About Exterior Window Moldings

About Exterior Window Moldings

Exterior window moldings increase a house’s aesthetic appeal. But is that the only benefit you can gain in installing these materials? To answer this query, installing moldings also bring forth stability. Without a support system, windows may fall and break unknowingly. Furthermore, when installing moldings, you don’t have to pay much. These materials are very affordable. With the benefits it provides, it’s not a total loss of your money’s worth.


When it comes to window moldings, it can either be installed interiorly or exteriorly. For this article, the main concept is all about exterior window moldings. What are the fundamentals you ought to know in installing one?

First, before installing one, you have to know what type of material you can use. Next is waterproofing it. This method can increase the strength of the moldings in resisting natural elements. Lastly, you will also learn how the installation process goes. With these basic details, you will be able to furnish your homes with window molding in no time.

Types of material

There are 4 materials you can opt for your exterior window moldings. In doing this, take you budget into consideration. With proper waterproofing techniques, all these materials would last long.

  • Wood – The most commonly used material in homes made of wood, bricks and cement is wood. Ideally, this is the best when it comes to accentuating your home value. However, wood is susceptible to natural elements and insect infestations. This makes it less durable compared to the other materials.
  • Metal – Aluminum is the widely used metal in terms window trims. Compared to wood, it’s less expensive and more resilient to natural elements including fire. There are also available window trims that are pre-baked by the manufacturers. Hence, you don’t have to worry about waterproofing. The downside is it can be easily scratched and indented.
  • Plastic – Compared to aluminum structures, polyvinyl chloride moldings are more durable. Both materials have the same output when it comes to functionality and maintenance value.
  • Cement-coated foams – The recently marketed window trim is the cement-coated foams. Here, a foam component, commonly known as synthetic stucco is coated with cement. This material can be easily installed since its lightweight. You also don’t need to worry about cracks and damages caused by natural elements since it is sturdy enough to withhold them.

Waterproofing and installation

It is best to waterproof the exterior window moldings first before installation. However, you can do it the other way around if it is more convenient. In terms of waterproofing, house paints are the widely used material. It’s cheap, long lasting and very efficient.

When installing window trims, it is done by creating a 45° angel from the top and bottom trims. For the other pieces, you can cut and place them in the remaining spaces also creating a 45° angle. Once it is properly installed, you have to caulk all cracks and nail holes including all miter joints. Most individuals install drip caps on top of the moldings. This will aid in preventing water related damages since it will shed off the water from the trim.

With all that, you can now opt for exterior window moldings to increase your house’s appeal; it’s easily installed, very affordable and worth your effort and time.