العزل بالمادة الرغوية ( Foam Insulation ) باللغة الانكليزية


(م. عبد المنعم) #1

بسم الله الرحمن الرحيم

الحمد لله رب العالمين والصلاة والسلام على أشرف الأنبياء والمرسلين سيدنا محمد وعلى آله وصحبه أجمعين

الاخوة الكرام
السلام عليكم ورحمة الله وبركاته

نقدم بعون من الله وتوفيقه ، موضوعاً عن :
العزل بالمادة الرغوية
( Foam Insulation )
باللغة الانكليزية

Foam insulation is used one of the types of material commonly used to insulate homes and other buildings. It is used in most of the same places as the more traditional batt insulation, and is easy to install for professionals who have the necessary equipment

What is Foam Insulation

Sprayed foam insulation consists of a two-part liquid. One part is a polymer, such as polyurethane, and the other part is a foaming agent. The liquid is sprayed into the cavities of walls, ceilings, and floors; it works by expanding into a solid cellular plastic that fills even hard-to-reach and small parts of cavitie

Foam insulation also comes in the form of foam boards and liquid foam that can be poured from a container. The spray foams are often cheaper, and can perform better because they mold themselves to the space they are sprayed into

Advantages of Foam Insulatio

Foam insulation is easily installed when the proper equipment is available. However, it may be necessary to wear protective equipment when the foam is sprayed because, in some foams, the chemicals can cause lung damage

On the other hand, many of the foams on the market use environmentally-friendly chemicals and do not contain the HCFCs that harm the earth’s ozone layer. It is also generally necessary to complete spray foam installation by trimming excess amounts, and by enclosing the foam with some form of barrier

Spray foam insulation typically acts as an air barrier, as well as a thermal barrier. It seals out air by expanding to fill small holes and crevices. As a result, there may not be a need for additional work to perform air-tightness detailing

Foams have up to twice the R-values that are associated with standard batt insulation materials. The R-value is a measure of how well insulation impedes heat flow. Because of its higher R-values, foam can be used in smaller spaces to provide better energy efficiency

Disadvantages of Foam Insulation

Foam insulation tends to be more expensive than batt insulation. However, the air-tightness provided by foam can offset the extra cost to some extent. The process of installing foam makes it more compatible with new construction than with existing structures

Foam is not generally used for insulating attics. The reason is that attics are usually required to be ventilated, which is not compatible with the air-tightness of foam insulation

Although it is fairly difficult to ignite, once it is lit, foam insulation will burn readily. The smoke can contain toxic gases and, as a result, building codes may require covering the foam with a fire barrier

Foam board used to insulate a foundation is not a food source for insects

However, when used in foundations foam board is susceptible to having insects burrow through it. The burrowing can reduce the R-value of the insulation and can harm the structural integrity of the insulation

As a result, some products are treated with insecticides and some building codes regulate how to treat the earth around a building

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(كواريزما) #2

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(المهندس سهيل صبرا) #3

موضوع حلو ولو تمت ترجمتة الى العربي لسهول فهم المصطلحات