Internal Flashings
Internal Flashings - Related Videos
10:32
Thermal Diffusivity and the Laser Flash Method
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2023
Source: Elise S.D. Buki, Danielle N. Beatty, and Taylor D. Sparks, Department of Materials Science and Engineering, The University of Utah, Salt Lake City, UT The laser flash method (LFA) is a technique used to measure thermal diffusivity, a material specific property. Thermal diffusivity (α) is the ratio of how much heat is conducted relative to how much heat is stored in a material. It is related to thermal conductivity (), how much heat is transferred through a material due to a temperature...
11:35
Flash Photolysis of Caged Compounds in the Cilia of Olfactory Sensory Neurons
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Cited by 8 •
2011
Photolysis of caged compounds allows the production of rapid and localized increases in the concentration of various physiologically active compounds. Here, we show how to obtain patch-clamp recordings combined with photolysis of caged cAMP or caged Ca for the study of olfactory transduction in dissociated mouse olfactory sensory neurons.
28:32
Flash Freezing and Cryosectioning E12.5 Mouse Brain
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Cited by 6 •
2007
Demonstrated in this video are the techniques for flash freezing and sectioning embryonic brain tissue from mouse. Useful tips for using the cryostat are given, including troubleshooting methods that can be used while cutting to ensure that the resultant tissues sections are free of cracks and other distortions.
09:18
Internal Standards
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2023
Source: Laboratory of Dr. B. Jill Venton - University of Virginia The goal of many chemical analyses is a quantitative analysis, where the amount of a substance in a sample is determined. In order to accurately calculate the concentration of an unknown from a sample, careful sample preparation is key. Every time a sample is handled or transferred, some of the sample can be lost. There are strategies however, for minimizing sample loss. There are also strategies for coping with sample loss and...
02:00
Internal Energy
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2020
The total of all possible kinds of energy present in a substance is called the internal energy (U), sometimes symbolized as E. Suppose a system with initial internal energy, Uinitial, undergoes a change in energy (transfer of work or heat), and the final internal energy of the system is Ufinal. Change in internal energy equals the difference between Ufinal and Uinitial. Although the values for Ufinal and Uinitial cannot be determined for a system, the first law of thermodynamics only...
FAQs
Overlap creates a continuous water-management path between the flashing and adjacent materials. Instead of allowing incidental moisture to stop at a joint or enter the assembly, the layered arrangement directs it toward the drainage plane, weep openings, or exterior. This continuity is especially important where different components meet, because gaps or interruptions can undermine the intended moisture-control strategy.
These transitions bring multiple building materials and planes together, creating locations where water can move into wall, roof, or masonry spaces if the interfaces are not coordinated. Internal flashings at these points help collect and redirect that moisture. Effective detailing reduces the likelihood of leakage and limits conditions that can contribute to corrosion, rot, or freeze-thaw damage.
A flashing cannot reliably manage moisture when surrounding components interrupt its path or leave unprotected joints. Integration with membranes, sealants, and cladding supports a continuous envelope strategy, allowing water collected at one layer to move toward an intended drainage location. This coordinated approach improves the reliability of the assembly rather than depending on a concealed component in isolation.
Engineers should check the flashing location, its overlap with adjacent materials, and the continuity of its connection to the drainage plane. They should also confirm that collected moisture has a route to weep openings or the exterior and that membranes, sealants, and cladding do not interrupt that route. These checks help convert a design intent into a continuous moisture-control detail.
Common locations include window and door openings, roof-to-wall junctions, and masonry cavities. Each application involves a transition where incidental moisture must be directed away from interior or structural spaces. The appropriate drainage destination may be a drainage plane, weep opening, or exterior surface, depending on how the surrounding assembly is arranged and integrated.
Properly detailed internal flashings help limit water entry into walls, roofs, and other structural spaces. By redirecting incidental moisture before it accumulates, they support protection against leakage, corrosion, rot, and freeze-thaw damage. In engineering practice, their value lies in improving the durability and reliability of the broader building-envelope moisture-control strategy.