Title: THERMAL BRIDGES IN WALL CONSTRUCTION - NCMA
Headings: THERMAL BRIDGES IN WALL CONSTRUCTION
THERMAL BRIDGES IN WALL CONSTRUCTION
INTRODUCTION
THERMAL BRIDGING
Causes
Effects
Requirements
SINGLE WYTHE MASONRY WALL
CONCRETE MASONRY CAVITY WALL
MASONRY VENEER WITH STEEL STUD BACKUP
SLAB EDGE & PERIMETER BEAM
MASONRY PARAPET
References

Content: air will flow through the same points that allow moisture entry; and water leakage can lead, in some cases, to degradation of air barriers and insulation materials. Effects
Possible effects of thermal bridges are: increased heat loss through the wall, leading to higher operating costs,
unanticipated expansion and/or contraction,
local cold or hot spots on the interior at the thermal bridge locations, leading to occupant discomfort and, in some cases, to condensation, moisture-related building damage, and health and safety issues,
local cold or hot spots within the wall construction, leading to moisture condensation within the wall, and possibly to damage of the building materials and/or health and safety problems, and/or
local warm spots on the building exterior, potentially leading to freeze-that damage, such as ice dams, unanticipated expansion or contraction, and possible health and safety issues. Not all thermal bridges cause these severe effects. However, the severity of a particular thermal bridge should be judged by the effect of the thermal bridge on the overall energy performance of the building; the effect on occupant comfort; the impact on moisture condensation and associated aesthetic and/ or structural damage; and degradation of the building materials. Appropriate corrective measures can then be applied to the design.