![CVRS is ventilated roof sheathing designed for use with shingles and metal roofing. The factory made panels are built from oriented strand board (OSB) with wood spacer blocks that provide a 1” deep open space (1-1/2” optional) to allow air flow below the ... CVRS is ventilated roof sheathing designed for use with shingles and metal roofing. The factory made panels are built from oriented strand board (OSB) with wood spacer blocks that provide a 1” deep open space (1-1/2” optional) to allow air flow below the ...](http://sweets.construction.com/swts_content_files/2310/E736170.jpg)
CVRS is ventilated roof sheathing designed for use with shingles and metal roofing. The factory made panels are built from oriented strand board (OSB) with wood spacer blocks that provide a 1” deep open space (1-1/2” optional) to allow air flow below the ...
![What's Roof Sheathing and How is it Important? - Roofco: Winnipeg Roofing Contractor, Exterior Renovation Company What's Roof Sheathing and How is it Important? - Roofco: Winnipeg Roofing Contractor, Exterior Renovation Company](https://s3.ca-central-1.amazonaws.com/roofing-contractors-winnipeg/Whats+Roof+Sheathing+and+How+is++it+Important.jpeg)