For log siding, long logs are split down the center to create log halves, which are then nailed to the structure, creating the appearance of a log cabin. Log siding is typically made from cedar or pine logs. Cedar contains a natural oil that repels insects, including termites, and also aids in preserving the wood. This makes cedar the ideal choice, though pine is also a good option because it can be treated or sealed to repel insects and increase life span.
Vinyl siding is made from polyvinyl chloride, commonly referred to by the abbreviation PVC. Many people choose vinyl siding because it's inexpensive and can be molded to recreate the look of a number of styles. It can also be painted, allowing the homeowner ultimate control over the home exterior’s color palette. Vinyl siding, because it's made of an inorganic material, is resistant to rot and insect damage. Vinyl siding can also mimic the look of log siding.
Log siding will weather with time, potentially turning a shade of silvery gray if not regularly stained and sealed, whereas vinyl siding will not fade. Both types are susceptible to cracks or scratches, but vinyl siding is typically made to withstand the elements, including sun, rain, wind, snow and ice, without deteriorating. Log siding is organic and therefore will deteriorate even with regular care and maintenance.
Vinyl siding is significantly easier to maintain, requiring only the occasional hosing down to remove dirt and debris. Meanwhile, natural-wood siding, such as log siding, may need to be restained and resealed on a regular basis to maintain its color and durability. Proper maintenance, though, will extend the life of log-style siding.
Real-wood siding tends to last longer than vinyl if properly maintained, according to the Minnesota Green Affordable Housing Guide. At a minimum, a homeowner can expect log siding to last anywhere from 25 to 75 years, depending on the maintenance they perform. Meanwhile, vinyl siding has an average life span of 25 years.