You’ve most likely put a lot of planning into your upcoming roofing job. What sort of roofing materials you will use, whether you will have to tear off the existing roof, and how much it will cost. You’ve probably shopped around and gotten multiple bids from contractors as well. One thing you may be over looking though is what size dumpster you will need for all the trash a roofing job creates.
Types of Shingles
The first thing you will want to consider when determining the appropriate dumpster size is what types of shingles you will be using and whether or not the old shingles will come off when your new roof is installed. These matters because certain shingles weigh more than others, and while dumpsters are measured in cubic yards, they also have a weight limit.
The most common shingle is what’s referred to as a “three-tab” shingle. This is what is on most roofs, but just be sure to confirm with your roofer, as they might use different jargon than you’re used to.
For example, they may refer to a “square” which is 100 square feet of roofing space. Generally, three bundles of shingles will cover 100 square feet, or one square. A bundle of three tab shingles generally weighs between 60 and 80 pounds. So, if you have a 2,000 square foot roof, you will have about 3,500-4,900 pounds of shingles. If you are tearing off materials other than asphalt shingles the approximate weight per square foot of material is listed in the chart below:
Approximate Weight per Square Foot
|Clay Tile||12-20 lbs|
|Concrete Tile||8-10 lbs|
|Fiberglass Shingles||4.5 lbs|
|Wood Shingles||4.5 lbs|
In addition to the shingles, you will have some other materials that need to be disposed of. Felt paper, or underlayment, and nails will also add weight to the project. To get an estimate on how much weight this will add to your dumpster, ask your contractor what size paper they will be using. It is categorized in three sizes (15, 30 or 45 pound paper.)
Felt paper generally weighs as follows: 15 lb paper about .2 pounds per square foot, 30 lb paper about .3 pounds per square foot, and 45 lb paper comes in at .5 pounds per square foot. In other words if you’ve got a 2,000 square foot roof, you can expect an additional 400-1,000 pounds from just the felt paper.
Determining the Right Size
Our most common size for roofing is our 15 yard dumpster which comes in two different dimensions. One is about 16.5 feet long, 8 feet wide, and 4 feet tall. The other is 12 feet long, 8 feet wide, and six feet tall However if the project is on a large roof and there are multiple layers being taken off, you may want to consider getting a 30 yard dumpster. These big guys are 22 feet long, 8 feet wide, and six feet tall.
If you’re still unsure of what size you might need, give us a call. One of our dumpster rental experts would love to help you select the right size. Let our team make sure your project will go flawlessly. With fast service and fair prices, we’re ready to assist.