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How to Seal Siding to Concrete in 10 Simple Steps

Sidings are a great way of protecting your home from rain, heat, and snow. Moreover, some good siding makes the exterior look attractive and increases the house’s value. However, it’s important to seal the siding properly.

How to seal siding to concrete?

Before sealing siding to concrete, choose the best siding option. Afterward, you’ll need to clean the concrete and caulk the cracks. Then cut out the siding strips by measuring the length and height of the concrete walls. Prepare the corner strips as well as the horizontal ones. Once you’ve attached the horizontal sidings, simply seal them to the concrete. And paint away.

To get a detailed answer to your question, head over to our article. Without further ado, let’s dive right in!  

The Siding Options Available to You

Nowadays, you can find different types of sidings out there. And the most interesting part is that- 

You can use almost all of those with concrete. 

But there’s a catch-

You need to decide which type of siding to use. Your priority might be durability or it can be low cost. You might also want to install a siding that is easy to clean. The wrong siding will not satisfy these needs and it’d seem like all your efforts have been wasted.

Now, let’s explore some pretty popular siding options. 

Vinyl Siding 

Vinyl is the most common type of siding. It’s available in every color. Moreover, it’s extremely manageable and requires minimal care. 

That’s not all-

It’s super easy to clean vinyl sidings. All you have to do is take up your hose. And spray to your heart’s content. You’ll see it shining in no time. 

Now, let’s get down to the real business. How exactly is it connected to concrete?

Vinyl siding provides pretty good insulation. What does that mean?  Well, it means that it’ll keep your home’s interior cozy and comfortable even in extreme weather conditions. 

Wood Siding 

It’s amazing how wood can be both cheap and super premium at the same time. 

When it comes to choosing wood siding, you need to be aware that maintaining it can be a costly business. 

Compared to vinyl, wood is a more expensive option. However, It’s not as manageable as vinyl since it rots easily and catches mold.

But this can be an awesome option if you have a knack for rustic looks. However, while going for this make sure that you’ve got some basic woodworking skills up your sleeves. 

Aluminum Siding

Aluminum siding is the cheapest option available. The reasons are its lack of attractiveness and poor durability. It can incur minor damage because aluminum is a soft metal.

The good news is aluminum siding is eco-friendly. This siding is made from recycled aluminum. Rest assured, your old siding will never end up in a landfill. 

However, keep in mind that aluminum needs a lot of maintenance and repair. You might have to remove studs every once in a while. Nevertheless, it provides good insulation. 

Fiber Cement Siding

Fiber cement siding is the most environmentally friendly option. It’s gradually becoming popular but still it’s far from being flawless. 

If you are an environment-conscious individual, you’ll love this siding. This is because the ingredients of this siding are chemically inert and so it does not release harmful substances into the environment.

It’s pretty expensive. Moreover, its maintenance is a tough job. But overall, it has great looks and durability. 

The Best Option for You 

“So which option should I choose?” – I hear you ask. The answer lies mostly in your own preference and the location of your home. 

If your house is located in a wetter region, you’ll need something close to waterproof. Remember our friend vinyl? Yeah, it’s pretty much known for its weather resistance features. 

You can also put vinyl over aluminum siding, if you want. On the other hand, if you have a penchant for vintage and rustic, you can make do with wood.

Now that you know which siding will suit you the best, it’s time to seal it to the concrete. So let’s get started! 

Sealing the Siding to the Concrete in 10 Easy Steps:

Before laying your hands on the main task, be sure to gather the following tools:

  • Caulk gun
  • Circular saw
  • Cleaning hose
  • Construction adhesive
  • Cordless drill
  • Drill bit set
  • Duct tape
  • Experimental lumber
  • Hammer
  • Level
  • Measuring tape
  • Primer spray
  • Razor knife
  • Sealant
  • Siding boards
  • Stiff bristle brush

You will also need the following materials: 

  • Acrylic caulk
  • 2 inch Screws 
  • 3 inch trim head screws
  • Liquid Cleaning agent
  • Paint

Now it’s time to wear the carpenter’s hat and give your house a fresh new look with super beautiful sidings. 

