How To Calculate Roof Shingles In Bundles
The roof shingle calculator does the work for you, allowing you to relax and focus on other parts of your project. Still, we understand that you might feel more confident in its results if you learn how to do the math yourself! Without further ado, lets look at how to calculate roof shingles by hand. We will break the equation into smaller parts until you get all the pieces of the puzzle!
The shortest, most straightforward answer to the question of how to calculate roof shingles is this beautiful little equation:
shingle bundles = roof area in squares × 3
That is because the average bundle of shingles covers about 33.3 ft², and a square is simply an area unit covering 100 ft², so if youd like to calculate a roofs area in squares, youd simply divide the roof area in feet by 100 and, most likely, round it up.
roof area in squares = roof area in feet / 100.
Are you working with the metric system? Dont worry head to our length converter to get the values in a unit you are more conformable with.
If you are interested, you can read on to the next section of this article to learn more about squares in construction. For now, though, this short explanation will do.
Now, lets break down the base roof shingle equation and learn how to measure a roof for shingles. We have the area in squares. But how do we get the area in normal units? To do that, we need to start with the very basic area equation:
roof footprint area = roof length × roof width.
How Many Bundles Of Shingles Do I Need For 2700 Square Feet
You will need approximately 81 bundles of standard size 3-tab asphalt shingles or 108 bundles of architectural shingles for 2,700 square feet.
Thus, for a 2700 square foot gable roof, you would need 81 bundles of shingles plus 10% of ridge, starter and wastages. Thus, it will take 81 bundles of 3-tab standard size shingles to cover 2700 square feet roof. Thus, there are 81 bundles of standard size 3-tab shingles you will need to cover 2700 square feet roof.
What Is One Square In Roofing
If you dont know what any of this article has been about so far, dont worry. One square in roofing is a measurement. Its equal to 100 square feet, or 10 x 10. That means that if you were doing a roofing job on a home that was 1000 sq ft, it would be the same as installing 10 squares of roofing material .
Recommended Reading: Are Solar Roof Tiles Worth It
What Else Impacts The Cost Of Your New Roof
Now you know how to roughly calculate your roofs square footage. And dont forget to plug that number into our roof calculator to get a rough estimate for your roof replacement.
Remember, the number of squares your roof has is one of the biggest cost factors for your replacement. But to truly understand what goes into the size of your investment, you need to know the other important factors that impact the cost of your new roof.
Because a roof replacement is such a sizable investment, we want every homeowner to understand what exactly factors into the final cost. Thats why we wrote another article breaking down the 9 factors that impact the cost of your new roof.
Since 1990, the team at Bill Ragan Roofing has proudly helped homeowners in Nashville and surrounding areas with all of their roofing needs. Giving you a positive and educational experience during a stressful time is our main goal. Even if you decide were not the right fit, at least youll have the knowledge needed to make the right decisions.
Check out this article on 9 Factors That Impact the Cost of Your New Roof to learn how a roofing contractor comes up with the final number for your replacement estimate.
How Many Bundles In A Square
Shingles are purchased by the bundle and different types of shingles are different sizes and the bundles contain different amounts. Standard shingles measure 12 x 36 and come in bundles of 29. Each bundle will therefore cover around 33 square feet.
This means that there are 3 bundles of standard shingles per square of the roof. This is similar to other types of shingles that are different sizes, even if they contain fewer shingles per bundle. However, it is still best to double-check because sometimes there are some discrepancies.
Recommended Reading: How Long Does A Metal Roof Last
How Many Roofing Squares In 1200 Square Feet
One of the most important terms you should be familiar with if you are about to start your roof replacement process is roofing square.
This article will find out all you need to know about what a roofing square is and how to calculate roofing squares.
A roofing square is a measurement unit used to calculate the size of a roof, and it is equivalent to 100 square feet. This unit makes it easier to calculate roofing square feet.
The number of roofing squares in 1200 square feet is 12. One roofing square equals 100 square feet. Converting square feet to roofing squares is an easy thing to do. For a roof of 1200 square feet, you will have 12 squares. The value is obtained by dividing the square feet by 100 .
Plan For Extra Valley Material
Valleys are either woven or cut both methods require about the same number of shingles. On a woven valley, each course of shingles is extended beyond the valley crease and at least 12 in. onto the adjacent roof plane. Youll use 2 ft. of extra shingle material for each pair of woven courses. In the case of cut valleys, the shingles from the first roof plane thats shingled also extend onto the adjacent roof plane at least 12 in. just like woven valleys. Shingles from the next roof plane are cut just up from the valley line, and the cutoff pieces usually arent big enough to use elsewhere on the roof. Order two extra shingles per linear foot of valley to account for the overlaps and cutoffs. On a 16-ft. valley, you would need 32 shingles or roughly one extra bundle.
