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Painting Over Chipped Paint Exterior: What Do I Need To Know?

painting over chipped paint exterior

If there’s one thing you will learn today, it is never, ever paint over chipped paint. It really cannot be put in plainer terms. If you do paint over chipped, flaking or bubbling paint, all you will have is more chipped paint to deal with.

You can, however, prepare the exterior walls of your home correctly, deal with the chipped paint properly, and then repaint and get a great finish. Even better, you can prevent the problem from occurring in the first place by choosing the right types of paint.

Improving the look of your home can have a huge effect on it value. In fact you can add as much as 10% by simply giving your home a new paint job. This is not just because it looks better, but because the new owners are aware that your home has been protected from damage caused by the elements.

However, if your paint job looks shoddy or is flaking off, you could even devalue your home, as the following article reveals…

Why Does Paint Chip?

You may expect that after a few years it is normal for the paint on your home to chip. In fact, that doesn’t have to be the case.

Chipping paint (especially if it happens after just a few weeks), is almost always caused by the incorrect application of the paint itself. It isn’t just a symptom of time. There are a few reasons why paint will chip or flake, including the following:

● The paint has failed to dry or cure correctly. This means that the paint has been applied in bright sunlight, or on a damp surface, causing the drying process to be uneven between the surface against the wall, and the surface facing the sun. This causes the paint to pull upwards, shrink, and ultimately come away from the wall. This is more likely to happen with latex or acrylic paints.
● The paint has not adhered to the wall correctly. Essentially, the paint has started to come away from the wall as it dries. This usually happens because the wall was damp, or had patches of wet. It could also be because there was damp in the walls that made its way out. It could also be because the wall was dirty, not prepared properly, had old paint on it, or the wood was not sanded correctly.
● The paint is poor quality or incorrect. It really could be as simple as not choosing the right paint for your needs. For example, you may have chosen interior paint instead of exterior, or you have used old paint. Your exterior paint job will really only be as good as your materials. You may also have failed to use a primer when the paint you are using calls for one. Don’t forget to mix your paint thoroughly, as separated paint will not adhere correctly to the walls.

painting over chipped paint exterior

Chipped paint can cause all manner of problems ranging from exposure to the elements, to reduced its overall appeal in the eyes of prospective buyers

Why Worry About Chipped Paint?

If you notice that your paint is becoming chipped, you will want to remedy the situation as soon as you can. Chipped paint can cause all kinds of problems, not least the fact that your home will look unkempt and uncared for.

The main reason for concern is the way that the wall beneath the paint is now becoming exposed to the elements. This can lead to water reaching the wall surface and seeping inside the wall.

This water can cause all kinds of problems both inside and outside your home. Outside, it can seep into cracks where the freeze and thaw cycle will result in cracks becoming larger and more difficult to deal with.

Inside your home, the water can get onto interior walls and cause mildew and mould. It can also soak into cavity wall insulation making it ineffective.

painting over chipped paint exterior

To prevent chipped paint from happening again, always use the right paint in the right place, ensuring it's primed before application

What To Do About Chipped Paint

The only thing that can be done about chipped paint is to remove it and start again. This process involves using a paint scraper to remove the layers of paint, and then sanding the edges to ensure that the surface is as smooth as possible.

Now you need to ensure the same issue won’t happen again by making sure the wall beneath is totally dry, and free of defects. Take you time, and only repaint in the right weather conditions.

You may also find that you need to repaint a large area to prevent a patchy finish. It can even be as bad as having to repaint entire walls.

Avoiding Chipped Paint: 4 Top Tips

Of course what everyone wants is to prevent a fresh paint job from chipping in the first place – saving you time and money. There are several ways you can achieve this:

● Only use the right paint, in the right place, and use a primer as well.
● Only paint when the weather is cool and overcast – but never if it looks like it might rain.
● Take your time with the preparation of your walls, and, in particular, when it comes to the removal of the old paint. Don’t forget to fix any damage that could be holding water issues.
● Always paint onto dry walls and masonry.

painting over chipped paint exterior

Chalking refers to the formation of a chalky powder on the paint film, causing a loss of protection to the substrate, whilst simultaneously defacing the surface

What About Chalking? Can I Prevent This Problem As Well?

Absolutely! In fact, with the help of exterior masonry paint, you can rest assured that your home's exterior surface will remain spotless.

So what causes this problem in the first place?

In short, chalking occurs due to weathering, with the binder degraded by sunshine and moisture. As a result, you're likely to run into one of several problems:

Problem 1: Defacing Of The Surface

The chalky deposits can easily run onto the underlying brickwork, leading to the appearance of white patches.

Problem 2: The Colour Of Your Exterior Will Be Compromised

Excessive chalking can quickly lighten the colour of your paint, leading to less than desirable results.

Problem 3: A Loss Of Protection To The Substrate

In some cases, the chalking can severely compromise the substrate, by eroding the protection provided by the paint film.

painting over chipped paint exterior

By choosing the right paints, and applying them with care, you can have a finish that improves your home, and increases its value in the process!

Painting Over Chipped Paint Exterior: How Hydrophobic Paint Can Help

A hydrophobic paint is essentially a waterproof paint that is designed to give you a long lasting and great looking paint job on your home. It can be used as an alternative to the usual outdoor paints, as it offers so much more.

Hydrophobic paints are entirely waterproof, and yet they are fully breathable as well. This allows any moisture that is in the walls to escape, without affecting the overall finish of the paint.

The waterproof nature of these coatings allows water to simply run off, taking dirt with it, thereby maintaining the good looks of your walls for a longer period of time.

These paints can be used on wood or masonry. The masonry versions come in a clear finish, that gives the home that standard traditional look by not covering up the bricks.

For many people this is perfect, as bricks can be notoriously difficult to protect from water. The grouting can often be cracked and loose, allowing water to penetrate. Of course you should fix any grouting issues, but a waterproof coating will certainly prevent ongoing or new issues arising.

Most of all, hydrophobic paints give your paint finish a longevity that you simply don’t get with any other exterior paint. Your home will stay looking good and protected for around 15 years. This is certainly better than the usual 2-3 years that most exterior paints offer.

By choosing the right paints, and applying them with care, you can have a finish that improves your home, gives you peace of mind, and even improves its value. It is hard to put a price on that, but luckily these paints won’t cost you a fortune either.

Prevent chipped paint problems for good, with the help of hydrophobic paint. Take the first step to premium masonry protection today, by calling 0800 1700 636, or, alternatively, by simply clicking the button below!