Interior Painting – Frequently asked questions

Can I paint directly over wallpaper?
No. Wallpaper can be painted over with the proper preparations. Be sure to remove any loose wallpaper, scuff/sand the surface, then apply interior oil-based primer.

Can I apply latex paint over oil based paint?
Yes. Be sure to prepare the surface properly before painting. Oil-based paints should be sanded to a flat finish before painting. After rinsing, apply Dutch Boy® oil-based primer and apply desired latex paint.

Can I apply paint directly over a semi-gloss paint?
No. Semi-gloss paint must be dulled to a flat finish by sanding*, allowing proper adhesion. Removing or disturbing old paint from interior or exterior surfaces by sanding, scraping, abrading or other means may produce dust, debris or fumes that contain lead. Exposure to lead dust, debris or fumes may cause brain damage or other adverse health effects, especially in children and pregnant women. Structures built before 1978 should be tested by a licensed inspector prior to removing or disturbing old paint.

Can I use exterior paint on the inside of my house?
No. Exterior paints are formulated to be more flexible to withstand temperature and climate change.

How can I best prepare my walls before I paint?
Walls that have never been painted should have a recommended primer applied before painting. For previously painted walls, thoroughly wash them with a mild soap and water solution, then rinse with clean water. If your existing surface was painted previously with semi-gloss paint, the surface should be lightly sanded to a duller finish. If the walls have not been painted in five years or longer or are stained then primer should be used.

How much paint do I need?
To achieve one-coat coverage, paint should be applied at a maximum of 400 square feet per gallon. Rough or textured surfaces may require more paint. On these areas allow for 125-300 square feet per gallon.

How do I prepare the surface?
As a general rule, all surfaces should be clean before painting. Remove any loose, peeling paint, and/or any other substrate that is on the surface*. Scrub all surfaces to remove all dirt, grease, oil, etc. Rinse surface well and allow to dry. Apply appropriate patching material to cracks, nail holes, or other surface imperfections, sand smooth, and remove sanding dust.

*If your existing surface is glossy, dull surface by sanding or use an abrasive cleaner. Remove any residue.

How do I take care of my freshly painted surface?
Freshly painted surfaces may be washed after 30 days. Avoid touching, wiping, or wetting any freshly painted surface for 30 days. After that time dirt and stains may be removed with a mild, non-abrasive cleaner and water. Do not place objects on windowsills and shelves until paint is thoroughly dry.

How long should I wait before applying a second coat of paint?
A second coat of latex paint may be applied 6 hours after the first coat. With oil-based paint, you should wait 24 hours between coats.

Should I paint the trim before or after I roll the walls?
The wall area around the doors and windows and along the ceiling should be cut in with a brush, this will prevent the wall from having an obvious and unsightly picture frame effect. Then, the main part of the wall can be painted with a roller, rolling into these areas.

Why do I need to use a primer?
Primers are specifically formulated to seal porous surfaces, block stains, as well as to insure the proper adhesion of the topcoat and produce the best possible coverage.

What is the proper order to follow when painting a room?
When painting a room, the ceiling should be painted first, followed by the walls, then the trim (including doors and windows) and finally the baseboards.

When should I apply?
Room and surface temperature should be between 50 and 85 degrees. Paint dries best between 65F and 85F. Allow at least 4 hours of drying time before recoating.

What is the proper rolling technique?
Fully load the roller with paint by dipping the entire cover deep into the tray of paint. Carry as much paint to the surface as possible. Make a letter “V” in a small 2 foot by 2 foot area with a generous roller load of paint. Fill in the “V”, spreading the paint evenly from left to right. Lightly smooth out with downward motions. Repeat “V” with a freshly loaded roller for every 2 x 2 foot area.

Exterior Painting – Frequently asked questions

Can I paint over aluminum/vinyl siding?
Yes. Always make sure the surface is cleaned to remove any chalk or dirt. Never apply paint that is darker than the original painted surface on vinyl siding.

Do I need to wash my house before I paint?
Yes. Surfaces must be clean before painting. Thoroughly wash with a house cleaner and water solution, making sure to remove any and all mildew. Rinse and allow to dry.

How much paint do I need?
Be sure to utilize our Paint Gallon Calculator in the Project Planner section to help you determine how many cans to buy for your next project.

To achieve one-coat coverage, paint should be applied at a maximum of 400 square feet per gallon. Rough or textured surfaces may require more paint. On these areas allow for 25-30 square feet per gallon. Some bright colors may require multiple costs to achieve sufficient hide.

How do I apply the paint?
When using more than one gallon of the same product, mix the gallons together to insure color and sheen uniformity. Two coats of this paint will provide maximum protection.

How do I paint shingles & shakes?
Shingles offer natural breaking points, paint in a vertical direction.

How do I care for freshly painted surfaces?
We suggest not washing your newly painted surface for at least 30 days. After that time, dirt and stains may be removed using a mild, non-abrasive cleanser and water.

I have never painted the exterior of my home before….?
When painting the exterior of your home always start with a clean surface; paint one side of the house at a time, starting with the highest point; apply a full even coat to one side of the house at a time and always paint the trim last.

What conditions are best for painting my house?
Generally you should only paint when the surface is between 50F and 85F. High temperatures cause the water in the paint to evaporate too quickly, while low temperatures prevent latex from covering properly. Always avoid painting in direct sunlight, strong winds, or when rain is expected within 8 hours.

What tools do I need?
Depending on your project and the type of structure you are painting, paints may be applied with a nylon/polyester brush, a paint pad or spray unit.

What is the proper way to use spray equipment?
It is always safe to operate spray equipment with safety cautions. Use respiratory and eye protection. All spray units are different and it is important to follow the manufacturer’s instructions carefully.

Color Frequently asked questions

How do colors effect room size?
Generally, warm colors like reds, oranges, and yellows close in a space. Blues, greens, and violets tend to make a room look larger. Dark colors have a diminishing effect. Whites are always a good choice for making a room look larger.

My room has a chair rail and I am using two colors….?
This depends on the look you want to achieve. If you want an open, airy look, always paint the portion of the wall below the chair rail darker allowing the lighter color to dominate.

Should trim work be painted the same color as the walls…?
Use the same color to hide trim work, use a lighter or darker color to bring out the trim work and add highlights.

Will the paint I choose look lighter or darker on the wall?
Larger surfaces make the paint appear darker. As a general rule, always choose colors that are a shade or two lighter than what you want. Do keep in mind that colors can also appear lighter or darker depending on surrounding colors and lighting.

What is the best way to decide which color is best for my room?
Take color chips home to determine the color of your room. A nice technique is to hold the color chips in the daylight and at night so you will see how lighting will effect your color choices.

What color should I paint my ceiling?
White or off-white colors will create the illusion of having a higher ceiling and more open space. Whereas medium to dark colors will create the illusion of lowering the ceiling. Customarily, white or off-white tend to be used.

Will the paint actually match the color chip?
As a general rule, paint on a color chip will appear slightly lighter than when applied in a room. Always take into account the sheen of the paint, the lighting in the room, and other colors that are in the room.