Step 1: Clean out the Concrete

The first step is to clean out the concrete. The accumulation of moisture, dirt and mildew can easily damage your walls. 

So to clean the concrete mix 2 teaspoons of a strong cleaning agent in water. Next, use a cleaning hose to wash the concrete with the mixture. 

After washing, use the stiff bristle brush to scrub away any dirt. Once done, let the concrete dry off. All this will take an hour or so depending on the moisture in the air. 

Step 2: Caulk the Cracks in the Concrete

After done with cleaning, fetch that caulk gun of yours. 

Fill up the gun with a latex and silicone based caulk. Some caulks come with built in anti fungal properties. And these are super effective in destroying molds. 

Once the gun is ready, start applying the caulk thoroughly to cover any hole and crack on your concrete. 

Step 3: Measure the Length and Height of the Concrete Walls

With a measuring tape, measure the length and height of each concrete wall. 

With a circular saw blade, cut out horizontal sidings. Cut the length 2-2.5 inches shorter than the whole distance of the wall. This is done due to expansion considerations. Use the height in the same way to cut out the vertical sidings for the corner.

Step 4: Prepare the Siding Strips

For the quoin, cut the corner siding strips to the length by scoring with a razor knife and then snapping. 

Use a spray primer to prime the hard ends of the siding strip. This will even out any sharp edges and will also provide a good base for painting. 

Around window or door openings, you have to carefully cut voids for the planks to properly fit. Take measurements of the doors and windows carefully and then you are good to go!

Step 5: Create the Corner with the Siding Strips

Next, to make the corner, place one strip of siding over the other. 

Do this in such a way that the two ends of each meet to form a right angle. To provide support, you’ll need an experimental piece of lumber below the upper strip. 

For example, if the strip measures 1×4, a 2×4 piece of lumber will do. 

Apply the construction adhesive to along the edge of the upright board. After that, carefully add a few screws along the length of the corner to secure them in place after drilling holes.

Step 6: Fix the Corner to the Concrete

Now set the assembled corner on a quoin of your house. Secure it to the wall using trim head screws. 

Pre-drill holes through the strip and concrete on both sides of the corner. Then fix it firmly on the wall with nails. 

Step 7: Cover the Inside Corner

Before attaching the siding on the inside corner, apply a generous amount of sealant at the concrete corner seam to prevent water intrusion.

Then place the strip vertically at the desired position and mount it with several trim head screws. 

Step 8: Attach the Horizontal Sidings

Position this strip in a way that it overlaps the concrete floor but yet stays several inches above the concrete porch pad. Check the level, and screw in into position placing fasteners about an inch and a quarter from top of the board. 

Place the next strip in such a manner that it overlaps the first one by two inches. This is enough to cover the screw heads of the first board. 

Continue to add the rest of the siding strips up the wall like this. Make sure you prime all cut ends before installation. 

Step 9: Seal the Sidings to the Concrete

Now it’s time to seal the sidings. 

Start by attaching duct tape on the top edge along the entire length of the lowest siding strip. Then use the caulk gun to close the gap between this strip and the strip directly above it.

Remove the duct tape after the caulk has dried off. Repeat this step for sealing the rest of the strips. 

Step 10: Paint the Strips

Paint the strips with colors to your liking. It is better to use waterproof paint. This will make cleaning a very easy job. The finishing touch is added. Your house now looks gorgeous!


Question: Should you seal the bottom of siding?
Answer: You should never seal the bottom of siding. Through the bottom, water is meant to exit. The accumulation of water will cause permanent damage to your concrete. 

Question: What do you use between wood and concrete?
Answer: Applying a water-impervious membrane or vapor retarder will do. This is because wood easily absorbs water. Using something that is waterproof will protect the wood siding. 

Question: What is the best caulk for siding?
Answer: Polyurethane. Most caulks become yellow as time passes. This caulk does not yellow over time from UV-ray exposure. 

Bottom Line

We hope this article will help you seal the siding to the concrete of your home. 

In case you have further queries, do let us know in the comments. We’d love to hear from you.

Till then, take care!