how many shingles do i need to lay a first course on a 300 foot perimeter roof

Depending on how you're going to organize your rows and courses, some roofers like to cut five variable sizes of shingles when using the basic three-tab variety. Basically, you'll cut off one-half tab-width of the first tab to start the first course, changing the necessary area to fill with each row, shifting the "slots."

Full Answer

How many bundles of shingles do I need to cover 300 square feet?

For most shingle types, you'll need 3 bundles to make a square of finished roof, which is 100 square feet. If you have a roof area of 3000 square feet, you'll need 90 bundles of shingles. Shingles with 4 bundles per square will require you to purchase 120 bundles for a 300 square foot roof.

How do I figure out how many shingles I need for my roof?

This makes it relatively easy to figure out how many shingle bundles your roof requires: simply multiply the number of roofing squares by three. If your roof's area were equivalent to about 20 roofing squares, then you would need about 60 bundles of shingles.

How many square feet will 4 bundles of shingles cover?

How Many Bundles Are In a Roofing Square? Roofs are measured in roofing squares, with each square representing 100 square feet of roof. Since a bundle offers around 33 square feet of shingles, you'd need roughly three bundles per square.

How many shingles does it take to cover 400 square feet?

Thus, for a 400 square foot gable roof, you would need 12 bundles of shingles plus 10% of ridge, starter and wastages. Thus, it will take 12 bundles of 3-tab standard size shingles (12″×36″) to cover 400 square feet roof.

How much does 1 pack of shingles cover?

about 33 square feetStandard shingles are 12 by 36 inches and come 29 to a package. Most shingles come 3 bundles to a square — which is equal to 100 square feet. So, each bundle provides about 33 square feet of coverage. Your contractor will calculate how many shingles you'll need for the job.

How many squares is a 1500 sq ft house?

For a 1500 square foot house, you will need approximately 19 squares or 57 bundles or 1653 pieces of 3-tab standard-sized shingles (12 inch by 36 inch) when overhangs is 1 feet and roof slope is 4/12.

How many squares is a 1000 sq ft roof?

Please share if you found this tool useful:Conversions Table10 Square Feet to Roofing Squares = 0.1800 Square Feet to Roofing Squares = 820 Square Feet to Roofing Squares = 0.2900 Square Feet to Roofing Squares = 930 Square Feet to Roofing Squares = 0.31,000 Square Feet to Roofing Squares = 1012 more rows

How do you calculate roof squares?

To find how many squares are on your roof, divide the total square footage of all your planes by 100. In our example, the total was 25.2 squares — 2,520 sq. ft. divided by 100.

How do I figure out how much roofing I need?

To do so, use a tape measure to determine the room's length and width. Then multiply the length by the width to get your square footage. For instance, if the room is 12 feet wide and 12 feet long, you will need enough flooring for 144 square feet (12×12=144).

How many shingles do I need for a 1200 sq ft house?

Thus, to cover roof of a 1200 square foot house, you would need 48 bundles of shingles. Thus, it will take 48 bundles of 3-tab standard size shingles (12″×36″) to cover roof of 1200 square feet house. Thus, there are 48 bundles of standard size 3-tab shingles you will need to cover roof of 1200 square feet house.

How many square feet does a square of shingles cover?

100 square feetRoof areas are generally referred to in the roofing industry using a term called a “square,” which is simply 100 square feet of roof area.

How much does a square of shingles cost?

Prices are based on a cost of around $30 to $35 per bundle of asphalt three-tab shingles or about $90 to $100 per square....Price of Roofing Shingles Per Square Foot.Roof AreaCost of ShinglesRoof AreaCost of Shingles750 square feet$700 - $8001,000 square feet$910 - $1,1003 more rows•Aug 26, 2022

How many shingles do I need for a 12x12 roof?

Asphalt shingles and most other roof shingles are typically available in bundles. For each roofing square or 100 sq ft, you will need three bundles of shingles. The average size of 12×12 shed roof is 3 squares, which typically requires 9 bundles of three-tab asphalt shingles or any other starter strips.

How many bundles of shingles do I need for 1200 square feet?

For a 1200 square foot house foot print, you will need approximately 16 squares or 48 bundles or 1392 pieces of standard size 3-tab shingles (16×3 = 48 bundles) to cover roof. Thus, to cover roof of a 1200 square foot house, you would need 48 bundles of shingles.

