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Exterior Tips
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Painting the exterior of a house can be a demanding job. But you can save yourself a lot of work by preparing properly for the project. First, decide how much of the exterior will be painted. Only the shutters or trim may need to be painted rather than the entire house. Next, determine the colours and the types of paint you want to use. Many companies now provide recommended colour combinations with their sample books to show you what colours look good together. If you're having a hard time making up your mind, purchase a quart of each of the colours you like, and use the paint to create larger samples for easier comparison. Keep in mind the colour you choose should fit in with the rest of the houses in your neighborhood. Most likely a latex paint would be better because latex is easier to clean and lasts at least as long as oil-based paints. Whether you choose latex or oil-based paint, always purchase the best paint you can afford. Otherwise you're likely to spend lots of time applying additional coats. Before beginning the painting project, the surface of your house should be clean, dull and dry. Wash off any chalk, dirt and mildew. Protect landscape plants by covering them with plastic.
After cleaning the house, scrape off any peeling or cracked paint, then sand and prime the area. When you've finished priming, begin painting the trim. Semigloss paint works well on trim.
The brush used is almost as important as the paint itself. With latex paints, use a brush made of a nylon/polyester blend. Use a natural-bristle brush with oil-based paints. For maximum control, hold the brush so that it balances on your hand at the point where the handle meets the brush. Place your fingertips on the metal ferrule, and use your wrist to guide the brush. The paint will flow more smoothly from the brush. Pay attention to the temperature. For best results, paint on days with low humidity, when the temperature is between 75 and 85 degrees Fahrenheit. Follow the shade so that your fresh paint isn't exposed to direct sunlight; otherwise, heat blisters may develop.
Be careful to keep a "wet edge" by overlapping painting areas over the areas you finished most recently. Don't paint into a drying paint film: the film could buckle. The best way to paint shutters is to remove them and spray them away from the house. If you must paint them on the house, use an angled sash brush. When choosing a colur for shutters, keep in mind that dark colours absorb more heat and can cause vinyl shutters to warp. Apply an oil-based primer coat to metal doors before you begin painting. This step is especially important if the door is exposed to weather. Allow the primer to dry for 24 to 48 hours, next apply two coats of exterior paint.
When saving leftover paint, place a piece of plastic wrap on top of the open can. Spray cooking oil over the plastic and tightly secure the lid. Turn the bucket upside down, and you'll have a brand-new seal. Air won't get in, and the paint will last longer.
Start on top to prevent streaks. Whether indoors or outdoors, always begin painting at the top and work your way down.
Lower-quality paint can't stand up to everyday weathering. Protection against sunlight and temperature will keep the paint's original colour and moisture. Lack of moisture can cause mildew and will eventually crack the paint.
There's a reason it's called primer. For better paint adhesion, priming is the way to go. Use an oil primer and top it off with latex or acrylic for a better seal.
You have to work around Mother Nature. Rain season is not a great time to paint. Paint needs time to cure, and rain is its biggest enemy. Intense humidity can get underneath the paint and cause it to bubble.
Sanding is probably one of the most important prep steps because it creates adhesion. Before you sand, wash the surface. Power washing is also a very important part of the painting process. If the surface is clean of dirt and mildew, the paint will adhere properly.
If paint is peeling and you've failed to maintain it over the years, check and see whether there's rot in the wood. If there is, use a wood petrifier; scrape away the bad wood and pour in the petrifier, it will make the wood extremely hard. Then fill the rotted gaps with proxy adhesive or resin.
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