A properly designed and installed insulation system offers immediate and long-term benefits. Insulation protects your personnel, your equipment, your system, and your budget. Click here to learn more about the Power of Insulation. A properly designed and installed insulation system immediately reduces the need for energy and results in significant savings. On hot pipes and surfaces, heat loss can be reduced by about 20 times.
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Building insulationVIDEO ON THE TOPIC: Reduce Engine Noise, Underbonnet Sound Deadening
Building insulation is any object in a building used as insulation for any purpose. While the majority of insulation in buildings is for thermal purposes, the term also applies to acoustic insulation , fire insulation , and impact insulation e.
Often an insulation material will be chosen for its ability to perform several of these functions at once. Thermal insulation usually refers to the use of appropriate insulation materials and design adaptations for buildings to slow the transfer of heat through the enclosure to reduce heat loss and gain.
The rate of transmission is closely related to the propagating medium. This heat reduction and acquisition are usually unwelcome. It not only increases the load on the HVAC system resulting in more energy wastes but also reduces the thermal comfort of people in the building. Thermal insulation in buildings is an important factor in achieving thermal comfort for its occupants.
It does not necessarily deal with issues of adequate ventilation and may or may not affect the level of sound insulation. In a narrow sense insulation can just refer to the insulation materials employed to slow heat loss, such as: cellulose, glass wool, rock wool, polystyrene, urethane foam, vermiculite, perlite, wood fiber, plant fiber cannabis, flax, cotton, cork, etc.
Most of the materials in the above list only retain a large amount of air or other gases between the molecules of the material. The gas conducts heat much less than the solids. These materials can form gas cavities, which can be used to insulate heat with low heat transfer efficiency. This situation also occurs in the fur of animals and birds feathers, animal hair can employ the low thermal conductivity of small pockets of gas, so as to achieve the purpose of reducing heat loss.
The effectiveness of reflective insulation radiant barrier is commonly evaluated by the reflectivity emittance of the surface with airspace facing to the heat source. For example in the US the insulation standard for for attics, is recommended to be at least R US units, equivalent to R Newer buildings have to meet a higher standard than those built under previous versions of the regulations. It is important to realise a single R-value or U-value does not take into account the quality of construction or local environmental factors for each building.
Construction quality issues can include inadequate vapor barriers and problems with draft-proofing. In addition, the properties and density of the insulation material itself are critical.
Most countries have some regime of either inspections or certification of approved installers to make sure that good standards are maintained.
The history of thermal insulation is not so long compared with other materials, but human beings have been aware of the importance of insulation for a long time. This effect keep inside of the buildings warm in winter and cool in summer, also because of the materials like earth or stone is easy to get, this design is really popular in many places like Russia, Iceland, Greenland.
Organic materials were the first available to build a shelter for people to protect themselves from bad weather conditions and to help keep them warm. So, people began to search for substitutes which are more durable. Thermal insulation can play a significant role in buildings, great demands of thermal comfort result in a large amount of energy consumed for full-heating for all rooms. Sufficient thermal insulation is the fundamental task that ensures a healthy indoor environment and against structure damages.
It is also a key factor in dealing with high energy consumption, it can reduce the heat flow through the building envelope. Good thermal insulation can also bring the following benefits to the building:. Preventing building damage caused by the formation of moisture on the inside of the building envelope.
Producing a comfortable thermal environment for people living in the building. Reducing unwanted heating or cooling energy input. Thermal insulation reduces the heat exchange through the building envelope, which allows the heating and cooling machines to achieve the same indoor air temperature with less energy input. How much insulation a house should have depends on building design, climate, energy costs, budget, and personal preference.
Regional climates make for different requirements. Building codes often set minimum standards for fire safety and energy efficiency, which can be voluntarily exceeded within the context of sustainable architecture for green certifications such as LEED. The insulation strategy of a building needs to be based on a careful consideration of the mode of energy transfer and the direction and intensity in which it moves. This may alter throughout the day and from season to season.