How do you calculate roofing?

Multiply your house length by your house width to get the area. (For example, 40 feet x 30 feet = 1,200 square feet.) Next, multiply the area by your roof's pitch. (1,200 x 1.05 = 1,260 square feet.)

How many shingles do I need for a 10x12 shed?

Calculate the square of rise and run and sum it:- square of rise 6×6=36, square of run = 12×12 = 144, add both 36 +144 = 180. Multiply the product by the flat roof area and divide by 100:- our 10×12 shed square footage with overhangs is 168 sq ft, so 1.118 x 168 = 188 square feet, 188 / 100 = 1.88 squares.

What Is A Bundle Of Shingles

A bundle of shingles is one package of shingles. Shingle manufacturers will package their bundles so that several usually 3 or 4 will add up to 100 square feet. A bundle of shingles will contain anywhere from 15 to 29 shingles, depending on the type and size.

Need A Rooferget 4 Free Quotes From Local Pros

Below, there is a simple triangle, and the math used to work out how to make a proper measurement. Once you work through the basic triangle, we will review a typical roof, and how to apply some simple math to calculate how much material you will need for a roof used in our hypothetical example.

How Many Roofing Shingles Do I Need

To estimate how much roofing material you need, such as bundles of architectural shingles or rolls of synthetic roofing underlayment, you need to know the total square footage of your roofs surface.

How Many Nails Required

After you are done calculating the total square footage, you need to determine the number of nails you will need.

Plan For Waste Factor

The only roof that will generate no waste from cutting is that rare simple gable whose roof length is divisible by the 3-ft. length of a shingle. Other simple gable roofs will require cut shingles at the rakes. From there, the waste factor increases with every obstruction, such as a chimney, and with every hip or valley.

How To Lay Shingles

Many people wonder how to lay shingles on the roof, but in their majority, home owners pay contractors thousands of dollars for a job that is not difficult to do. If you consider working on this project on your own, here is a set of instructions on how to lay shingles.

Find Out What Size Dumpster You Need For A Roof Tear Off

Tearing off a roof is a work intensive process, and it requires a lot of planning. Milwaukee Dumpster Rental offers roofers and homeowners alike reduced pricing for dumpsters used to dispose of asphalt shingles and roofing materials. We’ll help you figure out what size dumpster you’ll need for your roofing tear off.

How many squares of shingles are needed for a roof?

A square of shingles is the number of shingles needed to cover 100 sq feet of roof area. However, shingles are packaged in a way that they are light enough for the average person to carry around. As a rule of thumb, there are 3 bundles to a square, assuming that you are using three-tab strip shingles.

What is a roof shingle calculator?

The roof shingle calculator is a free estimator that serves a useful purpose during any roof repair or replacement project. Once you enter the basic roof dimensions and enter the type of roof, you will get a very accurate result telling you exactly the amount of shingles that are required to cover your new roof.

Can you use asphalt shingles on a house?

If you are using standard asphalt shingles, your price will be lower than if you are using more expensive slate, metal or tile shingles. For most residential homes, asphalt shingles are the standard, but there are plenty of reasons to avoid using asphalt shingles as your material, such as if you are concerned about the waterproof coverage of your home.

How Hard is it to Shingle a Roof?

Adding shingles onto a roof can be challenging and dangerous. It’s important to wear the appropriate safety gear such as a harness and a line attached to the ridge or staging with safety rails around it to protect yourself from falling.

Should Shingles Overhang the Drip Edge?

Overhanging shingles over the drip edge about a half-inch can help with surface tension. Plan out how you will lay your shingles beforehand, here’s how we recommend you approach your installation.

Installing Roof Shingles in 11 Steps

To start installing shingles, line up aluminum drip edge flush with the edge of the roof and make a pencil line at the top on each end of the house.

What is the best pattern for shingle roof?

For most DIY roofers, the five-inch offset is the most desirable pattern. It offers the most protection per shingle, making it much less likely that runoff will cut through the in-betweens, hiding shingle irregularities, and getting the most bang for your buck.

How many tabs off a second course shingles?

