The next step up is a semigloss finish, which has the level of reflectivity that makes an impression but can be challenging to apply. Semigloss paint provides great coverage and is easy to clean but is less forgiving when it comes to brushstrokes and overspray. The highest-end finish is full gloss, which looks very luxurious when the job is finished, but requires a surprising amount of prep work and painting experience to apply correctly. It is also on the expensive side, so it is often used sparingly on door frames, window treatments and accent walls.
Prep work should include removing all loose paint, either with a pressure washer or by scraping; removing any trace of mildew using bleach and water or a commercial solution, and sealing or covering dark stains; caulking all seams, corners and around windows or trim; applying epoxy filler to repair serious woodwork problems; covering dark stains; sanding all rough surfaces, and priming the bare wood with a bonding primer.

An example of the wall measurement would be: 40 linear feet of bedroom space, x 8 wall height, =  320, x 2 = 640. Minus 1 door (60) and 2 windows (80) = 500 sq feet being painted. Then divide the 500 by 400 (sq feet per gallon), and you get 1.25 gallons (4.73 L) needed for that room. For this, you'd need 1 gallon (3.8 L) and 1 US-quart (950 ml). If the amount it comes out to is over 1.3, we recommend just getting 2 gallons (7.6 L) so that you have leftovers if needed, since 2 US quarts (2,000 ml) costs essentially the same as a gallon in most stores.
Most house painting professionals will agree that two coats of paint are needed on a home. Using one coat of paint may look sufficient, but will not hold up over time. Two coats of paint, on the other hand, provide protection, washability, and help retain the true color of the paint. If you are still toying with the idea of hiring a professional painter, ask if two coats of paint are included in the pricing estimate.
You’ll spend between $500 and $3,000 or $1 to $3.50 per square foot to paint concrete. However, expect to pay $2 to $7 per square foot since concrete almost always needs a coat of primer first. Double that price if the concrete requires stripping. Concrete is porous. Sealing it not only helps blend foundations and walls with your home’s aesthetic, but also seals it against water. Repairing or resurfacing concrete costs $300 to $500 for every 100 square feet.
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