Portland Oregon Exterior Painting Preparation: What to Check Before You Paint
A homeowner calls a contractor because the house needs to be painted.
Simple enough, right?
Not always.
During a recent residential project, IM Construction was called to provide exterior painting for a home that was in rough condition and needed significant attention. But once the team looked more closely, it became clear that painting was only part of the problem.
There were areas where water was getting into the house, along with conditions that needed to be addressed before the painting could be completed properly.
It's a good reminder for homeowners: a fresh coat of paint can improve the appearance of a home, but it can't fix what's happening underneath it.
What Should You Check Before Painting Your House Exterior?
Before exterior painting begins, it's important to look beyond the existing paint.
A professional evaluation should consider the condition of the surfaces being painted and look for potential problems such as:
Water intrusion
Dry rot
Damaged siding
Failing or deteriorated paint
Damaged trim
Damaged corner boards
Failed or deteriorated caulking
Flashing problems
These issues can affect both the appearance and longevity of a new paint job.
Water Intrusion Can Be Bigger Than a Paint Problem
During this residential project, the homeowner initially believed the house simply needed to be painted. The team discovered several areas where water was getting into the house.
That's an important distinction.
If water is entering a home, painting over the visible damage doesn't address the source of the problem.
Tony recommended addressing the water-related issues before completing the painting work, including caulking, repairing dry rot and installing proper flashing.
Why Does Flashing Matter?
Flashing helps direct water away from vulnerable areas of a home and helps prevent water from getting into walls and other building components.
When flashing is damaged or isn't functioning properly, water can continue getting where it shouldn't.
That's why addressing flashing and other sources of water intrusion before painting can be an important part of preparing a home for an exterior paint project.
Can You Paint Over Dry Rot?
No.
Dry rot involves damaged material that needs to be evaluated and repaired before painting. Simply applying paint over damaged material doesn't correct the underlying problem.
That preparation may not be the most exciting part of a project, but it's an important part of doing the work correctly.
Waiting Can Turn a Maintenance Problem Into a Bigger Repair
One of the biggest problems Tony sees during residential estimates is homeowners waiting too long.
They know the house needs to be painted, but they keep putting it off.
By the time they call, there may already be:
Damaged siding
Faded and failing paint
Dry rot
Damaged trim
Damaged corner boards
Water intrusion
The longer a moisture-related problem continues, the more opportunity there is for additional damage to occur.
In this particular project, identifying the water intrusion gave the homeowner an opportunity to address the problem before it became more extensive.
What Happens During a Professional Exterior Painting Estimate?
A good estimate should be about more than measuring the walls and calculating how much paint will be needed.
It should also be an opportunity to evaluate the condition of the home.
Questions worth asking include:
What condition are the existing surfaces in?
Are there signs of water intrusion?
Is there dry rot or damaged wood?
Does any flashing need attention?
What preparation is necessary before painting?
What caulking or repairs are recommended?
What paint product and finish are appropriate for the project?
What happens if additional damage is discovered during preparation?
The goal isn't simply to get the house painted.
The goal is to make sure the home is properly prepared for the new coating.
The Paint Is Only as Good as the Surface Underneath It
It's easy to think of exterior painting as a cosmetic project.
And yes, new paint can make a dramatic difference in how a home looks.
But exterior paint also becomes part of the home's protection from the elements. That's why preparation matters.
If the surface underneath has unresolved problems, a beautiful new paint job can't make those problems disappear.
A Real-World Lesson From a Difficult Project
Tony considers some of the most challenging projects the most rewarding—particularly when homeowners trust the contractor's experience and allow the team to address problems correctly.
This project started as an exterior painting job.
It became much more than that.
The team identified water intrusion, recommended repairs and addressed preparation issues before completing the painting work.
The homeowner was ultimately very happy that the problems had been caught early.
And that's an important lesson for any homeowner considering a painting project:
Before you choose a paint color, make sure you know what you're actually painting.
Ready to paint your home? Start with what’s underneath.
Before choosing a color, make sure your home doesn’t have water intrusion, dry rot, damaged siding, or other repairs hiding in plain sight. IM Construction can help identify what needs attention before the paint goes on.
Planning an exterior painting project? Let’s take a look at your home.Get a residential project estimate →
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Frequently Asked Questions About Exterior House Painting
What should I check before painting my house exterior?
Before exterior painting begins, check for peeling or failing paint, damaged siding or trim, dry rot, deteriorated caulking, water intrusion and flashing problems. Addressing these issues first can help prevent a new paint job from covering up an existing problem.
Should water damage be repaired before painting?
Yes. If water is getting into the home, the source of the water intrusion should be identified and addressed before painting. Otherwise, the underlying problem can continue after the new paint is applied.
Can you paint over dry rot?
No. Dry rot involves damaged material that should be evaluated and repaired before painting. Simply applying paint over damaged material does not correct the underlying problem.
Why is flashing important on a house?
Flashing helps direct water away from vulnerable areas of a home. Damaged or improperly functioning flashing can contribute to water intrusion, making it important to evaluate when exterior problems are discovered.
What happens during an exterior painting estimate?
A professional estimate should involve more than measuring the exterior. The contractor should evaluate the condition of the surfaces, identify necessary preparation and look for potential issues such as water intrusion, dry rot, damaged siding, trim or flashing.
How do I know if my house needs exterior painting?
Signs can include faded, peeling, cracking or failing paint, exposed surfaces and deteriorating siding or trim. A professional evaluation can also identify problems that may not be obvious from the ground.
Why is preparation important before exterior painting?
Proper preparation helps ensure the surface is ready for a new coating and provides an opportunity to address damaged or deteriorated areas before they are covered with paint.
Can exterior painting fix water intrusion?
No. Painting can protect properly prepared exterior surfaces, but it does not correct the source of an active water-intrusion problem. The underlying issue should be identified and repaired first.
What should I ask a residential painting contractor?
Ask what preparation and repairs are recommended, whether the contractor found signs of water intrusion or dry rot, whether flashing or caulking needs attention, what paint product and finish are being recommended, and what is included in the estimate.
Looking Beyond the Paint
If your Portland-area home needs exterior painting, don't assume the solution begins and ends with a new color.
A thorough evaluation can help identify the repairs and preparation needed before painting begins.
Thinking about painting your home? Let's look at the whole picture—not just the paint.
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