The interior walls should first be cleaned with a wire brush to get all the loose material off so that the new coating will adhere to it.

Then, mix one part Portland cement, three-quarters part limestone, and an amount of sand no less than 2.5 times and no more than four times greater than the amount of cement. (For 10 pounds of cement, that works out to 7.5 pounds of limestone and 25 to 40 pounds of sand.) Add water until the mixture is the consistency of pancake batter.

Wet the surface of the wall, and spread the mixture on — not too thick — with a trowel. If it doesn’t bond to the surface, there could be too much water.

Never mix more than you can use in 30 minutes.

©2013 The Philadelphia Inquirer

Distributed by MCT Information Services

Want instant access to great articles like this for your blog or newsletter? Check out our 30-day FREE trial of REsource Licensed Real Estate Content Solutions. Need easy stay-in-touch e-Marketing solutions too? Try Pop-a-Note for 99 cents!
Join RISMedia on Twitter and Facebook to connect with us and share your thoughts on this and other topics.




Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

Copyright© 2014 RISMedia, The Leader in Real Estate Information Systems and Real Estate News. All Rights Reserved. This material may not be republished without permission from RISMedia.

Content on this website is copyrighted and may not be redistributed without express written permission from RISMedia. Access to RISMedia archives and thousands of articles like this, as well as consumer real estate videos, are available through RISMedia's REsource Licensed Content Solutions. Offering the industry’s most comprehensive and affordable content packages. Click here to learn more! http://resource.rismedia.com

Our Latest News >>