Read Also: How To Spray Foam Insulation On Roof
How To Calculate Square Feet Of A Roof
Before you do any roofing work, you must calculate the roofs square footage to determine how much material you need. Shingles and other roofing materials, such as underlayment, are typically measured in squares that are 10 feet long and 10 feet wide, with each square measuring 100 square feet.
When calculating square footage for your roof, always add at least 10 percent of the total to account for waste.
Measure the length and width of every roof plane or surface. Include dormers . This information may be available on the homes original building plan or, if the roof surface is relatively low and flat, you can measure it yourself. If you cannot get up to the roof and measure safely, either hire a professional or make your best estimate of the roof surface dimensions.
Multiply the length and width of each square or rectangle-shaped plane. Calculate each plane separately. For example, if one roof plane measures 120 feet by 120 feet, 120 x 120 = 14,400 square feet.
Calculate the square footage for symmetrical, triangle-shaped planes by multiplying the length of the triangle’s base by its height . Then divide the total by 2 to get the square footage. For example, if a triangle-shaped roof plane measures 60 feet along the base and is 30 feet high, we have 60 x 30 = 1,800 feet, divided by 2 = 900 square feet for the triangle-shaped plane.
How Much Does A Bundle Of Shingles Cost
Pricing varies by brand and project location but on average, a bundle of shingles costs between $35 and $42. The current price for one bundle of GAFs Timberline HD architectural shingles is $40. Since youll need three bundles per square, the average shingle cost for one roof square is $105 to $126.
The cost of shingle bundles has been on the rise due to inflation, so this pricing is expected to increase over the next year.
You May Like: How To Install Corrugated Polycarbonate Roofing Sheets
How Much Does A Shingle Roof Cost For A 1200 Sq Ft House
Average cost of restoring the roof according to the size of the house: 1,200 square feet: $ 4,500 to $ 6,500. 1,500 feet: $ 5,500 to $ 8,000. 1,600 feet: $ 6,000 to $ 8,500.
How do I estimate the cost of a new roof?
The typical cost of replacing a roof can vary greatly. According to HomeAdvisor, the typical types of roof replacement costs are between $ 5,100 and $ 10,000, but the roof space can be as low as $ 1,200 or above $ 30,000. Most roofing companies will charge between $ 3.50 and $ 5.00 per foot.
How much does a 1500 square foot shingle roof cost?
1500 Sq Ft Asphalt Shingle Roof Cost Most roof repair services can range from $ 5,000 to $ 10,000 on average. It can cost about $ 7,000 to replace an asphalt shingle roof for a 1,500-square-foot home.
How Much Debris Will My Roof Replacement Create
If youre handling the roof replacement process yourself and need to order a dumpster, then you certainly need the most accurate assessment of roofing debris possible in order to make the cleanup go smoothly. In order to do this, please note the 3 common factors that contribute to individual shingle bundle weight fluctuations as well as the 3 non-shingle considerations that will affect which dumpster size to order.
Also Check: How To Insulate A Garage Roof
Hip And Ridge Cap Shingles
Hips and ridges are covered with cap shingles, which are 1-ft. shingle squares that wrap over the hip or ridge. Like regular shingles, they overlap for a 5-in. exposure.On roofs shingled with three-tab or no-cutout shingles, you simply cut standard shingles into caps. You can cap about 35 lin. ft. of ridge or hips with each bundle of three-tab shingles that come three bundles to the square. You can also salvage waste shingle pieces and portions of damaged shingles for use as caps.
For roofs shingled with laminated shingles, multi-cutout shingles, and other patterned shingles, youll have to order hip-and-ridge shingles that are manufactured as companions to the specific shingle product you are using. Theyre sold by the bundle and usually cap 35 lin. ft., but check with your supplier because some products vary. Just measure the length of the ridges and hips and divide by 35 to determine how many bundles of regular or hip-and-ridge shingles youll need.
Whats Your Roof Slope
You will also need to know the slope of your deck.
To determine this, measure the vertical rise of your deck in inches over a 12 horizontal distance.
If this rise is 4, then your roof slope is 4 in 12.
Roof slopes are always expressed with the vertical rise mentioned first and the horizontal run mentioned second.
You May Like: How To Buy Roof Shingles
You May Like: Can You Coat A Rubber Roof
Factors That Determine The Cost Of A Roofing Square
Roof pricing is determined by a variety of factors, including but not limited to:
- Your homes geographic location
- Your roofs size
- Roofing material
- Material quality
- Current market for roofing materials
- Length of warranty after the replacement
- The contractors experience level and certifications
- How quickly you need the roof replaced
Sometimes You Need To Do A Quick Calculation To See If The Numbers Stack Up We Get It
Our table of roof slope factors will help you do the maths when it comes to roof areas, sheet length and hip length. Remember, these methods are for quick estimating purposes only. Accurate measurements must be taken from the actual roof frame before ordering roofing and rainwater products.
