How do you tell how much roofing need?

Measure your roof's dimensions. You can do this by measuring the length and width of each roof plane. If your roof has multiple levels or is an unusual shape, you may need to break it down into smaller sections and measure each section separately.

Add 10% to your measurements for overlap and waste. This will ensure you have enough roofing material to complete the job.

Convert your measurements to square feet. Multiply the length of each roof plane by the width to find the area in square feet.

Add the square footage of all the roof planes to find the total area of your roof.

Divide the total area of your roof by the coverage area of a single roofing shingle. The coverage area of a shingle is typically printed on the packaging.

The result is the number of shingles you need to purchase for your roof.

Here is a table that shows the average coverage area of different types of roofing shingles:

| Roofing Shingle Type | Coverage Area (square feet) |

|---|---|

| Asphalt shingles | 33-36 |

| Wood shingles | 24-28 |

| Slate shingles | 16-20 |

| Metal shingles | 24-32 |

These are just general guidelines. The coverage area may vary depending on the specific type and brand of shingle you choose, so be sure to check the packaging for the exact coverage area.

To estimate the amount of roofing nails or staples you need, multiply the total area of your roof by the number of nails or staples recommended per shingle. The number of nails or staples per shingle will also be printed on the packaging.

It's always a good idea to purchase a few extra shingles and nails or staples to have on hand in case of any mistakes or miscalculations.