It is important to choose an appropriate design, the correct combination of materials and building techniques to suit the particular situation. And the standard has some mandatory thermal insulation requirements. The thermal insulation requirements are shown as R-value and continuous insulation R-value as the second index. To determine whether you should add insulation, you first need to find out how much insulation you already have in your home and where. A qualified home energy auditor will include an insulation check as a routine part of a whole-house energy audit.
Here, a visual inspection, along with use of a ruler, can give you a sense of whether you may benefit from additional insulation. In Russia , the availability of abundant and cheap gas has led to poorly insulated, overheated and inefficient consumption of energy. The Russian Center for Energy Efficiency found that Russian buildings are either over- or under-heated, and often consume up to 50 percent more heat and hot water than needed.
Energy codes in Russia start to establish in , norms and rules first mentioned the performance of the building envelope and heat losses, and they formed norms to regulate the energy characteristics of the building envelope. The thermal insulation requirements of Australia follow the climate of the building location, the table below is the minimum insulation requirements based on climate, which is determined by BCA.
China has various climatic characters, which are divided by geographical areas. The very cold zone, cold zone, hot summer and cold winter zone, hot summer and warm winter zone and cold winter zone.
Germany established its requirements of building energy efficiency in , and the first energy code-the Energy Saving Ordinance EnEV which based on the building performance was introduced in The building decree of The Netherlands makes a clear distinction between home renovation or newly build houses. New builds count as completely new homes, but also new additions and extensions are considered to be new builds. Therefore, during thorough renovations, there's a chance that the new construction must meet the new building requirement for insulation of The Netherlands.
If the renovation is of a smaller nature, the renovation directive applies. Examples of renovation are post-insulation of a cavity wall and post-insulation of a sloping roof against the roof boarding or under the tiles. Note that every renovation must meet the minimum Rc value of 1. If the current insulation has a higher insulation value the legally obtained level , then this value counts as a lower limit. The standards have been revised several times in recent years, enquiring more efficient use of energy as the UK moves towards a low carbon economy.
In cold conditions, the main aim is to reduce heat flow out of the building. Losses can be reduced by good weatherisation , bulk insulation, and minimising the amount of non-insulative particularly non-solar facing glazing. Indoor thermal radiation can also be a disadvantage with spectrally selective low-e, low-emissivity glazing.
Some insulated glazing systems can double to triple R values. The vacuum panels and aerogel wall surface insulation are two technologies that can enhance the energy performance and thermal insulating effectiveness of the residential buildings and commercial buildings in cold climate regions such as New England and Boston. Especially in the cold climate areas, a large amount of thermal insulation is needed to deal with the heat losses caused by cold weather infiltration, ventilation, and radiation.
There are two technologies that are worth discussing:. VIPs are noticeable because of their ultra-high thermal resistance,  their ability of thermal resistance is four to eight times more than conventional foam insulation materials which lead to a thinner thickness of thermal insulation to the building shell compared with traditional materials. The VIPs are usually composed of core panels and metallic enclosures. And the core panel is covered by the metallic enclosure to create a vacuum environment, the metallic enclosure can make sure that the core panel is kept in the vacuum environment.
Aerogel was first discovered by Samuel Stephens Kistle in But the difficulties in processing and low productivity limit the development of Aerogels,  the cost price of this material still remains at a high level. Only two companies in the United States offer the commercial Aerogel product. In hot conditions, the greatest source of heat energy is solar radiation. Solar gain can be reduced by adequate shading from the sun, light coloured roofing , spectrally selective heat-reflective paints and coatings and various types of insulation for the rest of the envelope.
Radiant barriers are highly effective for attic spaces in hot climates. For downward heat flow, convection is weak and radiation dominates heat transfer across an air space. Radiant barriers must face an adequate air-gap to be effective. If refrigerative air-conditioning is employed in a hot, humid climate, then it is particularly important to seal the building envelope.
Dehumidification of humid air infiltration can waste significant energy. On the other hand, some building designs are based on effective cross-ventilation instead of refrigerative air-conditioning to provide convective cooling from prevailing breezes. The cool roof is low-cost technology based on solar reflectance and thermal emittance, which uses reflective materials and light colors to reflect the solar radiation.
