Question 15

The dimensions of MOST three-tab asphalt shingles are 12 inches x 36 inches.

Three-tab asphalt shingles typically measure 12 inches in width and 36 inches in length, making option B the correct choice.

A) 10 inches x 20 inches.

This option is incorrect as three-tab asphalt shingles do not commonly come in this size. The dimensions are smaller than the standard measurements for asphalt shingles, which do not align with industry norms.

B) 12 inches x 36 inches.

This option is correct because it accurately represents the standard dimensions of most three-tab asphalt shingles. These measurements are widely recognized in the roofing industry, making them the typical size for this type of shingle.

C) 12 inches x 24 inches.

While this option includes a width of 12 inches, the length of 24 inches does not match the standard size for three-tab asphalt shingles. This size is not commonly used and therefore is incorrect.

D) 14 inches x 36 inches.

This option is incorrect because, although the length is accurate, the width of 14 inches does not correspond to the standard dimensions of three-tab asphalt shingles. The width exceeds the typical size, thereby making this option invalid.

Conclusion

Option B is definitively correct as it aligns with the standard dimensions of most three-tab asphalt shingles, which are recognized in the roofing industry as 12 inches by 36 inches. The other options fail to meet these commonly accepted dimensions, either by being too small or having an incorrect width.