A full tab for your second course shingles. 1.5 tabs off of your third course shingles, 2 tabs off your fourth course shingles. For your fifth course, cut off half of the final tab. Keep your sixth course tabs intact.

Why do shingles curl?

Racking shingles sometimes also may create a condition called "pattern curling," where the shingles curl and blow in the wind, at the places where the racked columns join, because of lifting the end of a shingle to place the next shingle and lifting the end high enough to nail the next shingle underneath each of the overlapping shingles. This curling may lead to water getting under shingles, leaking at the places where racked columns meet.

What to use to protect a roof over a chimney?

Shingle around stacks, vents and chimneys as necessary. Nail pieces of aluminum sheeting over holes that you can stick your finger through to protect roofing over holes from sagging, dimpling, cracking and leaking.

How long do shingles last?

Keeping a solid roofing layer of shingles is an important way to avoid water damage and leaks. Doing it properly will keep you without problems for 20 or 40 years.

What happens if you fire a nail gun through shingles?

If the nail gun is firing too deeply, almost mashing through the shingles, then the nails will soon pull through and come loose. Set the air compressor and gun depth setting lower.

Where to lay starting row on roof?

Lay a starting row at the bottom of the roof along the edge. [1]

How to calculate the area of a roof?

To accurately calculate the area of your roof, you must first determine its slope, or pitch. Roof pitches are described in terms of rise and run. The run is the distance from the outside edge of a perimeter stud wall to the center of the house. The rise is the distance from the top of a stud wall to the peak of the roof.

How many square feet does 1 square of roofing cover?

1square of roofing covers 100 square feet of roof a bundle is 1/3 of a square. Get the square footage of roof and divide it by 100 and it will give the number of squares you need and for every decimal number over 3 buy a bundle to achieve the amount of material. Hope it helps

What is a 12 in 12 pitch?

Thus, a moderate 6 in 12 roof pitch means the roof rises 6 inches for every 12 horizontal inches it runs. A 12 in 12 pitch is a steep, 45-degree angle roof.

Can you put shingles on a flat roof?

You should not put shingles on a flat roof. If you are going to use shingles, build a pitched roof over the mobile home. The dead air space between the metal roof and shingle roof will work as a barrier to dissipate heat. You should use rolled roofing on a flat roof, over lap 1/2 the width of the rolled roofing.

Can a mobile home roof be flat?

A mobile home roof should not be flat. It should have a curved roof. Rolled roofing is best on a mobile home anyway.

How much should starter shingles overhang?

Whether installed at the eave or the rake, the starter shingles should overhang the edge of the roof by ¼ inch to ¾ inch. Typically, the finish shingles are then installed to align with the edge of the starters.

How many square feet does a bundle of shingles cover?

When you buy a bundle of shingles for your roof, typically you look at the coverage as a function of area (for example, three bundles might cover 100 square feet ). Starter shingles are not sold by area covered.

What is the Purpose of a Starter Shingle?

Disclaimer: Please use caution when working on sloped roofs. If you have any concerns or are not trained to work at heights, hire a trained professional.

Where do the nails go?

Although the nails cannot merely be placed randomly, their location on the shingle is less critical than it is for the shingles in the field of the roof. For IKO’s Leading Edge Plus starter shingles, the application instructions call for four nails, one at each end, about an inch from the end of the shingle, and two more spaced equally along the shingle’s length. To ensure the nails don’t risk being exposed or interfere with the shingle sealant system, they should be located about 3 to 4 inches from the exterior edge of the shingle.

Do You Need a Starter Course with Architectural Shingles?

The starter edge will help seal the edges and cover your shingle joints. As it won’t be visible on the finished roof, you don’t need to worry about the look of your starter strip and whether it matches your architectural shingles. You can instead use the same starter strip that you’d use for 3-tab shingles.

Why Do Some Shingles Need Unique Shingle Starters?

However, certain shingle designs, such as IKO’s Armourshake, have intermittent lower exposed tabs. When roofers install those shingles at the eave on the first course, the starter is visible, and, therefore, its color is relevant. In this case, an additional starter shingle course, in matching colors to the finished shingle, is required as a secondary starter layer.

Why use starter shingles along rake edge?

A simpler and very useful purpose for using starter shingles along the rake edge is that it gives the installer a nice straight line to use as a guide when ending each course of the field shingles.