Subgirts and Clips
Thermal Isolation
The transfer of heat from inside a structure to where it meets the colder temperature outside can result in condensation on surfaces that leads to water damage. If you picture an ice cold glass of water on a hot day covered in droplets of condensation, there could be the same effect on hidden surfaces within your roof or wall system. Without adequate ventilation, the condensation can lead to major problems. To help prevent the transfer of heat in the first place, thermal isolation methods are being broadly used across envelope and exterior designs. There are numerous variations of thermal breaks, thermal isolating clips or thermal pads constructed of different materials and each has strengths best suited for specific applications. Cost is also a significant consideration.
Subframing and Structural Girts
With the use of thermal clips or without, sub framing is used in commercial construction and some residential roof and wall systems to allow for external rain-screen system designs and required support for heavier exterior finishes. Girt spacing, gauge and dimensions will be determined through engineering requirements and constructibility.
