Whether it’s a shed or a house, shingling a new roof is a big job. Understanding how much does a bundle of shingles weigh will help you to plan the delivery and installation of the new shingles. If you’re replacing an old roof, then calculating the weight of the old shingles is an important part of planning for their disposal.
The average bundle of 3-tab asphalt shingles weighs between 60 and 80 pounds per bundle, while high-end architectural shingles, which are denser than standard 3-tab shingles, can weigh 70 to 100 pounds per bundle.
In this article, we’ll examine what factors influence the weight of a bundle of shingles and how knowing that weight can help you estimate the weight of the new roofing you’ll be installing on your home or shed.
- What Is a Bundle of Shingles?
- How Much Does a Bundle of Shingles Weigh?
- What Is a Square of Shingles?
- How Much Does a Square of Shingles Weigh?
- How Do You Calculate the Weight of a Bundle?
- Shingles Weight Calculator
- How Many Square Feet Does a Bundle of Shingles Cover?
- How to Estimate Shingles Weight for Your Roof?
What Is a Bundle of Shingles?
Most shingles are sold in bundles. A bundle of shingles is a package that includes about 33.3 square feet of shingles. There are 26 standard shingles in a bundle.
A bundle of shingles constituted one-third of a roofing square. Since a roofing square is 100 square feet of shingles, you’ll need three bundles for every 100 square feet of roofing.
If you’re calculating how much a bundle of shingles weighs, it’s most likely because you’re trying to determine the weight of the new roofing you plan to put on a shed or home.
How Much Does a Bundle of Shingles Weigh?
A bundle of standard 3-tab shingles weighs between 60 and 80 pounds, depending on the quality and type of shingle. Since it takes three bundles to fill one square, you can reasonably expect 100 square feet of roof shingles to weigh between 180 and 240 pounds.
Many factors determine the weight of a bundle of shingles, including type–3-tab, architectural, hip and ridge cap, and synthetic slate. A bundle of architectural shingles can weigh about 20 pounds more than a three-tab shingle bundle.
Why is weight so important? If you’re installing shingles, it gives you an idea of how much material needs to be hauled from the home improvement store to your property and onto the roof of the shed or home.
This can dictate whether it’s worth it to transport this material yourself or pay for it to be delivered to your property.
Understanding the weight of a bundle of shingles will also allow you to plan for their installation.
Hauling a dozen or more bundles of roofing to a second story is a task that needs to be well planned and prepped to be executed safely. Hauling shingles that weigh between 60 and 80 pounds up a ladder is no easy feat (professional roofing companies often use conveyors to load bundles of shingles to the roof) and may require the rental of a lift.
How you place roofing shingles on the roof during installation is also an important factor to consider. While stacking bundles of roofing shingles on the ground may be fine, they should be evenly distributed when transported to the roof instead of stacked in one place.
Stacking 70-pound bundles on the roof could put hundreds of pounds of pressure on one part of the roof, causing damage.
Understanding how much a bundle weighs can also help you determine whether you can shingle over an old roof by allowing you to calculate the combined weight of the old shingles plus the new shingles.
If you’re removing the old shingles, understanding how much a bundle weighs will help you calculate what size dumpster you need for waste removal.
By correctly estimating the amount of waste roofing material you’ll be disposing of, you can rent the right size dumpster.
Given the fact that roofing waste will pile very densely into a dumpster, you’re more than likely to reach the dumpster’s weight capacity before the waste shingles reach the lip of the dumpster.
Adding to this complexity of dumpster rental are overage fees. If you fill the dumpster beyond its capacity, most dumpster rental companies charge a fee, which can be as much as $175 per ton.
Overloading a dumpster could even damage it, forcing you to foot the cost of a new one.
3 Tab Shingles
A 3 tab shingle features three cutouts or tabs along the shingle’s bottom edge. The shingle is made to look like three separate pieces but is one large piece.
3 Tab shingles typically weigh between 60 and 80 pounds per bundle, or 180 to 240 pounds per square, which we know is 100 square feet of shingles.
Architectural shingles are sometimes referred to as dimensional or laminated shingles. They are of higher quality than standard three-tab shingles and feature a thick fiberglass base and ceramic-coated granules. As such, they are also heavier than three-tab shingles.
One bundle of architectural shingles weighs between 70 and 80 pounds or 210 to 240 pounds per square.
Hip and Ridge Cap Roofing Shingles
Ridge and hip cap shingles are specially designed shingles to cover the roof’s ridge.
Unlike standard 3-tab and architectural shingles, hip and ridge cap roofing shingles are sold by the linear foot. There are 20 linear feet of hip and ridge cap roofing shingles in a bundle. A bundle of ridge cap shingles weighs about 60 pounds.
