ENERGY EFFICIENT HOUSING - According to research,
prior to the middle 1970's residential cavity wall construction
was un-insulated, subsequently allowing airflow in the space
between the interior and exterior walls. This manner of
construction enabled drying of the wall cavity.
Roofing and wall system materials are continually being
improved in order to create better quality, longer lasting
products. These improved products are now protecting our
newly specified, heavily insulated energy conservation wall
construction. However, when these sealed and insulated wall
systems get wet, drying is unable to occur without the exchange
of air that was inherent in the older construction methods.
- Residential home construction products and installation
methods have evolved through the years. Engineered trusses,
ridge vents, manufactured pipe boot flashings, plumbing
fixtures, re-designed thermal windows and doors, building
wraps etc., have resolved many of the old recurring problems.
Unfortunately flashing components and procedures have not
evolved as quickly, and are presently under development
in order to properly protect the junctures between the roofing
and wall systems.
must now come of age to achieve the required effective longevity
necessary to avoid premature failures.
is not energy efficient if it does not last!
The story continues