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CCHRC Research and Testing Facility (RTF)
Remote Wall System Monitoring
The main office walls are constructed using the Exterior
Membrane Outside-insulation Technique (REMOTE
). This system is a modification of a Canadianvapproach that sealed
the entire building envelope with a self-adhering membrane and layers of
rigid insulation.
In REMOTE, just the
exterior walls are built in this manner; ceilings and roofs are constructed with more
conventional cold climate building techniques. The REMOTE
wall is constructed with the vapor and weather barrier membrane on the
outside of the structural wall members. On top of this membrane and to the exterior,
layers of rigid insulation are applied.
Typical construction in cold climates places
the vapor barrier on the inside of the wall with insulation filling the wall cavity.
There is a tendency for vapor to condense inside this kind of wall and for the wall
cavity to have difficulty drying. This condition can result in a number of problems
including mold growth and rot. The REMOTE
wall eliminates trapped moisture and condensing of vapor in the wall. The wall also has
the ability to dry in the event of moisture intrusion or condensing.
We are studying the
use of two different types of interior fiberglass batt insulation by Johns Manville are
being compared. The goal is to study the wall moisture content and temperature over
time to see how each performs. Moisture and temperature sensors have been placed in a
line through the wall at each change in material to monitor the movement of heat and
vapor.
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