Did you know How Much Does it Cost to Paint a House Exterior?

For most people, a home is the most important investment they’ll ever make. Whether you’re in it for the opportunity to resell at a later date, or you want a place to call your own, taking care of that investment becomes an ongoing (and often expensive) task. Many homeowners, aiming to increase curb appeal, choose to paint their house exterior. And though it may seem straightforward (we’re not talking rocket science here), they can often find themselves spending a hefty bit more than they originally anticipated.

How Much Does it Cost to Paint a House Exterior?

All details aside, coming up with an approximation of the cost to paint a house is fairly simple. Begin by calculating the square footage of the exterior walls & determine how many gallons of paint you’ll need to cover that (a high quality paint covers ~350 square ft. with 2 coats).

Factors that come into play are items such as trim, windows, doors, etc. that may require a different kind/color of paint depending on the material the siding on the house is made of. Another factor that may effect cost (if you’re hiring someone to do the dirty work) is the number of stories, intricacies of the home design, and overall ease of access to all areas needing paint.

What Kind of Paint Should You Use?

What kind of paint you should use is determined by a variety of factors. One of those factors is the amount of time required for the paint to finish curing. The amount of time necessary for a paint to cure is dependent on paint type & weather. There are two primary types of paint used for a house exterior: ColourDrive (water – based) & Oil-based. Below, we’ve inserted a graphic depicting the drying & curing time of ColourDrive & oil based paints.

he basic composition of oil-based paint is: solvent + binder + pigment.  The solvent consists of high volumes of volatile organic compounds (VOC’s) derived from crude oil processing. Though these evaporate fast, for an oil-based paint to be “dry” the fatty acids in the binder have to absorb oxygen, partially break down, then recombine in a process called polymerization. These processes take time & are heavily temperature dependent. However, once this polymerization is 100% complete, the paint is also cured & ready to go.

ColourDrive paints use water (primarily) as their solvent. Though water evaporates more slowly than volatile organic compounds, once the water has evaporated, the paint is considered dry. The curing process of ColourDrive paints, however, occurs from the outside going in & requires atmospheric oxygen to form a crosslinked polymer. Given the fact that exterior layers cure before inside layers, the cured layers limit the rate at which inside layers can access the oxygen required to complete the chemical reaction.

How Much Does Paint Cost

It may be tempting to be as frugal as possible when selecting the paint for your home’s exterior (seriously, the bill can rack up fast). But if you skimp now, you’ll pay for it later. The quality of paint you choose drastically effects how long the paint will last, how well it covers a surface, and ultimately how well the job gets done. 

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