Treatments allow breathable water-repellent coating for brick

Q. Dear Mr. Frechette: I’ve been a do-it-yourselfer for years, and it’s so exciting to finally see that companies are recognizing the potential with classes and knowledgeable personnel. I’m really happy to see that The Spokesmen-Review is on the right track with your new column. I promise to be a faithful reader.

Now for my question: We recently purchased a home with a lot of brick work, and it’s orange in color. I don’t want to paint it — only soften and gray the color. Are there any products available that will work? Please help me tone down this vivid color.

Many thanks. — Rena C., Nine Mile Falls

A. Rena, thanks for sending in the picture; I have to agree with you that the color is a little loud and outdated. The different color tones in the brickwork result from a combination of natural materials (clay composition), any added compounds, surface treatments and firing temperature. I also noticed that color was added to the mortar. With all that going on, the walls look very busy, so softening the overall color could increase the home’s curb appeal.

Tinting or staining brickwork is a common practice that has been used successfully for well over 30 years. Tinting or staining bricks, however, is usually done by a professional.

Before beginning, it’s important to prepare the brick and mortar. Because bricks, in general, are porous and can retain water, it’s important that water from sprinklers not be directed at the walls. Also, do not allow snow during winter months to rest against the walls.

The bricks need to be thoroughly dry before beginning the project. Also, if the brick has been painted or has any other coating, the surface should be cleaned with a mild sandblasting or chemical treatment. I recommend having a professional handle this phase of the project. Examine carefully and repair mortar joints as needed.

Three products are available locally through Seco Construction Equipment, 5610 E. Broadway Ave., 535-7756. See Kat Mitchell and bring this article with you. She can help recommend both the right product and possibly a professional to handle your project.

“ Nox-Carb is a penetrating, pigmented, water-repellent sealer/stain for interior and exterior concrete and masonry surfaces ( www.nox-crete.com).

“ Tamms Aquastain T-96 is a water-based, decorative, penetrating stain ( www.tamms.com).

“ Tamms Tammolastic is an elastomeric decorative and protective coating ( www.tamms.com).

These treatments each carry a 10-year limited warranty, and you can expect the finish to last at least 10 years. They all repel water and yet allow the substrate to breathe; if the coating didn’t breathe, then during the winter months, water would migrate toward the (warm) interior walls. During warmer weather, water will be pulled to the (warm) exterior side causing the vapors to stain the surface and the coating (paint) to peel. It’s very important to use a product that allows the substrate to breathe.

Penetrating stain products retain the natural texture of the masonry surface without leaving a “painted” look. Many standard and custom colors are available, and Seco offers a color chart with a lot of options. While penetrating stains will yield the color you seek, the uniformity of the overall color will be based on the existing color tones of the brickwork’s surface, i.e., different color tones (light/dark) will be evident in the overall finished product. However, a protective coating will yield more uniformity than a penetrating stain when it comes to different colored bricks.

A primer is required before the finish coat can be applied. Tamms carries an H/P Primer formulated for concrete or masonry surfaces. It is milky white but dries clear with a slight gloss. It, too, creates a breathable barrier within the substrate surface.

Again, I recommend you contact Seco Equipment for product information and that you contract with a professional for the project. I can’t stress this enough, because if the job doesn’t turn out as you expected, it could hurt the resale value of the home — and it could cost a fortune to correct.