According to the code, what is the minimum slope on which asphalt strip shingles may be installed?

The minimum slope on which asphalt strip shingles may be installed is 2:12. This means that for every 12 horizontal inches, the roof must rise at least 2 inches. Installing asphalt shingles on this slope is essential for ensuring proper water drainage and preventing water from pooling on the roof, which can lead to leaks and other issues over time.

At slopes below this minimum, the performance of asphalt strip shingles diminishes, increasing the risk of water infiltration. The use of appropriate roofing materials and installation techniques for lower slopes is also crucial to maintain the integrity of the roofing system. This code helps to ensure that roofs are built to withstand weather conditions effectively, ultimately enhancing the longevity and durability of the roofing structure.

Other options suggest steeper slopes, which, while still viable for installation, do not address the minimum requirement set by code, and thus do not reflect the correct answer for the specific question asked.