Stucco is a combination of sand, water and powdered limestone or cement, mixed to a mortar-like consistency, applied over metal wire or lath and allowed to cure to a hard, durable state. This finish can last over 20 years without peeling and/or blistering! When the need arises, stucco can be refreshed with the application of paint. But why, when and how should you paint your stucco? 

Why: Over time, stucco develops water and rust stains. When painted with a quality product, these stains will not only disappear but they won’t reappear for years! Paint also fills and covers hairline cracks, protects against damage by UV rays and makes stucco weather resistant. This allows your colour to remain consistent even in rainy periods and helps your home maintain an attractive appearance for many years. 

When: Timing regarding stucco renewal will depend upon the climate of your area and the original quality of the stucco. Inspect your stucco every couple of years to determine whether it needs repainting.

How: Painting stucco is a complex and involved job and is best done by a contractor with stucco painting experience. The basic procedure is as follows:

• Inspect the home’s stucco for cracks, missing patches, mould and stains. 
• Clean: Use a stiff-bristled push broom to remove dust and dirt from the surface. If this does not remove all debris, use a power washer. Scrub particularly dirty areas (beneath windows, close to the ground) with a coarse nylon brush and a solution of 1/3 cup powdered laundry detergent, 4 cups bleach and 1 gallon of hot water. Allow to dry completely before caulking and/or repairing. Treat any mould/mildew with a mould removal solution. 
• Fix hairline cracks (1/8″ or smaller) with masonry caulking. For larger cracks, use a putty knife and stucco patching compound. Allow curing 7 to 10 days before painting. 
• Cover windows, doors, trim, vents and anything else you do not want painted. Apply painter’s tape around door and window trim.
• Check the weather to ensure a few sunny days are expected. 
• Prime using an exterior masonry primer to seal the stucco and avoid uneven paint and inconsistent colour. Use a thick nap roller. Apply two thin coats. Allow to dry.
• Paint the stucco using a thick nap roller or sprayer and applying elastomeric paint, a product with superior adherence and flexibility allowing it to cover cracks and patches with ease. Apply two light coats. Allow to dry.
• Remove the painter’s tape.

A fresh coat of paint can revitalize cracked, stained stucco and offer many benefits. The right paint applied correctly can last 15 or more years! So check out your stucco. Is it time to refresh your exterior finish? Contact a professional painter who specializes in stucco painting. They will know what type of paint to use, make suggestions regarding colour selection and deliver high-quality results that will last for years. 

Thinking of painting your stucco? Call the Calgary residential painting experts, Cal Res Coatings at (403) 835-4817. We’re a residential painting contractor with experience in stucco painting. We strive for quality, have an eye for detail and colour, and will not rest until your job is done to your satisfaction. Request a free quote today.