Efflorescence On Fiber Cement Siding

Grab your soft cloth and saturate it with soapy water.

Efflorescence on fiber cement siding.

After the efflorescence is removed the siding will need to dry before a new coat of waterproof primer and paint can be applied. It s available in a variety of sizes and shapes to match many of the old siding shingles installed over the last 60 years. Invented in austria in 1901 and originally marketed under the name eternit which spoke to its long lasting nature fiber cement siding first gained popularity in australia as a way to protect homes from that country s heavy brushfires. Any material containing portland cement results in efflorescence.

What paint method is best for fiber cement siding. Efflorescence is a fact of life with most types of concrete stucco and masonry. The most usual reaction occurs when calcium hydroxide lime formed in the hydration reaction of portland cement approximately 140 pounds per cubic yard of concrete is transported by water to the surface through capillaries in the concrete. Clean the stained siding while rinsing your cloth frequently.

Efflorescence has been a problem for fiber cement siding manufacturers for many years. Each of these materials is very porous and will absorb any moisture they come in contact with. Unlike fiber cement engineered wood siding will not effloresce. Do not allow soap or cleaners to dry on the siding.

Lp smartside siding products are more resistant than fiber cement products to impact damage from common projectiles such as golf balls baseballs and rocks. For pricing and availability. Instead continually rinse the area until all of the soap has washed off of the. Once the siding is completely sudsed up use a garden hose to rinse the area.

There it combines with carbon dioxide. It s also good to know efflorescence does not harm fiber cement siding structurally nor is the siding hurt by proper surface cleaning. If efflorescence occurs it can be remedied with the techniques previously described. James hardie 12 in x 144 in hz10 hardieplank cedarmill fiber cement lap siding.

Lp smartside trim and lap siding comes in 16 lengths vs. Fiber cement s shorter 12 lengths often resulting in fewer seams or joints on your structure. However brushes and rollers may make it difficult to cover. Properly installed and maintained fiber cement is an excellent choice offering realistic wood looks.

The good news is that primer and paint can be applied to fiber cement siding by brush roller or sprayer.