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Release Jan. 27, 2014
Top 10 Causes of New Home Built-In Toxic Mold, Warns Industrial Hygienist
ďEven before a new home buyer can move in, many new homes are seriously and
dangerously infested with toxic mold growth that has been built into the
wood timbers, plywood, osb (oriented strand board), particle or chipboard,
and other construction materials, and then subsequently hidden from view by
exterior siding, insulation, and drywall,Ē warns Phillip Fry, Professional
Industrial Hygienist and Certified Environmental Hygienist, and webmaster
since 1999 of the mold information website
Mold consultant Fry reports that one or more of the following top 10
construction problems can cause significant mold growth in a new home or
commercial building under construction:
1. Mold growth at the lumber mill or in transit from the mill because of no
protection of the timbers or building materials against rain or high
humidity that enables the mold to begin eating the construction materials.
2. Mold growth at the lumber yard because of a similar lack of protection
against rain and high humidity. Many lumber yards often store construction
timbers unprotected in the outdoors.
3. Mold growth at the home construction site because of a similar lack of
protection against rain and high humidity. In addition, timbers and other
construction materials are often left setting directly on the ground, from
which moisture can wick upwards into the materials from the water-containing
4. Untrained construction workers donít recognize or donít care about
visible mold growth on the timbers and construction materials as they build
the home. Instead of rejecting moldy timbers, the workers use the
contaminated timbers with no knowledge of, or concern about, the mold
problems that they are building into the home or commercial building.
5. Owners, supervisors, and managers of home builders and commercial
building contractors donít inspect the building projects during construction
for mold growth on the wood timbers and other building materials.
6. Home builders and commercial contractors donít hire professional mold
inspection and testing of homes and commercial buildings either during the
construction phase or upon completion.
7. Wood timbers are not pre-treated before or during construction with mold
and termite preventative fungicides such as non-toxic, EPA-registered
Tim-Bor. Read the material safety data sheet and usage instructions for
One of the best mold preventative strategies is to mix one pound of Tim-Bor
per gallon of white, latex enamel paint, and then paint all surfaces and
edges of each timber and plywood or osb sheet to adhere to Tim-Bor directly
to the wood and to help keep the timbers and construction material dry in
the event of a future roof leak or plumbing leak.
8. Building defects allow water intrusion are common in new homes and
commercial buildings. For example, construction workers often improperly
install sewer drain pipes, water supply pipes, and air conditioning
condensation drain lines, with the unfortunate result that such plumbing
defects enable water to leak into the structure. There are hundreds of
possible building defects in new structures. Speed of construction and not
the quality of construction is often the emphasis and priority of home
builders, employees, and subcontractors.
9. Home and commercial building buyers fail to hire a mold-experienced
industrial hygienist, environmental hygienists, and certified mold inspector
to inspect carefully the home during construction, or prior to closing the
purchase of the home or commercial building. Find a qualified inspector in
the worldwide mold inspector directory
10. New home buyers fail to do on-going maintenance checkups of their
structures to detect water intrusion and mold growth problems before the
problems become big and expensive to repair.
For questions or help with new home or commercial building mold inspection,
testing, prevention, and mold removal anywhere in the USA or Ontario
Province, Canada, or most nations in southeast Asia, contact mold expert
Phillip Fry by emailing
firstname.lastname@example.org, or phoning toll-free 1-866-300-1616, or
Phillipís cell phone 1-480-310-7970, or visiting