The monsoon is here! Time to relax from the blistering heat of summer and revel in the rains. But as a homeowner who is looking to paint his house, the rains can be a pain! The falling rains, excess moisture, seepage through walls, and limited sunlight can create a problem with the application of paint, curing of the color, and the color being able to cling to the area where it has been applied. Here’s what happens if you paint your house during the monsoon and whether you should paint your house at all.
Whether you are painting walls inside the house, outside the house, or in the wet season, these risks mean the paint may not get enough time to dry properly, making a repaint likely. This article tells you more about the impact of the monsoon on paints, home problems, and how to prevent them and get the perfect finished product.
Should I Paint During Monsoon?
It completely depends on the weather, the paint, and what surfaces you have to paint. During monsoons, you will surely get rain; the humidity levels are very high; hence, working on any exterior painting job will be a lot more difficult. If your walls are moist, or you already know it will rain—wait.
If the rooms are dry, well-ventilated, and free of moisture, there is no worry about applying paint inside the house. Open the windows as wide as possible (well, if the windows are not closed)!
1. High Humidity Slows Down Paint Drying
The issue you will experience in the monsoon is high humidity in the atmosphere, resulting in the drying rate of water-based paints decreasing; humidity is the water content in the atmosphere. This could create an issue with the time it takes to apply a number of coats.
This can also be problematic on the surface, as the paint isn’t dry, so dust, bugs, and knocks to the coating while still wet can cause damage. There are also instances where a second coat applied too early can cause issues, as you trap moisture in the coating.
Effects of High Humidity on Paint
Ever wondered how humidity affects paint? Here’s the point: water-based paints, such as traditional latexes and acrylics, frequently have problems caused by humidity, since they generally need water to evaporate from the film for a good cure. Oil-based paint, however, cures in other ways and can also have difficulty with temperatures and conditions.
To what extent this will take place will vary depending on many factors, including the type of paint, substrate, and environmental conditions. Please refer to the manufacturer’s technical data.
2. Rain Can Damage Freshly Applied Paint
Painting a property outside is not a simple task and may have many problems, such as when rain gets onto the freshly painted surface. If part of the paint is still wet, it can then be washed off, resulting in streaks and poor coverage, or if the rain is heavy and in contact with the fresh coating, then the ability of that coating to resist is compromised.
The external walls of a building are especially vulnerable. The paintwork, being on the outside of the building, becomes your protection against the exterior elements. They are in direct contact with nature and therefore, even if only for a brief while, can be exposed to rain.
What Happens If It Rains on Fresh Paint?
The effectiveness of your coating will be determined by the state the coating is in at the time of rainfall. Some of the things that could be caused are:
- Water running down the surface, causing streaks.
- Areas without paint or uneven color.
- Moisture underneath the coating causing bubbling and flaking.
- Adhesion problems caused by the coating being wetted out before the film has had time to dry.
- Rain can cause unevenness in the paint.
Has your new paint failed because of rain? Don’t worry, I am here to help you!
First, simply allow your paint to fully dry. When it is dry, just have a look around the space. You will need to remove any loose, flaking coating, resand the area, and then repaint the space.
3. Moist Walls Will Lead to Peeling and Paint Failure
During a monsoon, water will be entering through the outer wall. If there are chinks, broken plaster, leaking roofs, or faulty joints, water will enter it. It will also deposit moisture on the surface of the wall even if you do not notice the presence of water on the surface. Painting on a wall after its surface has become moist will cause a problem.
This can be especially problematic with older properties and properties that are affected by water damage. The stained area can be painted over, and the stain will be masked, but the problem of the dampness isn’t addressed. If the problem with the water is not addressed, then the new paintwork might not last for as long as required.
Signs Your Walls Are Too Damp to Paint
Before beginning any painting project, check the wall for these signs:
- Discoloration or indications of dampness.
- Paint that peels or flakes.
- Smell of mold or dampness.
Do not attempt to paint over them. Track down and get rid of the source of moisture, fix the damage, and let it dry out. In some cases, you’ll have to bring in a professional before you can get on with painting. For more on moisture and mold problems, see the U.S. EPA’s guide to mold.
4. Exterior Painting Becomes More Difficult During Rainy Weather
Fresh paint on your outer walls is exposed to rain, mist, breeze, and temperature changes. Even when it isn’t drizzling outside, you may still not get the proper drying conditions from the environment.
Temperature can also be a problem. If your walls aren’t getting any sun or are getting wet overnight, it can cause delays in painting. The morning dew can mean there is still some moisture on the exterior surfaces, so it is best to check the wall.
Understanding Exterior Paint and Rain
Exterior paints are made to withstand the weather once they are dry and cured. They will, of course, not be waterproof immediately.
Some specific coatings have quicker weather resistance. The manufacturer’s guidelines will state the specific timeframes that they suggest. Ask how long the paint will be rain safe/rain resistant, the best humidity, and the minimum temperature for applying the paint.
