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INSULATION MATERIALS USAGE IN BUILDINGS | Engineering UPdates



Insulation Materials

These materials or the composition of materials, if used in an appropriate manner, can prevent or reduce heat transmission by different thermal transport means (delivery - pregnancy - radiation).
The use of insulation in the the can be fundamentally divided as follows:

Non-Organic Insulation Materials from fibers or cells such as glass, asbestos, Wool Wool, author, Pearl, and fermi.

Fibrous organic insulation materials such as cotton, wool animals, cane or cellular, such as cork, Rubber Foam, polyurethane or polyurethane.

Metal Insulation Materials Aluminum Foil and reflective tin.

The forms on which the buffer materials exist are as follows:


The use of insulation in buildings is bulk insulation and is usually in the image of grains or powder that usually pours between walls or in any closed vacuum and can be mixed with some other materials and is particularly used to fill irregular spaces.

The use of insulation in buildings is flexible insulation, which is different in its degree of flexibility, did or pressure, usually in the form of pieces or rolls, and usually evidenced by a prince, such as glass wool, rock and aluminum chips and Towards her.

Solid Material: in the form of panels with limited dimensions and features of Polly and Polly.

The use of insulation in buildings is liquid buffer materials that pour or spray in or on the place required to form a buffer layer such as polyurethane foam.

Thermal Insulation Properties
In view of design requirements, the choice of a specific buffer material requires, in addition to knowledge of thermal characteristic, knowledge of other secondary characteristics of the substance as a as, combustion, hardness.. etc



Thermal Properties:

It is intended to be capable of insulating thermal insulation and is usually measured by a thermal delivery factor, as far as the delivery factor is said to increase the resistance of the substance to Thermal Resistance is inversely proportional to the thermal delivery coefficient during the buffer material usually done by all different means of transport (delivery, pregnancy and radiation).

Reflective material, for its high ability to respond to radiation and heat waves, is considered to be effective in thermal insulation, provided that it meets an air vacuum and increases the ability of such materials to isolate by increasing their frequency and frequency.

The buffer material is often integrated with walls and ceilings, and so knowledge of the total resistance to thermal transport must be combined with different resistance to wall or ceiling layers, including resistance to the air layer adjacent to internal or external surfaces.

The combination of these resistors is quite similar to that of electrical resistors, either in parallel or sequence and depends on the combination of materials in the wall or in the ceiling. In addition to thermal characteristics, there are other characteristics such as quality heat, thermal capacity, stretching and deployment, which must be known to each buffer.



Mechanical properties

Some buffer material is characterized by a conviction and ability to load. Therefore, it can sometimes be used to contribute to the support and loading of the building in addition to its primary objective of thermal insulation. That's why he looks at the power of pressure, tug, shear.. etc.

Suction.

Moist, Liquid or solid water in the buffer material reduces the value of thermal insulation of the substance or reduces thermal resistance, and may contribute to the rapid destruction of the substance.

The effect of moisture on the substance depends on the characteristics of the substance in terms of its ability to absorb and enforce, as it depends on the climatic atmosphere surrounding it as heat shield, humidity The characteristics that measure the extent to which the substance affects humidity are absorption and permeability.

Safety and health


For some buffer material, certain characteristics of which may jeopardize a human being, both at storage time, during transport, installation, or during the period of use, may cause trends in human body, permanent or temporary, such as wounds, blisters, poisoning and inflammation. The or sensitivity to skin and eyes, which requires the importance of knowledge of the chemical composition of the insulation. Its other physical qualities in terms of its susceptibility to combustion and transcendence.

Sound


Some heat insulation materials may be used to achieve some sound requirements for sound as, distract and vibrations, so knowledge of the characteristics associated with this aspect may meet two objectives by one means.

In addition to the above characteristics, there are characteristics that may be necessary when choosing the appropriate buffer material as density, ability to resist deflation, usability, dimensional system, resistance to chemical reactions, sizes, fish available.. etc. In addition to all of the above, the economic factor has finally played an important role in decision-making.

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