Residential Asphalt Shingles

Residential roofing is a core business for Donan Engineering. Our investigators are all licensed Professional Engineers and Registered Roofing Consultants, not just contractors with limited training.  Because we are not bidding to replace or repair a roof, we can offer unbiased, third-party, independent opinions as to the cause of many roofing issues:

• Wind
• Hailstone 
• Storm Damage 
• Other Causes of Damage or Failure 
• Wear & Tear/Aging