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.

Efflorescence is primarily an appearance problem that occurs with masonry and often plaster. Rarely do these deposits of crystalline salts do any harm to masonry surfaces. In most cases, the efflorescence appears as a white dust or deposit on the surface of brick walls, chimneys or patio bricks. In certain cases, the color of these salts can also be green and brown. While it's difficult to control, efflorescence can be prevented by reducing moisture sources.

The following publications have excellent information concerning what is efflorescence, its prevention and guidance on efflorescence removers. Some of them may be available at your local library.