Stucco can be applied to any surface to create an aesthetically pleasing exterior. Painted surfaces are not conducive to this process because they repel water in a manner that inhibits the stucco from bonding to the surface.
Concrete is made of cement, water and sand. Stucco is made of these ingredients as well, plus lime. One big difference between these two home exteriors is that when dry, stucco is breathable — it has tiny pores that allow water to evaporate from behind it so that moisture doesn't build up and cause rot.
Concrete block makes a super base for Portland cement-based plaster (stucco). The two materials are made from the same basic ingredients and they are extremely compatible. Prop- erly done, it's a great combination. The concrete block should have an open or coarse texture.
If you're applying stucco to masonry walls, you'll need either 15-pound roofing felt or paper-backed lath, metal shears, nails appropriate to your walls and a nail gun. You'll also need a large bucket or tub to mix the stucco and the tools to apply it. First is a large, flat trowel to apply the scratch or base coat.
Stucco is water resistant by design, but any crack or imperfection in stucco could allow water in, which means that stucco is not waterproof. The most reliable option for waterproofing stucco is to use a waterproof barrier behind the stucco and then apply a waterproof paint or sealant over the stucco.
Stucco is a very durable finish material with a typical life span of 50-80 years or more. Although it is one of the most durable surfaces available, it also features the lowest annual maintenance cost when compared to other siding materials.
Proportions are clearly spelled out in ASTM C926, Standard Specification for Application of Portland Cement-Based Plaster. Scratch coats are mixed at 1 part cement to 2-1/4 to 4 parts sand, brown coats are mixed at 1 part cement to 3 to 5 parts sand, and finish coats are 1 part cement to 1-1/2 to 3 parts sand.
If you want a completely new look for your stucco exterior, siding is an option that covers your existing stucco so that it looks like it was never there. Vinyl siding is a versatile and durable option for covering up stucco, but re-siding your stucco should only be undertaken by a professional contractor.
When it comes to costs, you will see that the stucco cost varies from $8 to $13 per square foot. Also, you will have to think about material costs, which can be around $9 for a single 80-pound bag (this is for the first two coats).
You can apply new stucco on top of old, so long as the proper measures are taken to ensure the integrity of the new layer. Check the existing stucco for structural integrity. Cracks are a natural part of any concrete-based product, and over time all stucco installations will have cracks. These are not an issue.
Stucco is a durable and great-looking exterior finish, but it isn't invincible. Ideally, stucco should be painted every five to ten years. It's important to paint and perform other stucco maintenance on the right schedule to keep your home looking great and to prevent hairline cracks from growing larger.
Mix in enough water to create a stucco consistency similar to dough. Also make up a small amount of very wet (much water) stucco mixture to paint on the foundation immediately before applying the stucco. Spread on the stucco with a trowel and be creative with the texture.
SAKRETE Stone Veneer Mortar is polymer modified for excellent bond strength when attaching natural or artificial stone veneer to vertical substrates. Stucco is used for coating wall surfaces. It is usually comprised of masonry cement and mason sand.
Application Conditions
Stucco can only be successfully applied to your home under certain conditions. Cloudy weather is ideal, since a sunny day can make the stucco dry too quickly. However, it must not be rainy, merely cloudy. While the stucco is drying, it's important to keep it damp by misting the stucco with water.The difference in nomenclature between stucco, plaster, and mortar is based more on use than composition. At the same time, traditional lime plasters were being replaced by gypsum plaster. Traditional stucco is made of lime, sand, and water. Modern stucco is made of Portland cement, sand, and water.
The Stucco Mix Formula I Use:
- One Part Plastic Cement.
- Three Parts Masonry Sand.
- Water.
- Additives can be used too (acrylic, fiberglass, etc.), depending on what type of project I am working on.
There are a variety of acceptable mixture proportions for stucco, and the proportions of each successive coat vary. The individual materials may include portland, masonry, or plastic cement, lime or other plasticizers, sand, and water.
Some purchased a home in spite of the
stucco. Others once liked the
stucco but are ready for a new look.
Siding
- James Hardie cement board siding.
- CertainTeed Carolina Beading Vinyl siding.
- Everlast composite siding.
- And many many varieties of standard vinyl siding.
Yes, mortar is waterproof.
Shopping List
- QUIKRETE® One Coat Fiberglass Reinforced Stucco. OR.
- QUIKRETE® Finish Coat Stucco.
- QUIKRETE® Polyurethane Non-Sag Sealant.
- 10 oz.
- Grade D waterproof building paper.
- Galvanized, self-furring, expanded metal lath (min.
- Galvanized nails or staples.
- Pneumatic staple gun.
Stucco is a great alternative to your standard siding, brick or stone walls. Unfortunately, the textured surface of stucco is notorious for accumulating dust and dirt over time. Luckily, the power of a pressure washer can blast the stains away and make your walls look new again.
Stucco can and should be sealed properly to prevent moisture intrusion. If new, stucco can be sealed with a clear concrete/ masonry sealer, which will penetrate into the stucco and stop moisture entrance. These are typically silicone type sealers.
Stucco is applied wet and hardens to a very dense solid. It is used as a decorative coating for walls and ceilings, and as a sculptural and artistic material in architecture. Stucco may be used to cover less visually appealing construction materials, such as metal, concrete, cinder block, or clay brick and adobe.
What is another word for stucco?
| plaster | gypsum |
|---|
| mortar | gesso |
| plaster of Paris | render |
Compare all Specifications
| Maximum Weight Capacity (lb.) 0 | Maximum Weight Capacity (lb.) 80 | Maximum Weight Capacity (lb.) 45 |
| Package Quantity 25 | Package Quantity 25 | Package Quantity 60 |
| Fastener Length (in.) 2.875 | Fastener Length (in.) 1.5 | Fastener Length (in.) |
| Details Above | View Details | View Details |
Cement-based three coat stucco systems have been providing a long-lasting, attractive cladding for buildings for over 100 years. As its name suggests, three coat stucco is applied in three layers: 3/8-inch thick scratch coat, 3/8-inch thick brown coat, and approximate 1/8-inch thick finish coat.
