Us Coloradans know that the weather in the Mile High City can turn on a dime. From beaming sunshine to hail the size of golfballs, Colorado homeowners expect the unexpected. But, when it comes to your exterior paint job, it’s important to know the impact of various weather conditions on your home’s paint.
Below, we’ll discuss how Denver weather can affect your exterior painting project, both now and in the future.
Denver Weather and Your Exterior Painting Project
The weather here in Denver can impact your home’s exterior painting project in more ways than one. Here are a few key weather conditions that could impede your paint job:
In Colorado, we live in a dry climate with low humidity levels virtually all year round. However, Coloradans still experience humidity at some points during the year. In the spring and summer months, when rain is in the forecast, humidity levels can reach a peak.
Unfortunately, rain and humidity can quickly derail an exterior painting project. If rainwater reaches the paint, it will cause it to break down far faster than it usually would. This compromises the longevity of your home’s exterior paint.
High humidity levels also prolong the drying and curing processes for your home’s exterior paint job. When your paint is cured, it means that it’s fully hardened and ready for use. In humidity, exterior paint may not cure as usual, making it more difficult to plan and complete the paint job.
Temperature is a key determinant in the best conditions for exterior painting. Here in Denver, we experience both sweltering heat and freezing cold, both of which can thwart exterior painting attempts.
Painting at Low Temperatures
When the temperature drops below 50°F, painting starts to get tricky. In the cold, paint takes far longer to dry and cure than it usually would. Generally, lower temperatures could force you to wait a few extra hours before applying a second coat.
Prolonged paint drying times are inconvenient. However, paint also starts to dry inconsistently in colder weather, which is more of an issue for the quality of your exterior paint job. Painting at lower temperatures can have these negative effects on your home’s exterior paint:
- Color incongruity
- Lack of sheen
- Film cracking
The impact that cold weather has on exterior paint can also vary depending on the type of paint that you use. For example, if you’re using oil-based paint, painting at low temperatures can cause the paint to thicken. This makes it difficult to apply even coats.
If you’re using water-based paint, you may notice water spotting in colder weather. With water-based paint, temperatures 32°F will freeze the paint’s water content. When this occurs, it’s simply not possible for the paint to dry. That’s why exterior painting at freezing temperatures is to be outright avoided.
Long-Term Effects of Denver Weather on Exterior Paint
Paint Damage From Hailstorms
Hail season in Colorado, which typically lasts from April to September, can do some serious damage to your home. While your roof will likely take the brunt of the damage from a hailstorm. But, your home’s exterior paint could be affected, too.
Hailstones can cause your exterior paint to chip, crack, split, or discolor. After a hailstorm, you may also notice dents and dings in your home’s exterior paint. Have your local painting contractor inspect the paint damage and determine if hail could be the culprit.
Denver Sunshine and Your Exterior Paint
Sunny Denver days can, over time, cause damage to dark and brightly-colored exterior paint. The most common long-term effects of intense sunshine on exterior paint include:
Blistering and Peeling
The sun can heat up your home’s exterior surfaces. This is especially true for dark-colored paint, given that darker colors absorb more heat than lighter colors. When paint gets extremely hot, bubbles can form in the paint. Commonly called blisters, these bubbles can rupture and completely remove the exterior paint on sections of your home.
When blistered sections of paint are exposed to the elements – namely wind, rain, and additional sunshine – peeling often occurs. When your paint is peeling, it’s important to have a professional repaint the area to avoid further damage to the exterior of your home.
To manage this risk, Denver homeowners can opt for exterior paint with UV protection. Or, a UV-resistant clear topcoat can work well to protect any type of exterior paint from harsh sunlight.