Yes, you can absolutely plaster the exterior of a house. In construction, this is typically called "rendering" or "stucco." It acts as a protective, weather-resistant skin that shields the underlying brick, block, or timber from the elements while providing a clean, customizable finish.
In English, "plaster" usually means a material used for the interiors of buildings, while "render" commonly refers to external applications. The term stucco refers to plasterwork that is worked in some way to produce relief decoration, rather than flat surfaces.
Similarly ACI 24, Guide to Cement Plastering, requires that, “Plaster installed when ambient temperatures are below 40 degrees Fahrenheit (4.4 degrees Celsius) must be maintained in a sheltered and heated environment with continued curing to assure cement hydration.”
Plaster is generally more affordable than stucco, costing between $2 and $10 per square foot, while stucco typically ranges from $6 to $12+ per square foot. However, they serve entirely different purposes—plaster is for indoor walls, whereas stucco is an exterior siding designed to withstand harsh weather.
Plaster's main disadvantages include high installation costs, labor-intensive application, and brittleness, which leads to cracks over time. It requires skilled professionals, is difficult to repair, and can interfere with Wi-Fi signals.
Cold Temperatures
If the temperature hits freezing, the water in wet plaster can even freeze, causing cracks and structural weaknesses.
Spring offers optimal conditions for stucco work. Avoid stuccoing in summer due to high temperatures. Fall is another ideal time for stucco application. Extreme weather conditions affect stucco quality.
Rendering is the coating of external walls, whilst plastering is the coating of interior walls. The rendering process is used to coat exterior surfaces of buildings and contains a higher percentage with its composition.
Yes, you can absolutely plaster a wall yourself, even as a complete beginner. However, plastering is a skill that heavily relies on muscle memory and timing. While anyone can learn the basics, your first attempt may require some heavy sanding to get a smooth finish.
Good plastering doesn't just look nice – it adds real value to your property. Homes with great exteriors often sell for more. Even small plastering projects can boost your home's worth a lot. A well-done plaster job shows that you care for your house, which buyers love to see.
Not quite. While both are cement-based wall coatings made from sand, water, and a binder, stucco is technically a specialized type of plaster. The main difference is that plaster is softer and used mostly for interior walls, whereas stucco is harder, durable, and designed for outdoor environments.
The three primary types of plaster used in construction and design are gypsum, cement, and lime. Each serves a specific purpose, ranging from smooth interior walls to highly durable exterior facades.
Yes, you can paint directly onto plaster, but never straight out of the tin without priming. Plaster is highly porous and will suck the moisture out of undiluted paint. This causes the paint to dry too quickly, preventing it from adhering and resulting in peeling or flaking later.
Don't rush – a quick finish is a poor finish.
One of the worst things you can do for your plaster is rush the job. Plastering requires proper preparation of the surface and time to dry. Rushing through the steps will end in disaster for your finish.
The lifespan of plaster depends entirely on its application. Interior wall plaster can last 50 to 100 years, pool plaster lasts 5 to 15 years, and an unapplied bucket of pre-mixed plaster mud is viable for 1 to 5 years.
A plasterer's hourly rate generally ranges from $20 to $45 per hour, depending on your location, the complexity of the job, and whether you hire an independent contractor or a large contracting company.
Fresh plaster typically takes around 3–5 days to dry in normal conditions. However, plaster drying time can vary depending on factors such as temperature, ventilation, humidity and the thickness of the plaster. In cooler, poorly ventilated or humid rooms, plaster can take one to two weeks to dry completely.
Fine hairline cracks in plaster are very common and are usually caused by the plaster drying or minor seasonal expansion and contraction of the building. As long as they are not growing or accompanied by the other warning signs, they are typically just a cosmetic issue.
For most healthy adults, 68°F (20°C) is not considered too cold and is actually the standard indoor temperature recommended by the U.S. Department of Energy. It serves as a great sweet spot for balancing physical comfort with energy savings.
People don't use traditional plaster for everyday construction anymore because it is significantly more expensive, highly time-consuming to install, and requires specialized, dying craftsmanship compared to modern drywall.
Signs of infection: If you see signs of infection like increased redness, swelling, or pus, take off the plaster and consult a healthcare professional. Learn more about identifying infected wounds here.
Plastering usually costs between $2 and $10 per square foot for standard walls and ceilings, averaging about $6 per square foot for labor and materials. For a standard 12x12 room, expect to pay between $1,200 and $6,000, depending on the extent of repairs and the type of finish.