Internachi certified professional inspector
Common Types of Siding
Different areas of North America tend to favor one specific type of house siding and Nova Scotia is no exception. In this week’s blog post, we look at some of the most common types of siding seen in our province.
This is the most popular choice in North America (about 1/3 of all installations) and is the overwhelming choice for homes in Nova Scotia. It has largely replaced wood and metal siding due to its combination of value, durability and lack of required maintenance. Not only does vinyl siding not need to be painted, but the colour goes all the way through the material and doesn't just cover the surface, meaning a scratch or other minor damage will not affect its appearance. Home inspectors look at several concerns such as signs of waviness, joints not staggered properly (a clear sign of poor or amateur installation) and proper detailing around windows, doors, and other penetrations.
While relatively easy to install, it still takes skill to do properly. It has recently come to my attention that in my subdivision, the installation techniques were far from high quality, a fact I can personally attest to that when in 2018 we lost a significant amount of siding. These deficiencies can be hard to detect during a standard home inspection.
Masonry (Brick, Stone & Concrete)
I have previously covered this type of siding in a previous blog post. Inspectors look for signs of spalling, mortar deterioration and bowing walls (more common in older installations). In my experience these are usually quality installations by skilled masons and are generally well maintained.
Wood Shingles and Shakes
Most wood siding is composed of cedar due to its rot resistance. Other species of wood can be used (such as pine) but it requires additional preservatives to protect against rot. Wood siding also requires regular maintenance (such as painting or staining) and has little in the way of fire resistance. There are many different types of wood siding installation:
Asbestos is a scary word and as a result asbestos cement siding has received an unfair bad reputation. As can be seen on my previous posts on asbestos, it is only dangerous in a friable state. Translation: there is no danger if the siding is not disturbed by heavy mechanical damage. Overall, it is a good siding material but since it was discontinued many years ago properly repairing it may be difficult, if not impossible.
Modern versions of fiber-cement are commonly known by its main trade name Hardie board. It has many of the advantages of asbestos siding without the…. you know…. asbestos. It can be very hard to tell apart from wood and possibly my single biggest goof up as a home inspector was mistaking Hardie board for wood siding. It was located only in a specific area of the home on the second level and it taught me to always verify my visual observations by touch as much as humanly possible.
Even though these two systems look identical, they are quite different. They are also common…. in commercial settings. Despite being very common on homes in other areas of North America, they are very rarely seen on houses in Nova Scotia. I actually had to do some research on these two types of siding and why they aren't more common, to which I will share my findings in next week’s blog.