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How to choose the right roofing material

Did you know that the right roofing material for your roof depends upon the pitch, or angle, of the roof? There are other considerations, as well, such as if you're doing a lot of cooking in the building. The below chart and step-by-step info-graphic walks you through the basic process of determining what the right roofing material is for your roof.

Quick links:
Appropriate roofing materials for a roof's pitch chart.
How to choose the right roofing materials text.
How to choose the right roofing materials info-graphic.

What's your roof's pitch?

Is your roof's pitch less or more than 2/12 (9.5º)?

chart showing roofing material options based upon the pitch of a roof

Less than 2/12?

1. If your roof's pitch is less than 2/12, than your options are:

2. Cooking involved?

If you have a flat roof; is a lot of cooking involved, such as at a hospital, restaurant, etc.?

If so, then you should choose PVC since it is resistant to animal fat and grease, and resistant to fire.

3. Money a concern?

If there isn't a lot of cooking involved, is money a concern?

If money is not a concern, choose TPO as it's less expensive than PVC yet still a great product.

If money is a concern, choose EPDM or modified bitumen since these are the least expensive options for a flat roof. It is interesting to note that EPDM, also known as a 'rubber roof', is also the longest lasting.


Learn more about commercial roofing material longevity, cost, etc. in our Guide to Commercial Roofing.

Greater than 2/12?

A. If your roof's pitch is greater than 2/12, your options are:

(If your roof's pitch is greater than 3/12, tile is also an option.)

B. Snow?

Do you get a lot of snow? For example, more than a foot in one snow storm.

If you do, you should consider a metal roof as it sheds heavy snowfall quickly.

C. Looks, Longevity, or Cost?

If you don't get a lot of snow at once, do you want your roof to look good, last a long time, or cost the least?

Look Good: If you want your roof to stand out, consider a tile roof for its unique appearance.

Longevity: If you want your roof to potentially last a long time, again, consider tile since it is among the longest lasting roofing material.

Cost Less: If you want the least expensive roofing material, stick with asphalt shingles.


Learn more about residential roofing material longevity, cost, etc. in our Guide to Residential Roofing.

Summary of roof pitch and the right roofing material for it:

Roof pitch: material option(s)

.25/12 to 2/12: EPDM, TPO, PVC, Mod-Bit
3/12 to 20/12: metal
2.5/12 to 19/12: tile. clay or cement
2.5/12 to 20/12: asphalt shingles

An info-graphic showing how to choose the right roofing material for your roof depending up its pitch
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