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Ridge Vent
A ridge vent is a type of vent installed at the peak of a sloped roof which allows warm, humid air to escape a building's attic. Ridge vents are most common on shingled residential buildings. Ridge vents are also used in industrial warehouses to help release the hot air and help circulate comfortable air inside the building . For ridge venting to be effective, soffit vents must be present, especially on residential applications. Most shingle manufacturers have ventilation calculators to help you calculate the right amount of ventilation to add to a home. References External linksMinimizing Water Intrusion Through Roof Vents in High-Wind Regions Roofs {{architecturalelement-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balloons - Helium Plants - Development Of Helium Work Carried On Under Direction Of The Bureau Of Mines
A balloon is a flexible bag that can be inflated with a gas, such as helium, hydrogen, nitrous oxide, oxygen, and air. For special tasks, balloons can be filled with smoke, liquid water, granular media (e.g. sand, flour or rice), or light sources. Modern day balloons are made from materials such as rubber, latex, polychloroprene, or a nylon fabric, and can come in many different colors. Some early balloons were made of dried animal bladders, such as the pig bladder. Some balloons are used for decorative purposes or entertaining purposes, while others are used for practical purposes such as meteorology, medical treatment, military defense, or transportation. A balloon's properties, including its low density and low cost, have led to a wide range of applications. The rubber balloon was invented by Michael Faraday in 1824, during experiments with various gases. He invented them for use in the lab. Applications Play Decoration Balloons are used for decorating birthday part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roof Shingle
Roof shingles are a roof covering consisting of individual overlapping elements. These elements are typically flat, rectangular shapes laid in courses from the bottom edge of the roof up, with each successive course overlapping the joints below. Shingles are held by the roof rafters and are made of various materials such as wood, slate, flagstone, metal, plastic, and composite materials such as fibre cement and asphalt shingles. Ceramic roof tiles, which still dominate in Europe and some parts of Asia, are still usually called tiles. Roof shingles may deteriorate faster and need to repel more water than wall shingles. They are a very common roofing material in the United States. Etymology and nomenclature Shingle is a corruption of German meaning a roofing slate."Shingle" def. 1. Whitney, Willi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