5. How Long Should Paint Dry Before Rain?
Wondering what happens if you get caught in a rainstorm just after fresh paint has been put on? Well, let’s find out! The simple answer is that every paint has its own unique drying characteristics, and there’s no specific magical time period when the paint is protected from the rain. Some paints are dry almost immediately after application, while others need plenty of time for the paint to dry.
It may seem like the paint on the surface is dry enough to face the rain. It may seem like it’s dry-to-the-touch, but technically it may not actually be dry—you see a layer that appears dry on top, but underneath there’s still plenty of moisture. Rain hitting it a few minutes after it appears dry will make it sticky again, at best.
Check the Manufacturer’s Weather Recommendations
Before you begin painting outdoors, here’s the one thing: you’ve got to review the product label or technical data sheet to see the recommended rain-safe window. Look not just at the weather forecast at the time you begin; look also at what the weather looks like after the painting.
You could think that laying on thick coats is a band-aid for a lack of sunny spells, but believe me, it’s much preferable to apply thin layers of a suitable coat and let each one dry in between. Doing it too quickly before it rains can cause more issues.
So, if the forecast appears to be unstable or rain is in the forecast, it’s generally the cleverest idea to hold off.
6. Can You Paint a House in the Rain?
And while you may think painting your exterior walls during a rainstorm sounds like a wise idea, it’s actually a no-no. You risk getting the surface wet, diluting fresh coats, and ruining the bonding strength of the paint itself. Not to mention, those high winds can get water underneath your temporary covering.
What If Only One Side of the House Is Sheltered?
Painting on a sheltered wall is possible only if it’s totally dry and conditions are favorable for the product. It actually requires a complete check for overnight condensation or moisture from adjacent walls/roof drainage systems.
Don’t rely on just a roof or a piece of temporary plastic to protect your project. Yes, it’ll help prevent direct rain, but it won’t provide the proper drying conditions.
So, if you’re unsure, then the best course of action is to call in an experienced painter for a review before you go.
7. Practical Ways to Protect Your Home During Monsoon Painting
Rain can be a painter’s nightmare, but it doesn’t have to be! You can stick to your plans by doing a little bit of planning. First off: Number 1—check the weather forecast (1 or 2 times at least, before you’ve committed to working outside). When selecting the date, don’t just choose a day when the rain’s taken a break; choose a day with a window of time long enough to set your schedule.
The thing is, you’ll want to check on your house as well. Look for leaks in your gutters or drain pipes, as well as cracks in the surface or broken gaskets and couplings. Water can also creep onto your new paintwork even after the rain is over.
So, what more can you do to make this easier? First, repair leaky roofs and plumbing lines. Then, wash off dirt, algae, and loose paint from the outside walls. Allow the washed walls to dry thoroughly, then select the best house paint for your needs, and don’t paint on a foggy, dewy, or really humid day.
Lastly, cover your work in case of a water mishap. Follow these tips so that you can avoid the common mistakes of the monsoon and end up with a beautiful finish that will last you a long time!
Why Professional Painting Matters During the Monsoon
Ever considered painting when it rains? It isn’t just a matter of the weather. The thing is, in monsoons you have to think about surface dampness, weather fluctuation, drying time, and the right products. That’s to ensure your paint job stays intact and beautiful. Been there, done that—peeling and blotchiness. You know what that’s caused by? Poor prep and application, and that can end up costing you.
Your professional painter will know what to look for: Is it moist on the surface? You’ve got a high moisture problem. Is it gonna rain? Is the surface just right? Whatever the weather, your painter is watching the forecast and following the manufacturer’s directions.
At SD Custom Painting, you can rely on us to help you achieve that new look for your house. Whether you want to freshen your interior or exterior, find out how hiring an experienced professional could save you thousands.
Conclusion
When it comes to paint, you can’t control the weather, but you can be prepared for it. Combinations of high humidity, dewy walls, and unforecasted showers can throw a new coat of paint’s drying time, adherence to the wall, and overall appearance out of whack. But here’s the good news: While exterior painting calls for some planning, interior jobs can be tackled so long as the room is dry and ventilated.
So where should I begin? Begin by checking the surfaces, selecting the right products, and monitoring the weather. Take your time to ensure you’re not rushing to get the job done just before the rain sets in! SD Custom Painting can guide you through your home improvement project and help you overcome those weather hurdles.
FAQs
Can You Paint a House in the Rain with Walls Covered?
Here’s the thing. Even with the walls covered, painting conditions might not be great. There’s moisture, wind, and humidity, all of which can have an impact on your painting project. Better wait until everything is as the manufacturer recommends.
How Long Should Paint Dry Before Rain?
Thinking about how long paint should dry before it rains? There is no single answer, because it depends on the type of paint, the weather, and the painted surface. Check the rain-safe time on the product label or technical data sheet.
Can High Humidity Affect Freshly Painted Walls?
You bet it does! Humidity can definitely cause some problems with the paint. It can also take longer to dry and even increase the recoat time. If you paint outside the recommended conditions, it can also affect the appearance and performance of many different types of coatings. Wouldn’t that be a bummer?
