What to Consider When Installing New Vinyl Siding: Seams


There are many things to consider when installing new vinyl siding on your home. This week, we’re going to focus on seams. What is exactly is a seam? And how can their visibility be reduced? Learn more in our blog.


Longer Length vinyl siding can reduce the appearance of seams.

Vinyl Siding Seams


What is a seam?


A seam is where two siding panels meet. They function as a joint, much the same ways joints in concrete function. The seam allows the vinyl to expand and contract along with fluctuations in temperature. This prevents the siding panel from cracking in excessive heat or cold.

What do seams look like?


Seams are very small, vertical lines where two panels meet. Some homeowners find that they interrupt the horizontal plane of the siding, and find seams visually distracting.

How can the visibility of seams be reduced?


The first thing to know about the visibility of seams is that the better the quality of the installation job, the less visible the seams will be. A poor installation job will manifest itself in a number of ways, one of them being more visible seams.

How can you ensure that your contractor knows how to reduce the visibility of seams when installing new vinyl siding? One way is to choose a contractor that has been certified by the siding manufacturer to install their product. Schaefer Siding and Exteriors, for example, is a CertainTeed 5-Star Rated Contractor

An increasingly popular method of reducing the appearance of seams during installation is to install longer siding panels.

What is Longer Length Siding?


Longer Length Siding is available from CertainTeed and is essentially just what the name says it is. The standard size for a siding panel is 12′ long. With this configuration, you’ll see a seam every 2 to 3 feet.

Longer Length Siding panels are available in 16′, 20′, and 25′ panel sizes. What this does is reduce the number of seams on the wall, creating a more aesthetically pleasing surface.

“For example, on a 20’ wall, a 16’ panel creates 35% fewer seams than a standard size panel, and a 20’ panel reduces seams by 100%,” according to CertainTeed. “Longer lengths can also reduce the amount of time required to install siding since more area can be covered with fewer panels.”

To learn more about Longer Length vinyl siding from CertainTeed, contact Schaefer Siding and Exteriors today. We’ve been installing and repairing siding in Maryland since 1977. We’re both VSI certified and a CertainTeed 5-Star rated Contractor. Contact us today at 410-781-4028 or email us. You can also visit ourwebsite for more information.