If you are considering installing a metal roof on your home, you know it’s an important investment and one that will add long-term value to your property. When dealing with roofing, there are many aspects to consider – including the style of the roof and what kind of materials you’ll need. In particular, the installation of a hip roof requires special consideration; after all, this type of structure presents unique construction challenges due to its angled sides.

That’s why knowing how to figure metal roofing for a hip roof is so essential – not only do you have to pick the right material but also determine the amount and length needed in order to achieve proper coverage.

Why is It Important to Get the Right Amount of Metal Roofing?

Well, not only does it affect the aesthetic appeal of your home, but also ensures that your roof will be properly sealed and protected from harsh weather conditions. Inadequate coverage can lead to leaks and other issues in the future. Furthermore, installing too much metal roofing can result in unnecessary costs. Therefore, it’s crucial to accurately calculate the required amount of metal roofing for a hip roof before making any purchases.

11 Step-by-step Guidelines on How to Figure Metal Roofing for a Hip Roof

Step 1: Measure the Footprint

Start by measuring the length and width of your roof. Multiply these two numbers to get the total square footage. It’s important to remember that a hip roof has four sides, so make sure to measure each side separately and add the totals together. But don’t worry, the calculations will be done later on. You can use a measuring tape or an aerial measurement tool for more accurate results.

Step 2: Determine the Slope

Using a level, determine the pitch of your roof by measuring the vertical rise over a 12-inch horizontal run. This information will be necessary for calculating the accurate amount of metal roofing. You can find slope conversion charts online if needed. It’s worth noting that metal roofing is suitable for slopes of at least 3:12. It’s not recommended for flat roofs.

Step 3: Calculate the Roof Area

To get the total roof area, multiply the square footage by the slope multiplier. For example, if your hip roof measures 2000 square feet and has a slope of 6/12, the total area would be 2400 square feet (2000 x 1.2). You can also use an online roofing calculator for a quick estimation. It’s always better to double-check your calculations for accuracy.

Step 4: Subtract Protrusions

Next, subtract the area of any protruding structure from your total roof area. These can include chimneys, skylights, or vents. Make sure to measure each one separately and subtract the totals from the overall roof area. Otherwise, you may end up purchasing more metal roofing than needed. It’s better to have a little extra than not enough, but it can also be a waste of money and material.

Step 5: Calculate the Panel Length

The panel length refers to the distance from the ridge to the eaves. To determine this, you’ll need to know the size of your metal roofing panels. Typically, they come in standard lengths of 8, 10, or 12 feet. You can calculate the number of panels needed by dividing the panel length into your roof area. This will give you the number of panels needed for each side of your roof.

Step 6: Find Out How Many Rows You’ll Need

Now that you know the panel length and how many panels you’ll need, it’s time to figure out the number of rows. This is calculated by dividing the eavens perimeter by the panel length. For example, if your eaves measure 150 feet and you’re using 8-foot panels, you’ll need 19 rows (150/8 = 18.75). Always round up to the nearest whole number.

Step 7: Determine the Required Overhang

To get proper coverage, you’ll need to have an overhang between 1.5 to 2 inches on each row. This can be achieved by using a drip edge or Z-bar flashing. To calculate the required overhang, multiply the panel length by the number of rows and add 3 inches for each side (eaves and ridge). For example, if your hip roof is 40 feet long and you need 19 rows, you’ll need a total of 79 inches (40 x 19 = 760 + 6). Divide this number by 12 to get the required overhang in feet (79/12 = 6.58 ft).

Step 8: Calculate the Hip Length

The hips refer to the angled sides of your roof. To determine their length, you’ll need to divide the hip length in half and add it to your panel length. For example, if your hip measures 24 feet and you’re using 8-foot panels, you’ll need a total of 27 panels (24/2 = 12 + 15 = 27). Repeat this calculation for each side of your roof.

Step 9: Consider Ridge Cap Coverage

A ridge cap is a material used to cover the top of your roof where the two angled sides meet. It’s usually made specifically for metal roofing and comes in various lengths and widths. To determine how much you’ll need, measure the length of your hip ridges and add an extra foot or two for overlap. You’ll also need to consider the number of rows and how many panels will be needed for each row.

Step 10: Account for Waste

It’s always recommended to account for a 5-10% waste factor when figuring metal roofing for a hip roof. This is important in case of any mistakes or measurement errors during installation. You don’t want to be left short on materials and have to make additional purchases, resulting in higher costs. It’s better to have a little extra just in case.

Step 11: Consult with a Professional

If you’re unsure about any of the calculations or are not confident in your abilities, it’s always best to consult with a professional roofing contractor. They will be able to accurately calculate the required amount and provide expert advice on materials and installation methods. It may cost a little extra, but it’s worth the peace of mind and ensuring a successful project. 

So, if you’re planning to install metal roofing on your hip roof, make sure to follow these step-by-step guidelines on how to figure metal roofing for a hip roof for accurate measurements and avoid any potential issues in the future. Remember that proper estimation is key to achieving a long-lasting and visually appealing metal roof for your home.

Frequently Asked Questions

Q: Can I Use Metal Roofing on a Flat Roof? 

A: No, it’s not recommended as it can lead to water pooling and potential leaks. Metal roofing is suitable for slopes of at least 3:12.   

Q: How Do I Measure for Metal Roofing? 

A: You’ll need to determine the slope, calculate the roof area, subtract protrusions, determine panel length, find out how many rows you’ll need, calculate required overhang, determine hip length, consider ridge cap coverage, and account for waste. It’s recommended to consult with a professional for accurate measurements. 

Q: What Is the Difference Between Metal Roofing Panels and Shingles? 

A: Metal roofing panels are one large sheet of metal, while shingles are smaller pieces that overlap each other, similar to traditional asphalt shingles. Metal roofing panels are more durable and long-lasting compared to shingles. 

Q: Can I Install Metal Roofing Myself? 

A: It’s not recommended to install metal roofing yourself unless you have experience and knowledge in roofing installation. Improper installation can lead to issues such as leaks and damage to your home. It’s best to consult with a professional roofing contractor for installation. 

Conclusion

Taking the time to properly calculate and figure your metal roofing for hip roof takes planning and patience. It’s worth investing in the necessary materials like fascia gutters, drip edges, eave closures, and hip/ridge caps to ensure a sturdy, attractive, and reliable coverage for your structure. Don’t forget to consult with an expert if you ever find yourself at a loss as well as brushing up on the local codes in your area to make sure you are following all regulations.

Make sure to bypass any contractor who wouldn’t be able to provide certified installation services with a warranty attesting to its soundness. That way, you can confidently move toward installing an aesthetically pleasing yet robust roof that will last for years to come. Explore all of your options and carefully consider each cost-effective element before making any deciding decisions about how best to invest in a dependable roof system that optimizes durability and style. Thanks for reading this article on how to figure metal roofing for a hip roof.