Pipe Flashings Seal Roof Structure Penetrations

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Pipe flashings are used as a way of sealing the spaces which are formed along the pipes that penetrate through the roof. Instead of hand fabricate a metal flashing to seal these penetrations, finally, there are pre-made vent flashing products which greatly simplifies this process. Modern compounds like EPDM and Silicone rubbers are replacing light weight aluminum, copper and lead to be the materials of choice for flashings. These materials have increased durability and weather resistance, as well as better efficiency and ease of installation.

Pipe flashings are a necessary part of house construction, as the gaps which might be inevitable at the point where vent pipes pass through the roof can result in moisture damage that can be expensive to repair. Normally these flashings include a flexible type of rubber sleeve using a wide base that slides down over about the pipe or vent and is then attached to the roofing material to generate a water seal. Even Though many different sheet metal products are the most common materials employed to make pipe flashing, the latest innovation of rubber compound pipe boots has simplified the task through a prefabricated design, with the use of non- metallic materials bringing the benefit weather resistance.

Also called pipe boots, these pipe sealing solutions include a flexible, molded bottom that is secured to the roof for a secure and uniform fit. The cost of prefabricated boots can be one of its greatest advantages, as the work necessary for custom- made flashing is eliminated. They can also be designed to match any sort of roof construction, such as steeply pitched roofs, which can prevent the occurrence of pitch pockets that permit water to leak under the flashing when the fit is not secure. The use on non- metallic materials also adds life to the seal, with EDPM rubber, silicone, and thermoplastic olefin increasingly being the most commonly chosen materials.

EDPM is a synthetic rubber that’s often chosen because it is both flexible and straightforward to install. However, silicone is becoming a popular alternative because of its durability and weather resistance, since the material will not crack due to exposure to the sun, also it can stand up to even extreme temperature ranges and types of conditions. Thermoplastic olefin is a newer boot material that’s proving to be successful in providing superior pipe seals, especially in the area of self- sealing pipe flashing. Thermoplastic olefin, or TPO, is frequently designed as pre-made cones that can be cut to the exact diameter of the pipe, and creates a particularly snug seal with the use of pre-applied engineering sealant. These non- metallic materials last longer than standard metal flashings because they eliminate the rust and corrosion that can result in flashing failures.

Pipe flashing is integrated into roof building as a means to create a seal at the point where vent pipes project through the roof. While sheet metal was once the most common material used for flashing, pipe boots made of non- metallic materials are gathering popularity due to their weather resistance, with pre- made designs removing the need for custom creations. Many prefabricated flashings are easy to install, which can make pipe sealing a do-it- yourself project. Pipe and vent flashings are available from a number of suppliers in both the local area and online, and shopping around can offer the basis for comparison of both products and costs.

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Source by Vincent O’Neil