Wood roofing / Green Building & Sustainable Home Renovation Information & Advice

...wood material. No. 1 grade shingles and shakes are free from defects like knots, sapwood, and rot, offering maximum durability and a premium appearance. They are ideal for roofing and high-visibility siding applications. No. 2 Grade ('Red Label') This grade allows for some limited defects, such as flat grain, sapwood...