PVC is a well-known, high-performance material that works well for decking, siding, and building exteriors. Laying PVC trim is very similar to laying shingles, but much simpler. Because PVC sheeting is the same size, lightweight, and bendable, it is much easier to install. This material is low-maintenance and won’t get wet, making it a great choice for outdoor projects.

Continue reading this article to learn more about PVC trim and how to install it.

1. Basics of PVC Trim

PVC trim and decorative panels are made from polyvinyl chloride plastic, which does not contain any organic components. This has some benefits such as waterproofing, better functionality, and low maintenance. Because PVC is so durable and non-absorbent, it is a great choice for many outdoor uses, such as:

• Fascia
• Window trim
• Skirt boards and bands
• Corner boards for siding
• Column wraps
• Stair risers

PVC comes in a variety of colors and even shapes that look like solid wood. You can also heat bend it into any shape you want, making it the perfect material for crafts and patterns.

One thing to note is that PVC trim is more expensive than many types of wood. However, it is worth the cost in the long run. You don’t have to replace it very often because it lasts a long time and doesn’t require much maintenance. You can also paint it to match the style of your house.

1.1 Storage and Handling

Before you are ready to use the PVC trim, place it on a flat, level surface with the protective coating intact. Keep cool and out of direct sunlight. It is best if the temperature remains constant as this prevents the boards from expanding or contracting during installation.

It is important to install the PVC trim as soon as you cut it. This way changes in temperature will not affect its dimensions. Since PVC is more prone to bending than wood, make sure that all frames and substructures are level to avoid uneven areas.

Hiring a professional installer will ensure that your outdoor project is installed correctly and will last for a long time.

2. Installation Instructions for PVC Trim

2.1 Cutting and Trimming

What tools are needed to cut PVC trim and moldings? The same tools are used for wood and composites. Blades with carbide tips work well for both wood and PVC. Do not use metal cutting blades with small teeth.

You can also choose the saw that works best for you. It is best to use a power saw, but table saws and circular saws will also work. When cutting, cut using the same method used to cut wood:

• For accurate data, you need to measure twice.
• Mark the position to be cut with a speed-angle ruler.
• Cut with the saw.

After cutting, you can sand the cutting surface to make it smooth. If the ends of PVC trim are to be joined together, miter joints are stronger and better than butt joints.

2.2 Installation of Trim

Installing PVC trim on a frame is as easy as installing wood trim. You can use nails or screws that won’t rust, are at least 1.5 inches long, and have a flat head and a full round head. For a smooth finish, you can also use hidden fasteners. When pre-drilling holes in PVC trim, take care to avoid heat buildup caused by friction.

When laying PVC trim, try to hide the cut-off ends and place the original ends in the center. In most cases, this will be more perfect. Also, make sure all the pieces fit together well before slicing.

When you’re ready to install the trim, keep the following tips about fasteners in mind:

• Use two fasteners per frame member.
• Screw a few extra screws into 12-inch or larger trim boards, but not more than 8 inches on the center.
• Use screws or bolts within 2 inches of the ends of each plank.
• Screw two screws on each side of the board joint.
• Each fastener must hit a solid part of the frame.

Don’t forget that PVC expands and contracts with temperature changes, so keep this in mind when placing trim. Every 18 feet there should be a 1/8-inch gap between the PVC trim and the mullions to allow for expansion and contraction. Also, make sure the ends of the joints are glued together so they do not separate.

2.3 Glueing the Ends of PVC Trim Together

Gluing is one of the great advantages of PVC that wood does not have. Gluing or gluing will waterproof the joints and make them stronger.

First, make sure that the areas to be glued are clean and tidy and that the trim is in full contact with these areas. To join two PVC panels together, apply water-based cement glue to the ends and allow to dry before clamping or screwing.

Cement glue can be applied in 5 to 10 minutes and takes 24 hours to fully cure.

3. How to Obtain a Smooth Surface

We’ve covered the most basic ways to install PVC trim, but there are more ways to make your design unique. You don’t need to use these methods to install a good trim, but they will make your work look better.

3.1 Route Trim Edges and Inserts

You can groove PVC molding and trim for sharp, neat edges. Also, you can add stylized grooves to PVC trim. An ordinary router will do the job well. For this job, you should also use a router bit with a carbide tip, just as you would use a saw blade.

3.2 Heat Bend Curves

PVC trim that works well can still be used for curved decking or window frames. Heat can bend PVC into almost any shape, which helps to maintain a consistent appearance or make interesting patterns. It is important to note that heat bending should be done by someone who is trained to do it. If you are interested, talk to a skilled contractor.

3.3 Painting a Unique Finish

Paint can easily change the appearance of PVC, consult the manufacturer of PVC trim and ask what type of paint they are suitable for. You can paint PVC to make it look even better. But it doesn’t need to be protected with paint like wood.

We recommend acrylic latex paint because it has better adhesion and a better finish. Use only colors with a light reflection value of 55 or higher. This is because darker colors retain heat in the object, which can lead to expansion or fracture.

4. Summary

The process of installing PVC trim isn’t any more difficult than using wood, but you’ll appreciate the low-maintenance nature of PVC decking. It will spare you the hassle of regular maintenance and upkeep. Do you want to change the look of your house and deck? You should find a contractor who can help you develop a plan that will allow you to better enjoy your outdoor living space for years to come.

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