Tornadoes: Roof - Choosing the Right Covering

Material provided by Federal Alliance for Safe Homes http://www.flash.org/

 

Many tornado prone areas are also prone to hail. To protect roof coverings from both wind and hail damage, look for wind and impact rated roof coverings. For shingles, wind ratings are based on standards published by ASTM International (formerly known as the American Society for Testing and Materials) and resistance to impact is based on an Underwriters Laboratory test, UL 2218.  For the highest level of wind rated shingle, look for shingles that are rated to ASTM D3161 Class F or ASTM D7158 Class H. For the highest level of impact protection, look for shingles that meet UL 2218 Class 4.

Asphalt Shingles

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Recommended installation

 

Metal

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Cons:

Recommended Installation:

 

Slate

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Recommend Installation:

 

Tile

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Recommend Installation:

 

Wood Shingles and Shakes

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Tips

Keep these points in mind when you have your roof covering repaired or replaced:

 

Benefits of Using This Mitigation Strategy

Helps to prevent damage to a structure and its contents

Helps to prevent injuries to occupants 

Estimated Costs

The cost of re-roofing varies based on the roof pitch, damage to underlayment, quantity of roofs on the home, and location of the home. Typically, a low pitch, single story home with asphalt shingles will cost around $40 - $80 per square (100 sq. ft.). This estimate will increase to roughly $75-$100 to remove old shingles and install new shingles. Damaged underlayment will cost more to repair, roughly $50 per sheet. Expect additional charges for flashing piping and chimneys.  Any variables including, steep pitch, roofing material, second story roof, will also increase costs. .1

 

1."What Is the Average Cost per Square Foot to Install Roof?" WikiAnswers. Answers. Web. 31 May 2012. http://wiki.answers.com/Q/What_is_the_average_cost_per_square_foot_to_install_roof.