Synthetic Slate Shingles
Synthetic shingles have the look of real slate shingles but do not use actual slate stone. Instead, these modern slate shingles are made of rubber and plastic designed to look like the real thing.
Synthetic slate shingles are significantly lighter than the real thing but still weigh about 1.25 pounds per shingle, which equates to about 67 pounds per bundle or about 200 pounds per square. In comparison, a real slate roof can weigh a staggering 800 to 1,500 pounds per square.
What Is a Square of Shingles?
To calculate the weight of a bundle, it’s essential first to understand what a roofing square is. A roofing square is simply 100 square feet of roof. For example, an 800-square-foot roof is 8 roofing squares.
How Much Does a Square of Shingles Weigh?
Since a square of shingles constitutes three bundles, to determine how much a square of shingles weighs, multiply the weight of the bundle times three. A bundle of 3-tab shingles weighing between 60 and 80 pounds per bundle would weigh between 180 and 240 pounds per square.
How Do You Calculate the Weight of a Bundle?
We already know that a bundle of shingles constitutes 1/3 of a roofing square. So, our 800-square foot roof would need 24 bundles of shingles (8 squares x 3).
If we’re talking about standard three-tab shingles, which weigh between 60 and 80 pounds per bundle, then we can determine the weight of all of the shingles on the roof. The weight of 24 bundles of 3-tab shingles would be between 1,440 (24 bundles x 60 pounds) and 1,920 pounds (24 bundles x 80 pounds).
That total weight also depends on another factor: layers. Most local building codes allow for two layers of shingles on roofs with a 4/12 pitch or less and up to three layers of shingles or more sharply pitched roofs.
If you’re installing a new roof over an old one, multiply the total weight of the shingles for the entire roof by the number of layers.
So, in our example above. An 800-square foot roof with two layers of 3-tab shingles would weigh between 2,400 and 2,880 pounds.
Other factors can also influence weight. Shingles that are more worn out and have lost a significant amount of their grit will weigh less than newer shingles.
Shingles Weight Calculator
If math was never your strongest subject in school, then use an online calculator to help you. Many dumpster rental services provide calculators that help you determine the weight of your shingle waste as well as how large a dumpster you’ll need to haul it away.
How Many Square Feet Does a Bundle of Shingles Cover?
For installing a new roof, it may be helpful to know exactly how much area a bundle of shingles covers. This will help you place the bundles strategically for installation by minimizing the number of times you need to move them.
We know that a roofing square is 100 square feet of roof and that it takes three bundles to cover that area. With that in mind, a bundle of shingles covers 33.33 square feet.
How to Estimate Shingles Weight for Your Roof?
Replacing standard 3-tab asphalt shingles on a roof with new 3-tab asphalt shingles, you don’t have to worry about putting additional load on the roof.
However, if your roofing a new structure, adding layer of shingles to an existing structure, or are upgrading old 3-tab shingles on a roof to a heavier material such as architectural shingles or synthetic slate shingles, then it’s important to know how much weight the shingles will add to avoid overloading the roof.
To do this, you’ll need to begin by calculating the square footage of the roof. You can accomplish this by measuring the length and width of each roof face.
For example, a shed with a flat roof that measures 10×16 would have a total roof square footage of 160 square feet.
For more complicated roofs with dormers and hip roofs, break up the roof into squares and triangles. For each triangle, multiple the height times the width of the base, then divide by two to come up with the area.
Measure the area of each square and triangle, then add all of the areas up to come up with an estimate for your roof square footage.
Once you know the square footage, determine how many roofing squares you have. That shed with the 10×16 roof has 1.6 roofing squares (160/100). Rounding up, that means there are about 5 bundles of shingles on the shed roof.
If these are three-tab asphalt shingles, this adds up to between 300 and 400 pounds.
Keep in mind that determining the weight of the roof cap shingles on an existing roof is different than calculating the weight of standard shingles. Remember, roof cap shingles are measured linearly with 20 linear feet of hip and ridge cap roofing shingles in a bundle.
Therefore, a roof with 40 feet of ridge caps would equate to two bundles of ridge cap shingles. Since a bundle of ridge cap shingles weighs about 60 pounds, that equates to 120 pounds worth of ridge cap shingles.
Knowing how much a bundle of shingles weighs is crucial when installing new shingles. It allows you to calculate how much weight the shingles will add to your roof, plan the delivery of the shingles, and coordinate their installation.
If you’re replacing an old roof, understanding how much a bundle of shingles weigh will allow you to estimate the weight of the old shingles accurately, so you can purchase the best dumpster size for the waste removal. To make this calculation, you need to know how heavy a bundle of shingles weighs.
The guidelines in this article will help you determine the weight of a bundle of shingles and explain how to use that information to calculate the weight of the shingles on your home or shed.