Condo Media - March 2023 - 32

The Region MAINE
One of the primary issues in building
science is the study of how moisture
damages buildings and reduces the quality
of life of its inhabitants. Moisture
penetration can cause mold, rot, and
interior damage. Serious moisture
problems and their cure are often hard
to solve as the physics of air flow, dew
points, and vapor transmission can be
complicated even with invasive inspections
and the introduction of modern
tools such as infrared scanning and
moisture meters. As these more difficult
problems will need a longer article to
fully explore, let us focus instead on the
more common problems faced by homeowner
association and condo boards.
LEAKING FOUNDATIONS
Foundations are usually constructed
with poured concrete or concrete block.
Modern foundations are protected with
a waterproof coating on the exterior
surface and a foundation drain around
the foundation perimeter at the base
of the footing, often with an under-slab
drainage system with an associated sump
pump. With these operating properly,
basements should be dry. If a modern
foundation (less than 30 years old) experiences
water infiltration, something
is not working right and the source is
probably surface water. If someone tells
you it is due to rising ground water, be
skeptical. Keep in mind the water table
is the depth in the earth that is permanently
saturated with water. According
to the building code, modern foundation
basement slabs are built above the water
table. If the water table is too high, then
the building will not have a basement but
rather it will be built on a slab on grade.
If you have any question about where the
water table is, the municipal code officer
or a local foundation excavating contractor
can help.
Moisture
The Root of All Maintenance
[By Jack Carr, P.E., LEED-AP]
32 CONDOMEDIA March 2023
TWO-STEP APPROACH
If your foundation is leaking, you need
a two-step action plan. First, fix the wall
problem allowing water to infiltrate into
the basement, and second, minimize
surface water reaching the exterior of
your foundation wall.

Condo Media - March 2023

Table of Contents for the Digital Edition of Condo Media - March 2023

Contents
Condo Media - March 2023 - Cover1
Condo Media - March 2023 - Cover2
Condo Media - March 2023 - Contents
Condo Media - March 2023 - 2
Condo Media - March 2023 - 3
Condo Media - March 2023 - 4
Condo Media - March 2023 - 5
Condo Media - March 2023 - 6
Condo Media - March 2023 - 7
Condo Media - March 2023 - 8
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Condo Media - March 2023 - 33
Condo Media - March 2023 - 34
Condo Media - March 2023 - 35
Condo Media - March 2023 - 36
Condo Media - March 2023 - 37
Condo Media - March 2023 - 38
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Condo Media - March 2023 - 40
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Condo Media - March 2023 - 48
Condo Media - March 2023 - Cover3
Condo Media - March 2023 - Cover4
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