Professional Painting Contractor Serving Mission Viejo and Surrounding Areas Since 1997 | Custom Coatings and Finishes | Team CCF
Interior Painting Design Considerations
Interior Design Considerations
The intended use of an area dictates the degree of washability that will be required to maintain a "clean" wall appearance. A corridor, for example, is considered a high use area and should be finished with an easier washing paint than a flat finish, such as a low sheen or higher sheen paint. The higher the sheen, the better washability the paint will have. Interior flat wall paints are formulated to produce a flat or matte finish. Excessive rubbing or washing of localized areas will result in a burnished or polished appearance after the wall dries. Therefore, it is best to use flat wall paints in areas not subject to abrasion, excessive handling, or high use.
When recommending or choosing a type of finish (flat, low sheen, eggshell, semi-gloss, or gloss), your recommendation should be based on how the finish will look with wear - after exposure to normal use (unless painting for resale or a rental "fresh look" appearance).
SOLVING PROBLEMS THROUGH COLOR
Many interior design problems can be solved or reduced by the selection of effective colors (see below). A homeowners association may stipulate the Light Reflectance Value (LRV). The LRV is a number used to measure the degree of brightness in a color. Contact a Dunn-Edwards representative for help with color selection if the LRV applies to repainting specifications. The following chart gives some basic color guidelines when choosing interior colors.
|Too large or too light||Use deep warm tones to make the walls and ceilings appear closer.|
|Too square||Select one wall as an accent wall and use a color that contrasts with the other three.|
|Too narrow||Use an accent color on one or two short walls.|
|Low ceiling||Use white, off-whites, or light pastels to make a low ceiling appear higher.|
|High ceiling||Use a deep tone color to make the ceiling appear lower.|
What is an elastomeric coating?
The ability of a substance to recover to its original shape after distortion is called elasticity. An elastomeric coating is defined as a high-build latex coating that has extremely elastic properties.
Like most latex paints, elastomeric coatings have great durability, color retention, alkali-resistance, and easy soap and water clean-up. They will "breathe", allowing moisture vapor to escape from behind the coating.
Unlike other latex paints, elastomeric waterproof coatings have unique features that set them apart from conventional latex exterior paints.
What makes elastomerics unique?
Elastomerics are truly high-build coatings. They are designed to be applied in very thick films. Their high-build properties allow wet applications of 10 to 20 mils thick without sagging or drooping. (1 mil equals 1/1000 of an inch.)
The benefit of this is that a single coat application will result in a dried film of 5 to ten mils. (Compare this with a typical house paint that is typically applied at 3.1 mils wet and dries to 1.1 mils.) A single application of an elastomeric coating is therefore the equivalent of approximately five to nine coats of a conventional house paint. With this extra thick coating, you can expect outstanding durability and protection.
The 100% acrylic latex resin used in elastomeric coatings is a very soft, elastic polymer, called an elastomer. (There are many different types of elastomers; the most common is the styrene-butadiene rubber in automobile tires.)
The beauty of elastomeric coatings is that even with heavy applications, there is still a tremendous degree of film flexibility. In fact, they have been measured to stretch over 300% of their length, and, when released, return quickly back to their original length.
An elastomeric coatings' flexibility can easily handle the expansion/contraction movement of exterior building surfaces over a very wide temperature range. Most people associate elastomerics only with warmer climates, but they are equally effective in low-temperature regions.
It is very common to see hairline cracks on masonry and stucco surfaces. Each crack is a potential entry point for moisture. The strong adhesion and flexibility of high-build elastomeric products will expand and contract as a building moves, bridging over craks up to 1/16 of an inch wide.
Wind-driven rain is common, particularly in the southern parts of the country. As cracks develop on masonry and concrete surfaces, moisture will enter and collect behind a stucco or masonry layer. This weakens the structure and, of course, causes the coating to fail. Elastomerics are designed to protect against moisture by covering the substrate with a protective sheath. Coating first with masonry sealer builds optimal water resistance.
Where should elastomerics be used?
There is a common misconception that elastomerics are only for use in high humidity and warmer climates. However, because they are extremely durable and can withstand an extremely wide temperature range, they can be used very successfully in almost any climate.
Elastomerics can be applied to a wide range of exterior surfaces, such as masonry, stucco, concrete, wood, metal, and synthetic materials, e.g., Dryvit". They are ideally suited to large commercial jobs, such as commercial buildings, banks, hospitals, institutions, apartment complexes, and condos, but are also ideal for single-family homes.
Elastomeric coatings provide great value with their durability, color retention, and flexibility.