A: It can be tricky to know when the wear on your roof stops being repairable and needs replacement.

Here’s one good rule of thumb: a small spot of wear or storm damage can generally be repaired. Depending on where you live if it affects more than 30% of your roof, the cost may be high enough to warrant replacement. Some areas may require replacement in certain cases, so always consult your local building codes. Extensive damage to deeper layers below the shingles may also require replacement.

We discuss roof replacement vs. repair in more detail here.