Outside Painting Problems & Solutions

Exterior Paint Issues

outside painting problems


Patterned splitting in the surface of the paint movie resembling the regular scales of an alligator is one major outside painting problem .

Possible Cause:
- Application of an incredibly tough, stiff finish, like an alkyd enamel, over a more versatile covering, like a latex primer.
- Application of a top coat before the undercoat is dry.
-Natural aging of alkyd paints as temperatures vary. The continuous growth and tightening lead to a loss of paint film elasticity.

Old paint should be entirely removed by scraping and sanding the surface; a heat gun can be used to speed work on big surfaces, however make certain to take care to prevent igniting paint or substrate. The surface ought to be primed with a high quality latex or alkyd Sherwin-Williams PRIMETECH primer, then painted with a high quality Sherwin-Williams Exterior Acrylic Latex Paint.


Bubbles arising from localized loss of adhesion and lifting of the paint movie in the underlying surface.

Possible Cause:
- Painting a warm surface in direct sunlight. Application of alkyd or oil-based paint over a wet or wet surface.
- Wetness escaping with the outside walls (less most likely with latex paint than with alkyd paint).
- Exposure of latex paint movie to dew, high humidity or rain soon after paint has dried, especially if there was inadequate surface preparation .

Attempt to get rid of the source of moisture if blisters go down to the substrate. Repair loosened caulking; consider installing an exhaust fan. Eliminate blisters. If blisters do not go all the way to the substrate, remove them by scraping, then sanding; prime any bare wood and repaint with a high-quality exterior paint such as Sherwin-Williams paints or Benjamin Moore paints


Formation of fine powder on the surface of the paint film during weather condition, which can cause color fading. Although some degree of chalking is a typical, desirable method for a paint movie to put on, excessive film erosion can lead to heavy chalking.

Possible Cause:
- Use of a low-grade, extremely pigmented paint.
- Use of an indoor paint for an outdoor application.

If visible chalk is still present, apply a top quality Sherwin-Williams acrylic latex guide (or sealer for masonry), then repaint with a top quality Sherwin-Williams ULTRA Exterior Paint. If little or no chalk continues to be and the old paint is sound, no priming is necessary.

Chalk Run Down

The washing down of chalk from an exceedingly deteriorating paint onto an additional area below (a brick foundation, for example), ruining its appearance (see Chalking).

Possible Cause:
- Use of a lower quality, highly pigmented paint.
- Use of interior paint for an outdoor application.
- Erosion of factory-finished metal siding.

Get rid of as much of the chalk residue as possible (see Chalking). Scrub any stained areas with a stiff brush, using a cleaning agent option, rinse thoroughly. In cases of serious staining, an acid wash might be needed. Regardless, if the afflicted location dries to a different color, think about painting it with a quality acrylic latex paint. Deteriorating aluminum siding must be completely cleaned (power washing suggested) prior to painting with a top quality Sherwin-Williams Acrylic Latex Paint.


The splitting of a dry paint film through a minimum of one coat, which will lead to finish failure of the paint. Early on, the trouble looks like hairline cracks; later, molting of paint chips takes place.

Possible Cause:
- Use of a lower quality paint that has insufficient attachment and flexibility.
- Over thinning the paint or spreading it too thin.
- Poor surface preSherwin-Williams tion, particularly when the paint is put on bare wood without priming.
- Painting under cool or windy conditions that make latex paint dry too quickly.

It could be possible to remedy cracking that does not decrease to the substrate by eliminating the loose or flaking paint with a scrape or wire brush, sanding to feather the edges, priming any bare areas and repainting. If the cracking decreases to the substrate, get rid of all of the paint by scraping, sanding and/or use of a heat weapon; then prime and repaint with top-notch Sherwin-Williams Acrylic Latex Paint.

Dirt Pickup

- Buildup of dirt, dust fragments and/or other debris on the paint film; may look like Mildew.
- Possible Cause:.
- Use of a poor quality paint, specifically lower grades of satin or semi gloss finishes.
- Soil splashing onto siding.
- Air pollution, car exhaust and flying dust gathering on residence body and horizontal trim.

Wash off all surface dirt prior to topping and painting. If not sure whether the trouble is dirt or mildew, conduct a simple spot-test (see Mildew). Clean off dirt with a scrub brush and detergent solution, followed by a thorough rinsing with a garden hose. Heavier dirt accumulation may need the use of a power washer. While dirt pickup cannot be eliminated entirely, top quality exterior latex paints normally offer superior dirt pickup resistance and washability. Also, greater gloss paints are more resistant to dirt pickup than flat paints, which are more permeable and can more easily entrap dirt.


Crusty, white salt deposits, leached from mortar or masonry as water travels through it.

Possible Cause:
- Failure to appropriately prepare surface by removing all previous efflorescence.
- Excess wetness escaping through the outside masonry walls from the within.

If excess wetness is the source, get rid of the source by repairing the roofing, clearing out gutters and downspouts, and sealing any cracks in the masonry with a high quality, water-based all-acrylic or siliconized acrylic caulk. If damp air is stemming inside the structure, consider setting up vents or exhaust fans, especially in laundry, kitchen area and bathroom locations. Remove the efflorescence and all other loosened product with a wire brush or power washer; then completely wash the surface. Apply a high quality Sherwin-Williams Acrylic Latex and allow it to dry completely; then use a coat of top-notch Sherwin-Williams Latex Exterior House Paint.

