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Sooner or later, every roof needs to be replaced, usually due to the long-term effects of weathering. If a residential roof is more than 20 years old, it is a prime candidate for re-roofing.

To determine if you need a new roof:

On the ground, walk around your home with binoculars and inspect your roof for cracked, curled or missing shingles, as well as any excessive loss of the protective mineral granules. DO NOT CLIMB ON THE ROOF; walking on the roof is dangerous and can damage your roof.

In your attic, take a flashlight and look at the underside of the roof deck and rafters for any stains or wet spots indicating water leaks.

Asphalt shingles can often be applied directly over existing roofs without the necessity of tearing off the old roof. However, new shingles cannot be properly applied over hard or brittle materials, uneven surfaces for nailing or roof decks with warped, rotted or unsound support that should first be replaced or repaired.

Some local ordinances forbid re-roofing over two or more layers of shingles. If a home already has been shingled several times, it is important to first determine if the roof deck can support another layer of shingles before undertaking any re-roofing project.

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Q: How do you know when to replace a roof shingles?
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Related questions

How easy is it to replace roof shingles on a budget?

We need to tear out a spot on our roof. How difficult is it to remove and replace roof shingles on our own?


Where is the best place to buy roof shingles?

The shingles on my roof are beginning to wear out. Do you know where the best place to buy roof shigles is?


How do you use the word shingles in a sentence?

My dad had to replace a shingle on our roof after the storm blew it off.


Is it worth replacing only a few shingles of my roof?

Yes, you can replace a few shingles on your roof without having the replace the whole thing. To do this, go to your local home improvement store like lowes or home depot.


If you loose roof shingles will your homeowners policy cover the cost to replace?

A call to your insurance company describing why the shingles were lost will answer your question.


How much does it cost to replace a shingled roof with a contractor?

$4,000 to $8,000 depending on contractor, size of roof, and price of shingles.


Does it cost less to just add a layer of shingles?

If the roof is less than 24 years old,you can re -shingle over the old shingles. But if the roof is over 35 years old it is best to remove the exiting shingles ans replace with new


If I have a leak in one part of my roof, should i replace the whole thing?

This depends on the age of your roof. If your roof is relatively new you may just need to replace a few shingles. If however, your roof is near it's warranty limit you should consider replacing the whole roof.


What are to steps to a roof leak repair?

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Asphalt Shingles?

form_title= Asphalt Shingles form_header= Put a new roof on your home with asphalt shingles. What color shingles do you need? *= _ [50] What size shingles do you need?*= _ [50] Are you replacing a whole roof?*= () Yes () No How old is the roof?*= _ [50]


Cost to replace a roof?

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What are tiles nailed to the roof for protection called?

roof shingles