On the other hand, the high reflectivity and thermal emittance of the roof will increase the heating load of the building. Optimal placement of building elements e. Reflective laminates can help reduce passive solar heat in pole barns, garages, and metal buildings. See insulated glass for discussion of windows. The thermal envelope defines the conditioned or living space in a house. The attic or basement may or may not be included in this area.
Reducing airflow from inside to outside can help to reduce convective heat transfer significantly. Ensuring low convective heat transfer also requires attention to building construction weatherization and the correct installation of insulative materials. The less natural airflow into a building, the more mechanical ventilation will be required to support human comfort. High humidity can be a significant issue associated with lack of airflow, causing condensation , rotting construction materials, and encouraging microbial growth such as mould and bacteria.
Moisture can also drastically reduce the effectiveness of insulation by creating a thermal bridge see below. Air exchange systems can be actively or passively incorporated to address these problems. Thermal bridges are points in the building envelope that allow heat conduction to occur.
Since heat flows through the path of least resistance, thermal bridges can contribute to poor energy performance. A thermal bridge is created when materials create a continuous path across a temperature difference, in which the heat flow is not interrupted by thermal insulation. Common building materials that are poor insulators include glass and metal. A building design may have limited capacity for insulation in some areas of the structure.
A common construction design is based on stud walls, in which thermal bridges are common in wood or steel studs and joists , which are typically fastened with metal.
Our solutions help minimise the environmental footprint of buildings and industry while improving comfort and well-being:. Skip to main content. Home Products Product Range. Product Range. Our solutions help minimise the environmental footprint of buildings and industry while improving comfort and well-being. Our three insulation product ranges offer key performance in the areas of thermal, acoustic and fire safety for the building and technical environment.
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Benefits of Insulation
Fire-resistant stone wool insulation for curtain wall systems Read more Creating safer, more energy-efficient environments Fire Resilient Design Our non-combustible insulation paired with a cladding that brings your vision to life helps to create safer, more energy-efficient environments — without ever sacrificing your design freedom. Read more Sustainable solutions for wood frame building Wood Frame Construction Evolving building codes now allow for taller wood frame buildings. This introduction discusses why these changes have taken place and what is expected in the future. Read more What are you insulating? Interior Walls Interior Wall Insulation Our stone wool insulation can be used in multiple interior partition wall assemblies, both in steel or wood stud wall cavities. Find a product Exterior Walls Exterior Wall Insulation Our insulation provides a range of products and solutions for exterior wall systems such as rainscreen, cavity wall, exterior continuous insulation, curtain wall, wood frame and metal frame constructions.SEE VIDEO BY TOPIC: The Different Types of Insulation - Fuel Poverty
Generally the air temperature inside a warehouse will be different to that outside the warehouse, but they will try to equalise by moving through the barrier between them walls, windows and ceiling. Insulation is a layer of material that restricts the ability of the air to move through it. So in winter it keeps the warm air inside longer thus reducing the energy used to warm the building , and in summer it keeps the warm air outside longer reducing the energy used cooling the building. Insulation saves on energy use by reducing the use of heating and cooling appliances. We also need to consider other factors when assessing savings because heat can move through glass, wood, brick, cracks, gaps and the like, where insulation might not be able to be used. A professional will be able to advice on a complete solution to reduce your energy cost. The thickness and density of insulation and thus effectiveness is measured by an industry standard called the R rating. The higher the R rating 3. Some climates require higher rated insulation to be effective.
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Sound insulation for industrial buildings, factories and workshops
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Insulation materials run the gamut from bulky fiber materials such as fiberglass, rock and slag wool, cellulose, and natural fibers to rigid foam boards to sleek foils. Bulky materials resist conductive and -- to a lesser degree -- convective heat flow in a building cavity. Rigid foam boards trap air or another gas to resist heat flow. Highly reflective foils in radiant barriers and reflective insulation systems reflect radiant heat away from living spaces, making them particularly useful in cooling climates. Other less common materials such as cementitious and phenolic foams and vermiculite and perlite are also available.
Sound Absorption Materials
For example, when someone sings, their vocal cords vibrate and send waves through the air to the listener. Higher frequency sounds consist of short sound waves, whereas lower frequency sounds contain long waves.
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