When you set out to install or replace your new roof, one of the initial questions you will encounter is: how to estimate roof area? This kind of calculation is very critical since it will directly impact the quantity of the roofing material you will require and the overall price of the project. So, let’s learn how to plan your roofing project with confidence.
Why Knowing Your Roof Area Matters
The precise estimation of your roof’s size can be beneficial in a variety of ways:
- Cost Plan:
Materials for roofing are available by the square foot; therefore, knowing the size of your roof can prevent overspending. - Effective Material Ordering:
It can help avoid delays that are caused by ordering too few items or the cost of buying too many items. - Project Accuracy:
Helps your contractor give an accurate quote and timeframe.
Step 1: Learn the Basics
Roofing is usually measured in squares. There are 100 square feet in one roofing square. Say you have a 2,000 square foot roof, then you will need about 20 roofing squares.
Also, learn “How to install rain gutter?”
Step 2: Measure the Ground Footprint
Start by measuring both the length and the width of the bottom of your home. To determine the area of the base, add these two numbers.
Step 3: Factor in the Roof Pitch
Most roofs aren’t flat. They have a slope (pitch). The more steep it is the pitch, the bigger the area. To take this into account, you’ll require a pitch multiplier:
- Lower angle (3/12 pitch) Base area: Multiply base by 1.03
- Medium slope (6/12 pitch): Multiply by 1.12
- Slope steep (9/12 pitch): Multiply by 1.25
If your home’s base area is 1000 sq. feet, with a pitch of 6/12, then the roof area would be approximately 1,120 sq. ft.
Step 4: Add Complex Sections and Overhangs
Do not forget to add overhangs, dormers, or other roof sections. Each one is measured separately, and then the square area is calculated.
Read more: What Is Roof Decking?
Pro Tips From Only Roofing
- Always always add 10% more material for cutting and scraps.
- Make use of apps or digital tools to obtain a more precise measurement of pitch.
- When dealing with a multi-level or complex roof, it is advisable to consult an expert in roofing.
Our qualified roofers will provide you with great quality Commercial Roofing services!
Final Thoughts
When you learn how to estimate roof area, it is much easier to plan the roofing project you are about to take on. You can save time and money in making a DIY shed or roof replacement if you make accurate measurements of the materials.
Do you need professional help with roofing inspection or repair? Contact Only Roofing and have our experts assist you with the entire process!
