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The 5 Major Factors Affecting Roofing Cost

Updated on June 28, 2017
House roof.
House roof.


The roof may just be one part of the house but it is a very important part. It prevents us from being exposed to outside elements, direct sunlight, rain, and snow.

It serves as covering and security, protecting everything and everyone inside the house, which is why it is only but practical and necessary to invest in sturdy and durable roofing that can withstand even the harshest of weathers.

Making a good investment doesn’t necessarily mean having to spend so much, which is why a house owner should also be aware of the things that would affect the expense to minimize unnecessary roofing costs.

Here are the five major factors that usually affect the roofing cost, which can help in making that decision on what style and type of roofing should an owner consider having.

Roof Size

The size of the roof is the biggest factor in affecting the roof cost. This would determine how long it would take and how much is the material needed to complete the roofing job.

“Roofing square” is usually how most roofers charge. 1 roofing square is equal to 100 square feet. It can either be 10 feet by 10 feet or 5 feet by 20 feet or 2 feet by 50 feet. It doesn’t matter how you arrive at it as long as it totals to 100 square feet, that’s considered 1 roofing square.

So if the size of the roof totals to 2500 square feet, divide that by 100 and that would be equal to 25 roofing squares.

Roof Pitch

The roof pitch or slope is the most common way of describing a roof’s basic quality, which is steepness. This is very important as this will be a determining factor in choosing the right materials, a number of materials needed for installation, and the labor required to complete the roofing job properly.

Roof pitch has a lot to do with safety issues during construction or installation. The steeper the roof is, those that are more difficult to access and would require staging or scaffolding, the higher the cost would be as this would require extra effort and time.

Roof Materials

This is also one significant factor in computing roof costs. The prices vary depending on the type of material used. Asphalt is the most economic choice or option especially when you are on a budget while on the other hand; metal and slate are the most costly.

When choosing materials, one should also consider their durability. If you choose a material that would not stand in harsh weathers and would cause you to repair and patch again and again, you might find yourself spending more on repairs.

Whereas, if you choose those that are more expensive yet can last 40-50 years with minimal to no repairs, although you have shelled out a bit more on the one-time installation, you would have peace of mind in the long term since you don’t need to worry about it deteriorating so easily even if subject to unforgiving weather conditions. This makes them a worthy investment.

One should also remember that the structure of the roof would also be a factor in determining the type of material that should be used. The steeper slopes may require a different surface than a flat roof or that of a low slope.

For example, heavy materials such as slate and tiles cannot be used on a steep pitch because it is would be insufficient to carry the load. One should consult or ask his contractor for advice as to what is the best material to use depending on the style, the weather and climate conditions on their house location, and all the other things to be considered to be able to make an informed decision.

Roof Access

This is a critical component in the general costing of the roofing job. Can the truck/dumpster or vehicle carrying the materials be parked near the roof? Are there elements that could possibly cause interference with the job such as tree branches or power lines?

Difficult access would mean manually moving the materials or would require additional equipment to also ensure the security of the workers while easy access would mean less time and equipment necessary to complete the job.


The 2 types of warranty for roofing are Material Warranty and the Labor or Workmanship Warranty. You can choose from one of the two or you can choose both.

Most often, the Labor Warranty is offered by the contractor as an add-on, not always included in the initial quoting of the cost, but it’s still the owner’s discretion whether they would choose to be covered by this or not.

One should still make sure to read the fine print and know the details of these warranties, both material, and labor, so they would be in the know of what is covered and what is not.


It is always best to seek advice from those who are experienced in the field, such as roofing contractors, to be able to make an informed decision. How to look for a contractor or estimate the roof cost in your area?

Use social media platforms such as Facebook and Twitter and do crowdsourcing by asking or posting specific questions like “How much does a roof cost in Downriver, Michigan?” or “Crowdsourcing: Need suggestions on which roofing contractor to hire”.

A house with a good, sturdy roof provides safety and peace of mind for the dwellers. Invest on a good roof and be fully informed to make sure your choice is a worthy investment.


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