Mixing mortar for your brick repointing job will probably not mimic what you see on residential construction sites. The mortar mix you see in those bags is probably not going to match your existing mortar in color and strength. This is especially true if your house was built prior to the 1950's. Houses built prior to the 1950's used site-mixed mortars rich in lime. When mixing your own mortar, first mix a small batch of 7 to 8 ounces and keep track of your proportions.
Cracks in masonry work stand out like a sore thumb. Repair efforts to solve these blemishes are often shortsighted and done in a hurry. A repair person or homeowner will run to the hardware store and grab a bag of premixed mortar and try to fix the cracks in an afternoon. This is a recipe for aesthetic disaster. The mortar joints will be completed that afternoon. However, the repair results will very likely look like a scar running diagonally across the face of your house. Don't disfigure your home - take the time to do the repair properly.
Brick veneer literature gives you a quick education about how non-waterproof brick walls really are. Just do a little extra reading. I have listed a few articles and sources for brick veneer literature. There are too many to list them all. I have selected some key articles below.
Brick veneer houses are not waterproof. Does that information surprise you? Well, I can tell you that I was in a state of shock when I found this out about six years ago. Prior to that, I felt that brick veneer construction was very weather resistant. I used to tell my customers who built with brick that they need not worry about water infiltration, rot, etc. For a leakfree brick home use good flashing materials, weep holes and be sure to read up on the process.
Clear coatings manufacturers usually don't sell their products in hardware stores or home centers, so try calling the manufacturers in the following list for your purchase. Check out the Brick Institute of America's data on the properties of various clear coatings to find the one for you.
Brick, block, stucco, and mortar all contain very tiny passageways that accept water. This can be a positive quality. However, depending upon exposure to the elements, temperature conditions, strength of the individual brick or block units, etc., it can can work against the long term durability of the masonry. The two main categories of colorless coating to apply to brick or masonry surfaces are film forming sealants and penetrants.
These manufacturers make some excellent brick/masonry sealants and penetrants to repel water. Mold can be kept in check by sealing your brick and masonry surfaces, such as in your basement.
Whether working with colored mortars, pigments or bricks, be sure to check out installation tips and literature before you start. For colored mortar and mortar pigments, consult techniques and web sites for the following manufacturers. When it comes to bricks, any of the 100 brick companies listed on the Brick Industry Association web site also serve as great resources for advice or installation tips, as well as the Portland Cement Association.
Brick is a great building material. It is dense, strong and durable. Because of the wide range of brick colors, textures and colored mortars, an almost endless variety of exterior looks can be achieved by using brick. The positive qualities of brick are so ingrained in our culture that they are a key factor in the outcome of the fairy tale "The Three Little Pigs."
Paving bricks are a wonderful surfacing material. Their color and texture add a unique touch to sidewalks, driveways or patios. Many paving bricks are available in different patterns as well. They add depth and character that you can't easily achieve with standard asphalt or concrete. Here is a list of paving brick companies that make the grade.
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