Fading/Poor Colour Retention

Premature and/or extreme lightening of the paint color, which often happens on surfaces with sunny southern exposure. Fading/poor color retention can also be an outcome of chalking of the finish.

Possible Cause:
- Use of an indoor grade of paint for an outdoor application.
- Use of a lower quality paint, leading to rapid degradation (chalking) of the paint movie.
- Use of a paint color that is especially susceptible to UV radiation (most notably, specific bright reds, blues and yellows). Tinting a white paint not meant for tinting, or overtinting a light or average paint base.

When fading/poor color retention is a result of chalking, it is essential to remove as much of the chalk as possible (see chalking). In repainting, make certain to make use of premium Benjamin Moore outside colors are fade resistant.


A white, salt-like element on the paint surface. Frosting can happen on any paint color, but it is less obvious on white paint or light window tints. On masonry, it can be mistaken for efflorescence. Forms mostly in secured locations (such as under eaves and on open porch ceilings) that do not receive the cleaning action of rain, dew and other moisture.

Possible Cause:
- Use of dark colored paints that have actually been developed with calcium carbonate extender.
- Application of a dark-coloured paint over a paint or primer including calcium carbonate extender.

The condition can repeat even as a bleed-through when a brand-new leading coat is used. The best remedy is to eliminate the frosting by wire-brushing masonry or sanding wood surfaces; rinse, then use a Benjamin Moore prior to including a coat of high quality Benjamin Moore Exterior Paint.


Look of a denser color or greater gloss where wet and dry layers overlap during paint application.

Possible Cause:
- Failure to keep a "damp edge" when using paint.

Preserve a wet edge when painting by applying paint toward the unpainted area and then back into the just-painted surface. It is also sensible to lessen the area being painted and strategy for interruptions at a natural break, such as a window, corner or door (specifically essential when using stain to bare wood).


Black, gray or brown locations on the surface of paint or caulk. Kinds most often on locations that often be damp, and receive little or no direct sunshine (walls with a northerly exposure and the underside of eaves are especially susceptible).

Possible Cause:
- Use of a lower quality paint, which could have an inadequate amount of mildewcide.
- Failure to prime bare wood prior to painting.
- Painting over a substrate or coating on which mildew has not been gotten rid of.

Test for mildew by applying a few drops of household bleach to the stained location; if it vanishes, it is probably mildew. Remove all mildew from the surface by scrubbing with a diluted household bleach option (one part bleach, three parts water); wear rubber gloves and eye protection. Power cleaning is also an option. Rinse thoroughly, prime any bare wood, then use a couple of coats of a Benjamin Moore high quality Exterior Paint .

Nailhead Rusting

Reddish-brown spots on the paint surface.

Possible Cause:
- Non-galvanized iron nails have begun to rust, causing bleed-through to the leading coat.
- Non-galvanized iron nails have actually not been countersunk and filled over.
- Galvanized nailheads have actually begun to rust after sanding or excessive weathering.

When painting new outside building where non-galvanized nails have been made use of, it is a good idea to first countersink the nailhead, then caulk them with a high quality, water-based all-acrylic or siliconized acrylic caulk. Each nailhead location must be spot primed, then painted with a quality acrylic latex finish. When repainting outsides where nailhead rusting has actually occurred, try removing rust stains, sand the nailheads, then follow the same surface preSherwin-Williams tion treatments for brand-new construction.

Paint Incompatibility

Loss of attachment where lots of old coats of alkyd or oil-based paint get a latex top coat.

Possible Cause:
- Use of water-based latex paint over more than three or 4 coats of old alkyd or oil-based paint might trigger the old paint to "lift off" the substrate.

Repaint making use of an additional coat of alkyd paint. Or totally remove the existing paint and prepare the surface - cleaning, sanding and spot-priming with a high quality Sherwin-Williams primer where needed, before repainting with a top quality Sherwin-Williams Latex Exterior Paint.


Loss of paint due to inadequate bond. Where there is a guide and leading coat, or multiple coats of paint, peeling may involve some or all coats.

Possible Cause:
- Seepage of moisture with un-caulked joints, worn caulk or leakages in roofing or walls.
- Excess wetness escaping with the outside walls (more likely if paint is alkyd).
- Inadequate surface preSherwin-Williams tion.
- Use of lower quality paint.
- Using an alkyd paint over a wet surface.
- Earlier blistering of paint (see Blistering).

Try to determine and eliminate reason for moisture (See Efflorescence/Mottling). Prepare surface by removing all loosened paint with scrape or wire brush, sand rough surfaces, and prime bare wood with an appropriateSherwin-Williams primer. Repaint with a Sherwin-Williams top-notch Acrylic Latex Exterior Paint for finest adhesion and water resistance.

Either means, if the afflicted area dries to a various color, think about painting it with a quality acrylic latex paint. Higher gloss paints are more resistant to dirt pickup than flat paints, which are more permeable and can more easily entrap dirt.

A white, salt-like element on the paint surface. Frosting can take place on any paint color, however it is less visible on white paint or light window tints. When painting new exterior building where non-galvanized nails have actually been used, it is recommended to first countersink the nailhead, then caulk them with a leading quality, water-based all-acrylic or siliconized acrylic caulk.

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