The following range of flashings have proven to be universally popular and suitable for most applications. Minor local variations may exist from that shown. Dimensions are nominal and may vary with changes in material.
Details associated with the Divisional CSI standards. Most of the details are associated with Division Mechanical. Skip to main content.
Flashing refers to thin pieces of impervious material installed to prevent the passage of water into a structure from a joint or as part of a weather resistant barrier system. In modern buildings, flashing is intended to decrease water penetration at objects such as chimneysvent pipes, walls, windows and door openings to make buildings more durable and to reduce indoor mold problems. Metal flashing materials include leadaluminiumcopper stainless steelzinc alloyand other materials.
Standing seam metal roofs have proven record of longevity and value in providing a very weathertight roofing solution. But the performance of any roof can be compromised by needed penetrations to accommodate other building systems. Done poorly, those penetrations can cause leaks, building damage, and unnecessary expenses.
On the surface, the idea of adding equipment to a roof without penetrations sounds pretty good. Keep reading to see why this may be the wrong approach It is understandable that people hate roof penetrations and try to avoid them at all cost.
The provisions of this chapter shall govern the materials, systems and assemblies used for structural fire resistance and fire-resistance-rated construction separation of adjacent spaces to safeguard against the spread of fire and smoke within a building and the spread of fire to or from buildings. Fire assemblies that serve multiple purposes in a building shall comply with all of the requirements that are applicable for each of the individual fire assemblies. The following terms are defined in Chapter 2 :.
Custom engineered and pre-built Unistrut Rooftop Support Systems are easy to install and safe for all roofing materials. Each rooftop support combines fully adjustable Unistrut channel—eliminating the cutting and welding associated with most fabricated supports—with a secure, non-penetrating rubber base. Whether your application calls for a custom or stock solution, Unistrut Service Company has the expertise required to solve even the most challenging rooftop support system installations.
Description: Roof penetrations can be categorized by whether the roof is sloped or flat. The preferred method of flashing penetrations through flat roofs involves the construction of a curb around the opening. Small penetrations often do not require curbs.
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