InspectAPedia®

Typical wear due to age on an organic base asphalt shingle roof. Causes of Wear or Leaks in Asphalt Shingle Roofs

  • ASPHALT SHINGLE LIFE / WEAR FACTORS - CONTENTS: Causes of asphalt roof shingle wear and failure. Causes of leaks in asphalt shingle roofs. What affects the life expectancy of an asphalt shingle roof? What building factors also affect roof shingle life? What is the cost-effectiveness of asphalt roof shingles versus other roof coverings?
  • POST a QUESTION or READ FAQs about causes of wear or leaks in asphalt shingle roofs
  • REFERENCES
InspectAPedia tolerates no conflicts of interest. We have no relationship with advertisers, products, or services discussed at this website.

This document describes most of the factors which determine the life expectancy of an asphalt shingle roof - "roofing shingle wear factors". These wear factors affect most asphalt roof shingle types, whether organic felt based or fiberglass fabric based, and whether the shingle type is "cutout" or three-tab, strip-type, or a laminate-type roof shingle.



Green links show where you are. © Copyright 2017 InspectApedia.com, All Rights Reserved.

SHINGLE LIFE / WEAR FACTORS for Asphalt Shingle Roofing Products

Fishmouthed roof shingle fail(C) Daniel FriedmanThis article is part of our series on inspecting, diagnosing, installing and repairing Asphalt Roof Shingles which tells readers how to identify & explain the most-common asphalt roof shingle failures.

[Click to enlarge any photo or image]

By listing common causes of asphalt roof shingle failures and how to recognize them, building owners and roofing contractors may also be able to reduce the occurrence of asphalt roof shingle storage, handling, and installation errors that affect roof life. Readers are also invited contribute roof failure information to the web author for research purposes.

While the historical cost-performance of this product has been good in most cases, durability issues and wear-out or material failures occur earlier than expected in some situations. The expected life of a roof covering depends on many variables including:

Improperly stored asphalt shingle absorbs water (C) Daniel Friedman

Building factors affecting asphalt shingle roof life:

Cost Effectiveness of Asphalt Shingles:

Other roofing materials also are affected by thermal loading. Cash calculates that the life cycle cost of steep-slope roofing shows that asphalt shingles still provide the most economical performance for the home owner! ("Asphalt Shingle Performance," -- Carl Cash.)

Given these variables, it is not likely that a "20-year" shingle will expire exactly twenty years after it is installed. When a roof lasts longer than its promised life no one complains. If a roof needs replacement substantially sooner than its anticipated life, consumers are understandably concerned.

Asphalt Roof Shingle Wear Factors Research Citations

...


Continue reading at ASPHALT SHINGLE PROPERTIES or select a topic from closely-related articles below, or see our complete INDEX to RELATED ARTICLES below.

Suggested citation for this web page

ASPHALT SHINGLE LIFE / WEAR FACTORS at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice.

INDEX to RELATED ARTICLES: ARTICLE INDEX to BUILDING ROOFING

Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia


...

Frequently Asked Questions (FAQs)

Click to Show or Hide FAQs

Ask a Question or Search InspectApedia

Use the "Click to Show or Hide FAQs" link just above to see recently-posted questions, comments, replies, try the search box just below, or if you prefer, post a question or comment in the Comments box below and we will respond promptly.

Search the InspectApedia website

Comment Box is loading comments...

Technical Reviewers & References

Click to Show or Hide Citations & References

Publisher's Google+ Page by Daniel Friedman