How many inches must be provided for the slope of a roof with a specified pitch of 4:12?

How many inches must be provided for the slope of a roof with a specified pitch of 4:12?

• A. 2 inches
• B. 4 inches
• C. 6 inches
• D. 8 inches

Answer: (B)

To determine how many inches must be provided for the slope of a roof with a specified pitch of 4:12, it's important to understand how roof pitch is defined. The pitch of a roof refers to the vertical rise for a horizontal run. A pitch of 4:12 means that for every 12 inches of horizontal distance, the roof rises 4 inches vertically. When calculating the rise for a certain length of horizontal run, you can use the following method: for a 12-inch run, the rise would be 4 inches. Therefore, over a 12-inch horizontal distance (the standard measure for calculating roof pitch), the roof should rise by 4 inches to maintain the specified pitch. This makes the correct answer 4 inches. The other choices represent different measurements that do not align with the ratios of a 4:12 pitch. Understanding this relationship between rise and run is essential for ensuring proper drainage and structural integrity in roofing design.

To determine how many inches must be provided for the slope of a roof with a specified pitch of 4:12, it's important to understand how roof pitch is defined. The pitch of a roof refers to the vertical rise for a horizontal run. A pitch of 4:12 means that for every 12 inches of horizontal distance, the roof rises 4 inches vertically.

When calculating the rise for a certain length of horizontal run, you can use the following method: for a 12-inch run, the rise would be 4 inches. Therefore, over a 12-inch horizontal distance (the standard measure for calculating roof pitch), the roof should rise by 4 inches to maintain the specified pitch. This makes the correct answer 4 inches.

The other choices represent different measurements that do not align with the ratios of a 4:12 pitch. Understanding this relationship between rise and run is essential for ensuring proper drainage and structural integrity in roofing design.