The leaky building syndrome has resulted in an
epidemic of problems for all the major players in the construction
industry: owners, developers, contractors, architects, engineers,
subcontractors, building envelope specialists, municipalities,
manufacturers and suppliers of materials. It seems that no one is
immune from the plague of the leaky building.
Water infiltration of both low-rise wood-frame and
high-rise concrete structures has caused this plague. However, there
are numerous underlying problems, and the development of mould and
mould contamination in both low-rise wood-frame and high-rise
concrete structures are some of the significant underlying
problems.
Mould contamination is not only a disruptive and
expensive problem to remediate; it can also be the subject of
litigation, with settlement costs in some cases reaching
millions.
Generally, Canada is less litigious than our
southern neighbours, where some of the more substantial mould
contamination cases have been tried. However, there are several
cases pending in Canada and inevitably a judgment here will quickly
focus our attention on the topic. Also, mould related insurance
claims could very well increase as public awareness is increased by
reports of multimillion dollar lawsuits against insurance companies
and increased media attention to the possible risks and dangers of
mould.
In a recent article published by The Defence
Research Institute, Michael A. Hamilton, a lawyer with the law firm
Cozen and O'Connor, in Philadelphia, Pennsylvania commented
that:
Any litigator with his or her hand on the pulse of
litigation trends has noticed a surge in mold contamination claims
over the past several years. Today, the frequency of complaints by
building occupants has resulted in a rapid rise in mold litigation
centering on indoor air quality. Various media reports have informed
people on the issue and danger of toxic mold. Furthermore, the
Internet is also a significant source of information regarding mold,
mold contamination and mold claims and lawsuits.
At this stage it seems that the State of Texas has
been the hardest hit by mould related insurance claims and
litigation. In a recent case in Texas, a jury awarded homeowners $32
million after finding that a subsidiary of Farmers Insurance Group
mishandled the family's homeowner's claim for mould related damage.
This case involved a 22-room, 11,500 square foot house in which the
homeowners experienced a plumbing leak in a bathroom in 1998. The
leak was not properly fixed and several months later hardwood floors
in the house started buckling and the homeowners filed a claim with
their insurance company.
The Court heard evidence that the insurer was
warned that dangerous moulds could grow in the subfloor and that the
flooring needed to be pulled out to avoid such a problem. The
insurer did not follow the advice and disregarded the warning. Some
months later the family members became ill. Subsequent testing
revealed that the house was contaminated with a hazardous mould,
which eventually rendered the house uninhabitable. The failure of
the insurer to act promptly and properly resulted in a punitive
award of $12 million.
In Canada, toxic mould cases are relatively new,
but class actions and individual lawsuits are likely to become more
common with the closure of the Alberta Court of Appeal building in
Calgary and other public buildings throughout the country. Also, in
British Columbia, mould contamination has been raised in some of the
leaky condo cases and, in New Brunswick a federal civil servant
commenced an action against the Ministry of Natural Resources for
toxic mould exposure at the Maritime Forestry Complex.
There is very little case law dealing with mould
contamination available in Canada. The first significant decision
dealing with mould was in 1989 when a tribunal of the Quebec
government Bureau de Revision de la Commission de la Sante et de la
Securite du Travail found that the significant growth of the
toxigenic mould Stachybotrys Chartarum in the workplace was a
violation of Quebec health and safety legislation. The tribunal
heard testimony that the presence of mycotoxins in the spores of
this fungus was irrelevant to health, but they were not
persuaded.
Similarly, Minnesota's Courts have ruled against
insurance companies attempting to exclude coverage for mould,
mycotoxin and allergen contamination under the "pollution exclusion"
of their insurance policies.
In 1995 the Reliance Insurance Company was ordered
to pay the owners of Polk County Courthouse $40 million to remedy
toxic mould growing in a building. Personal injury claims were
settled for approximately $10 million. The Polk County Florida
courthouse had a number of construction and design defects, such
that massive amounts of toxigenic moulds, particularly
Aspergillus Versicolor grew in the building.
