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Causes & Types of Asphalt Shingle Roof Failures RoofAPedia © Enter your search terms Submit search form   Search This Website - InspectAPedia.com

• How to identify types of asphalt shingle roofing failures/defects
• Causes & photographs of asphalt roof shingle cracking
• Types & photographs of organic felt asphalt roof shingle failures
• Shingle cupping, curling, cracking, fishmouthing, granule loss
• Asphalt roof shingle blisters and splices, photographs
• Black stains on roofing, extractive bleeding, moss, lichens on shingles
• Storm damaged shingles, wind blow-off, hail damage, ice chopping damage
• Storage, Poor Workmanship, Other roofing defects

This website tells readers how to identify & explain the most-common asphalt roof shingle failures and how to obtain asphalt roofing shingle failure claims assistance. Common asphalt shingle failure factors include improper storage and handling of the asphalt shingles before installation, improper nailing, improper flashing (which pertains to any roofing material), and defective asphalt shingle product material leading to thermal splitting, cracking, blistering, staining, and in some cases curling or cupping shingles. Storm damage from wind and hail occur and need to be distinguished from defective asphalt shingle product or asphalt shingle installation errors. Cupping and curling due to age can be distinguished from "fishmouthing" (shown in the photo above) caused by inadequate attic venting and building moisture. Readers are also invited contribute roof failure information to the web author for research purposes. web author for research purposes. © Copyright 2008 Daniel Friedman, All Rights Reserved. Information Accuracy & Bias Pledge is at below-left. Use the links at page left to navigate this document or to go to Other Website Topics. Green links at left show where you are in our document & website.

Articles detailing types of asphalt shingle roof failures and other asphalt roofing defects

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Technical Reviewers

Particular thanks are due to experts and also consumers who read these articles and suggest corrections, changes, and additions to the material. Content suggestions, technical corrections and content critique are invited for any of the content at our website.

• Mark Cramer Inspection Services Mark Cramer, Tampa Florida, Mr. Cramer is a past president of ASHI, the American Society of Home Inspectors and is a Florida home inspector and home inspection educator. (727) 595-4211 mark@BestTampaInspector.com
• Hankey and Brown home inspectors, Eden Prairie, MN, technical review by Roger Hankey, prior chairman, Standards Committee, American Society of Home Inspectors - ASHI. 952 829-0044 - hankeyandbrown.com
• Arlene Puentes, a licensed home inspector, educator, and building failures researcher in Kingston, NY.
• Daniel Friedman - principal author
• Technical reviewers are invited to comment or ask questions - contact us

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