As an example, take a typical hipped roof where all four roof sections have the same slope and all hips are of equal length.
You May Like: Hip Pain In The Morning
You May Like: How Much Does A Green Roof Cost
Can You Use 3 Tab Shingles For Ridge Cap
Shingles cover over roofing, can be made of 3 available shingles. Two simple bowls form three pieces that can be used to complete a shingle project.
Can you use shingles as a web cover? In general, design shingles will work just as well as ridge caps as they are very resistant to almost every aspect of the weather and can blend well with shingles some of your roof. Ridge caps are one of the most important parts of the roof as it is one of the first parts of the roof that people will see.
You May Like: Can You Put Skylights In A Metal Roof
Measure The Roof Pitch
When estimating the number of roof shingles, youll also need to consider the roof pitch. The higher the pitch, the more shingles you will need to cover the whole roof.
Here is how to calculate the pitch of a roof.
- High-Pitched Roof: 1.36
Dont Miss: How Much Do New Shingles Cost
Also Check: How Many Squares Is My Roof
Calculate Roof Rise And Area
Hip roof is a roof with a sharp edge or edges from the ridge to the eaves where the two sides meet. Here is the online hip roof area calculator which helps you calculate the hip roof parameters such as roof rise, common and hip rafters length and roof area based on width, height of roof base and the roof pitch . Calculating the dimensions of the hip roof rise and area would be very easy and time saving using this calculator.
How Many Architecture Shingles Come In A Bundle
Once you found out how many bundles of shingles in a square, you may wonder, is it the same as all kinds of shingles? Lets take an example from architectural shingles.
Read also: Are Architectural Shingles Worth Extra Cost.
Well, you may find many different answers regarding this topic. Some manufacturers sell 4 bundles for a square while the other sell three bundles only. The number of shingles per bundle is also different some come with 22, the other comes with 26.
For architectural shingles, since manufacturers sell different numbers per bundle, it is always important to count your roofs width beforehand. Also, it is important to know how many bundles of shingles in a square. That way, you can avoid running out of shingles.
You May Like: How Much To Thatch A Roof
Parameters That Should Be Calculated When Arranging A Hipped Roof
If we talk about the necessary calculations before carrying out installation work, first of all, we should mention how to calculate the roof area of ââ\u200b\u200ba hipped roof. The correct option here is to calculate for each of the roof slopes separately, with the subsequent addition of the results. In this case, standard mathematical formulas are used to calculate the area of ââcertain geometric shapes.
So, for example, if the slope has a triangular shape, then a perpendicular line to the base, called the height, is drawn from its top by means of a rope or cord. Further, this very height of the triangular slope is multiplied by the length of the base, and the resulting amount is divided in half. The result will be the area of ââa triangular roof slope.
For trapezoidal slopes, the formula is somewhat different: first, the length of the upper and lower bases of the trapezoid is added, then their sum is divided in half and multiplied by the height of the slope.
Another important point in calculating a hipped roof is to determine the required distance between the rafters. The size of the gaps depends mainly on the material of the roofing. So, for example, for metal tiles and corrugated board, it is 60-90 centimeters, and for bituminous tiles 100-120 centimeters, since in the latter case the roof is laid on a continuous crate of plywood.
Builder Mike Guertin Explains 3 Ways To Calculate The Quantity Of Shingles Youll Need For Your Next Roofing Job
One of the biggest challenges for experienced builder and novices alike is accurately estimating materials for a construction projectespecially for roofs, because they can be difficult to access for taking measurements.
But dont fretIn this excerpt from my book Roofing with Asphalt Shingles, I describe three reliable methods for determining the area of a roof, plus Ive included tips for estimating the number of extra shingles youll need for waste, overlaps, and starter shingles.
Note: be sure to take your time and double-check your numbers when calculating the quantity of shingles, underlayment, flashings, and other materials needed for yourroofing project. The more accurate your estimates, the less time youll waste waiting for material deliveries during the project.
Read Also: What Is The Best Roof For A House
How Many Square Feet Is A Roll Of Roofing Underlayment
Roll Self-Adhered Roofing Underlayment
How many square feet is a roll of tarpaper?
Rolls of felt coverage for roofs is sold in rolls that are one square each. One roofing square equals to 100 square feet. Always double check with the roofing calculator to make sure that you have enough felt to cover the entire area of the roof.
How long is a roll of asphalt roofing?
36 feet longAsphalt roll roofing comes in a wide variety of styles, colors and textures, in rolls typically 36 inches wide by 36 feet long that weigh approximately 90 pounds.