The Martin County Florida courthouse had similar
problems. Design problems with the building envelope and the HVAC
system resulted in massive contamination by Aspergillus
Versicolor, Penicillium species and some Stachybotrys
Chartarum. Studies of the worker population revealed the
presence of emphysema-like symptoms coupled with increasingly lower
single-breath carbon monoxide diffusing capacity. Measurements of
fungal toxins and extracts of mould-contaminated materials were
shown to be toxic. The medical investigation indicated the presence
of a toxin-induced disease as opposed to an allergic disease. This
was contested and the defendant claimed theories including the
effects of the building being several miles from a sewage treatment
facility. The jury awarded the costs of renovating the building,
which exceeded the cost of the original structure.
In an even more spectacular judgment a $400 million
class action suit was settled between The New Museum of Contemporary
Art in New York and its employees. Stachybotrys Chartarum was
found growing on cardboard, paper and building materials in a
subbasement. Several of the workers were highly exposed and have
apparently suffered exposure-dependent immune dysfunction.
The presence of mould in a building may constitute
a health hazard to the occupants because mould may cause adverse
health effects, ranging from infections, hypersensitivity
pneumonitis, allergies, toxic syndromes and perhaps even death.
Accordingly, developers, contractors, owners and
other persons connected with mould contaminated buildings should be
mindful of their potential legal liabilities for the health and
safety of the occupants of the buildings. They should also be
concerned with possible property damages suffered by the occupants.
In addition to being a potential health threat, moulds also
facilitate the biological decaying in wood and pose a significant
threat to the structural integrity of wood-framed buildings.
If mould litigation proceeds, it will most likely
be expensive. Plaintiffs and defendants will require the assistance
of experts like engineers, physicians, indoor air quality experts,
occupational health specialists and microbiologists.
While mould related litigation does not get as much
attention in Canada as it does south of the border, it is developing
and will likely continue to develop based on experience in the
United States.
Very important in Canada, is the $2 billion class
action lawsuit commenced against the Dufferin Peel Catholic School
Board in Ontario. It is alleged in that action that children have
been adversely affected by mould exposure in school buildings,
particularly portable classrooms and other temporary facilities.
Another action commenced in Ontario involved a tenant in an
apartment building, which was alleged, to have been contaminated
with mould, causing health problems. Class action certification was
denied in both of these proceedings.
It should also be remembered that the construction
or renovation process exacerbates toxic mould risks, where moulds
released by construction workers can infect immuno-suppressed
patients. Claims arising from alleged deficiencies in the
remediation of buildings may likely become the future focus of
lawsuits relating to mould. In the event that restoration work is
not carried out properly, contractors will be exposing themselves to
legal proceedings from persons seeking compensation for property
damaged by mould and damages for personal injury.
As restoration contractors may be in the front
lines of liability, prudent contractors will want to have a
sufficient level of knowledge of mould related issues to ensure that
they remedy the situation and not exacerbate it. Liability in any
negligence case requires that the conduct of the contractor be
measured against some reasonable standard. Contractors should
therefore investigate and be familiar with any guidelines or
standards, which may exist for mould remediation. Those who work in
the industry will want to ensure that they are properly trained and
qualified to undertake the work and that they stay up to date with
what is happening as guidelines are developed and improved and as
more becomes known about the problem.
Owners and engineers will want to make certain that
any restoration contractor who is engaged is qualified, by its
training and experience, to do the remediation work. Insurers and
adjusters should also become familiar with the developing industry
guidelines. At present only a few guidelines exist, but these are
becoming more comprehensive.
It is clear that in the light of, not only a
potential health hazard to occupants of buildings, but also the very
real threat of a substantial lawsuit, building owners and managers
need to do all they can to mitigate their risks. The best defence
against any form of health and safety litigation is due
diligence.
It is foreseeable that the Canadian legislators may
also be called upon to require heightened due diligence on the part
of landowners and developers. In California, the proposed Toxic
Mould Protection Act will require disclosure and remediation of
toxic moulds by anyone who sells or rents property, and any public
entity that owns, leases or operates a building. Regulatory control
of moulds has begun to a limited degree in Canada, with Health
Canada issuing a Material Safety Data Sheet for Aspergillus as an
infectious agent.
The current understanding of toxic moulds and
associated health risks is in its early stages in North America. As
litigation on both sides of the border progresses, it will be up to
the Courts and legislators to assess the long-term effects and
prescribe remedies for those affected.
Hannelie Stockenstrom