Fundamentals of Residential Construction by Edward Allen & Rob Thallon & Alexander C. Schreyer

Author:Edward Allen & Rob Thallon & Alexander C. Schreyer
Language: eng
Format: epub
ISBN: 9781118978009
Publisher: Wiley
Published: 2016-02-04T00:00:00+00:00

FIGURE 12.7 This roof is being sheathed with solid sheathing because it will be roofed with asphalt shingles, the most common roofing material in North America. The eaves, because they will be exposed from below, must be sheathed with a weather-resistant material—in this case, tongue-and-groove boards.

Source: Photo by Rob Thallon

Many steep roof coverings have structural integrity of their own and thus can be supported intermittently on spaced sheathing (also called open or skip sheathing) made of 1 × 4 or 1 × 6 boards nailed across the rafters with open spaces between them (Figure 12.8). Materials such as wood shingles last longer when they are installed over spaced sheathing, which allows them to dry from the underside between storms.

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