Achieving a flawless siding installation largely relies on the precision and accuracy of the underlying components. Siding flatness is a crucial aspect that contributes to a smooth and even surface, providing an aesthetically pleasing and durable exterior.
The substrate, which typically consists of plywood or Oriented Strand Board (OSB), must be level and free of any unevenness. Any imperfections in the substrate can transfer to the siding.
Sheathing panels, such as plywood or OSB, are installed over the substrate, providing a flat exterior surface. These panels should be securely fastened to prevent movement.
Furring strips are installed horizontally to create a flat plane for the siding. They provide additional support and help maintain even gaps between siding panels.
Siding panels are then installed in a staggered pattern, which helps distribute stress and prevent warping. Horizontal siding panels are typically installed from the bottom up, while vertical panels are installed from one end to the other.
Caulking and sealant are applied to the joints between siding panels and around openings to prevent water infiltration and maintain flatness.
By adhering to these guidelines, Hardie siding installation professionals can ensure the flatness of the siding, contributing to its longevity, aesthetics, and protection from the elements.