What is recommended for spacing when using 1 x 4s for wood shingles?

When installing wood shingles, proper spacing is crucial to allow for expansion and contraction due to changes in moisture content and temperature, as well as to promote drainage and airflow. Using 1 x 4s for wood shingles typically involves determining the spacing based on the weather exposure, which refers to the part of the shingle that will be exposed to the elements once installed.

Spacing on center equal to the weather exposure ensures that each shingle is adequately supported while still allowing enough space for water to flow and evaporate. This method helps prevent water from pooling, which can lead to rot and other issues with the shingles. By aligning the spacing to the weather exposure, you also help maintain a uniform appearance and the integrity of the overall installation.

In contrast, defining spacing based on specific inch measurements, like every 8 or 10 inches, doesn't take into account the actual exposure of the shingles, which may vary based on design or climate considerations. A rigid measurement could lead to improper installation or inadequate support for the shingles, resulting in potential problems over time. Therefore, using the weather exposure as a reference for spacing is the best practice, ensuring both functionality and aesthetics in roofing applications.