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• When is it necessary to tear off a roof, roof sheathing, or rafters to deal with attic mold?
• Where to look for mold in a building attic

This document gives advice on how to find and deal with mold in building attics and roof cavities. This is a chapter of "How to Look for Mold" which describes how to find mold and test for mold in buildings, including how and where to collect mold samples using adhesive tape - an easy, inexpensive, low-tech but very effective mold testing method. This procedure helps identify the presence of or locate the probable sources of mold reservoirs in buildings, and helps decide which of these need more invasive, exhaustive inspection and testing. © Copyright 2008 Daniel Friedman, All Rights Reserved. Information Accuracy & Bias Pledge is at below-left. Use links at the left of each page to navigate this document or to view other topics at this website. Green links show where you are in our document or website.

ATTIC MOLD When to Tear Off the Roof

How does one determine if the roof should come off

Toxic attic mold: The photo at the left was identified as a toxic mold that probably should be removed, although the ease of movement Generally, tearing off a roof and roof sheathing and perhaps roof framing, to remove mold would not be sensible nor cost-justified. Mold growth, provided it is not just cosmetic mold which can simply be left alone, (see Cosmetic Mold) can be cleaned from wood surfaces by blasting, scrubbing, or even simple surface wiping, depending on the surface accessibilty and smoothness. (Lots of protruding nails through a roof deck preclude wiping or scrubbing). (Sanding surfaces is usually unnecessary and inappropriate).

Any stains that remain on wood surfaces after cleaning are harmless (usually sterile hyphae remaining below the wood surface).

At the time of cleaning off mold, it is essential that the cause of mold growth be corrected as well, or mold growth will probably return, regardless of whether any stained surfaces were left from the prior cleaning. Use of fungicidal encapsulants may reduce but not eliminate the risk of future mold growth, primarily, or more lastingly because such encapsulants reduce the future uptake of moisture in the wood materials. (Fungicidal chemicals themselves can be expected to break down over time and should not be relied on as "mold proofing").

When the roof sheathing is rotted or damaged, or when other structural repairs are needed, a tear-off is unavoidable.

When attic surfaces or insulation contain a large reservoir of toxic or allergenic mold, AND if the area were inaccessible, say because the space is too small to enter, then it may be necessary to remove some portion of roofing to give access for remediation, particularly if there is evidence of transmission of problem mold from that space into the living area.

Use links just below or at the left of each page to navigate this document or to view other topics at this website. Green links show where you are in our document or website.

ATTIC MOLD
  IS ATTIC MOLD A PROBLEM ?
  RISK OF TOXIC ATTIC MOLD
  WHERE TO LOOK FOR ATTIC MOLD
  WHAT ATTIC MOLD LOOKS LIKE
  BEFORE REMOVING ATTIC MOLD
  ATTIC MOLD ROOF TEAROFF
  ATTIC MOLD ENCAPSULANTS
The Mold Information Center - What to Do About Mold in Buildings

Use links at the left of each page to navigate this document or to view other topics at this website. Green links show where you are in our document or website.

More Information on Finding, Recognizing, and Proper Testing for Mold, More on Building Diagnostic Inspections and Repairs

Mold and Allergen Recognition and Identification - Not All "Black Mold" is Harmful; Some Suspect Stuff is Not Mold

• How to Find and Test For Mold in Buildings - Looking for Mold - A 'how to' photo and text primer on finding and testing for mold in buildings
• Recognizing Mold: What mold looks like mold identification photos to help identify mold - choosing what to sample in buildings
• Recognizing Allergens: What various indoor allergens look like - identification photos to help identify pollen, dust mites, animal dander, toxic or allergenic mold - Common Mold and other Allergens, Irritants, Remedies & Advice
• Stuff that is not mold but is often mistaken for it - things you may not want to test. Also, not all "black mold" is toxic - here are examples of harmless black mold.
• Mold Action Guide: an easy step by step outline of what to do about mold
• How to find mold without hiring anyone, for do-it-yourself'ers
• Associations: Sick House, Sick Building, SBS - Air Quality, Government, Private Associations and Information Resources
• Mold Test Kits - How to Collect and Send Your Own Mold Sample to our mold testing lab
• How to find a mold inspector or test consultant: Directory of IAQ,Sick Building, Mold Allergen Testing, Building Investigation Service Providers
• Meruliporia: the house eating fungus or "poria"
• Mold Investigation Tips for Home Inspectors how to find mold, where to look, what is likely to be important. Advice to building inspectors intending to inspect or test for toxic or problematic mold indoors, mold inspection methods, and mold test methods which are valid or invalid
• Mold Risk Levels in Buildings Based on Visual Inspection - simple visual clues help decide on action
• Mold in Fiberglass Insulation© 2005 comments about a field study in process, & more about health hazards from fiberglass insulation - DJF
• Frequently Asked Questions About Mold -- check this FAQ list & IAQ Site Map to see if you can find a quick answer to your mold concern
• When to hire a professional to inspect for toxic mold or other allergens
• Contact Us to arrange mold/IAQ building on site inspection and testing.

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The Mold Information Center: What to Do About Mold in Buildings, When and How to Inspect for Mold, Clean Up Mold, or Avoid Mold Problems

Home Inspection Construction Consulting Services & advice for home buyers

Use this simple, economical mold test kit by following our instructions on how to collect and mail mold samples to our lab

Environmental Inspection, Testing, & Diagnosis On-Site IAQ, Gas, Air Testing, Mold Investigation, Sick Building Diagnosis, Lab Services, & Remediation Plan Preparation - indoor air quality testing, problem source determination, supporting lab work, written remediation plan addressing removal of environmental and other hazards and prevention of their recurrence.

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