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Insulation made of spray foam or spray polyurethane foam (SPF) very effectively contributes to increased energy efficiency and comfort.
What is Insulation?
Insulation means creating a barrier between a hot and cold object that reduces heat transfer by reflecting heat radiation or reducing heat conduction and convection from one object to another. Depending on the barrier material, the insulation is more or less effective. Very low heat-conductive barriers are good heat insulators, while very good heat conductive materials have low insulation capacity.
Insulation materials must be able to maintain their strength and erosion resistance even at very high temperatures and high gas turbulence. A hot spot caused by the deterioration of the stack or boiler insulation can cause a forced shutdown, days of downtime and power failure.
BrandXXX has years of experience in the development and supply of thermal insulation systems. Our products help power plants around the world significantly improve their efficiency due to lower energy losses.
Polyisocyanurate Foam Insulation
With the exception of wet locations, polyisocyanurate is the most environmentally friendly type of foam insulation. Polyiso is a rigid foam sheet, which is often covered with a layer of foil that serves as a barrier to steam or radiation and can be used anywhere in the home. The flame retardants used in Polyiso are also less toxic than those in other foam insulation.
Spray Foam Insulation
Spray foam is a type of insulation sprayed by a gun. Cement foam is applied in a similar way but does not expand. Spray foam insulation is sprayed on concrete slabs, in the wall recesses of the unfinished wall, on the inside of the housing or through holes drilled in the housing or plasterboard in the wall bay of the finished wall. Spray polyurethane foam (SPF) also creates a seamless roof system that offers huge energy savings, excellent insulation, and excellent wind and water resistance. This is a two-part application process installed on existing roofs. The first application fills cracks and seams, then expands to form a closed surface. The second application is a protective layer, thanks to which the roof is particularly durable and resistant to weather conditions.
Cotton slats can be used in the same places as fibreglass or mineral wool slats, which are laid between open rafters, ceiling beams or wall posts. As with any cavity insulation or any natural material, increased humidity is a no-no. Insulation made of cotton can cost twice as much as fibreglass with a comparable insulation effect, but you can save money if you install it yourself, because cotton can be treated without safety equipment or the health problems of other insulation materials. Wool insulation is made from wood waste, which is rejected by the carpet and textile industry and is available in rolls as well as strips for thermal and sound insulation of residential and commercial buildings. Because wool absorbs moisture, it heats up, which reduces the risk of condensation. It has the unique ability to absorb and permanently bind VOC gases (volatile organic compounds) such as formaldehyde, nitrogen dioxide, or sulfur dioxide.
You can arrange the slats in two layers perpendicular to each other in the unfinished attic to more effectively prevent thermal bridges (areas that conduct heat more easily). Ceilings can cover beams and posts, as well as the space between them. The gaps between the strips (circuits) can become places of air infiltration or condensation (both reduce the effectiveness of insulation) and require careful attention during installation. Careful ventilation and installation of vapour barriers are also necessary to ensure optimal performance of bats.
Batts and Blankets
The most popular type of insulation, batts and blankets, is perfect for home renovation projects. They are usually packed in rolls and are easy to carry and transport. Sometimes they are equipped with a vapour barrier to protect them from moisture. The three most common types of batts and blankets are fibreglass, mineral wool and cotton. The blue plastic in the centre is a vapour barrier for thermal insulation before the external cladding is attached. Building insulation materials are building materials that form a building’s thermal barrier or otherwise reduce heat transfer. Sometimes a heat-reflecting surface, called a radiation barrier, is added to the material to reduce heat transfer by radiation and heat conduction.
Glass insulation has various shapes, including solid glass, fibre strips, fibreglass sheets and mats, woven snakes and fabrics, and various composites. The polyimide film has extremely good heat resistance and excellent mechanical and electrical properties. Kynar is a fluoropolymer with excellent chemical resistance and abrasion resistance.
Acetate tapes are used when good adaptability is desired, for example when covering spools, just like white cotton tape. Insulating tape made of glass fabric with thermosetting glue (the glue that hardens with temperature) is used to protect the heating elements or to insulate elements exposed to heat. Kapton, Teflon and other insulators are used to make high-performance special tapes for harsh temperatures or chemical environments.
Batts do not use a toxic glass fibre formaldehyde carrier, and the production process is not as energy-intensive as the extraction and production of fibreglass. A small amount of polyolefin melts as an adhesive to bind the product together (and is better than formaldehyde glues).
Inspired by the microstructure of polar bear hair and how it provides thermal insulation in an inhospitable environment, Chinese researchers have developed an insulator that simulates the structure of individual hairs in a synthetic material. Since the properties of polar bear hair prevent heat loss, they are a useful model for a synthetic heat insulator. This new material mimics the structure of polar bear hair and binds heat in the same way.
Wool is flame retardant, odourless and a fully renewable and biodegradable natural product that can be safely recycled at the end of its life, thereby reducing environmental impact. Therefore, naturally adaptable wool-based insulation such as HDWool® Active Insulation is an excellent alternative to conventional down and plastic insulation.
Vacuum insulation panels consist of an evacuated core made of compressed micro-glass fibres. This is surrounded by a recyclable barrier film that repels water moisture and atmospheric gases. This technology offers an extremely high insulation or lambda value (0.007 W / m2K), which means that vacuum insulation panels insulate 5x better on average than conventional insulation materials.
- Wool can absorb 33% of its own weight of water before it gets wet.
- Air bubbles make spray foam extremely energy-efficient – studies have shown that foam roofs often lead to energy savings of 30% or more compared to other roof systems.
- Another study by Oakridge National Laboratories found that installation of SPF insulation achieves 50% lower cooling and heating costs. That’s 58% less in energy costs.
- A high fibre ratio (65%) for exceptional strength and durability can easily be achieved with just 80% of normal insulation in an improved fibre optic network with 30% more fibres for greater tensile strength.
- Superwool Plus has a high fibre index, which results in a 20% improvement in conductivity at 1000° C and with continuous use at this (maximum) temperature, the shrinkage of the material is less than 4%.
- Statistics show that almost 50 to 70% of the heat from our homes is lost through single-layer glass. Double-glazed windows can reduce the penetration of external noise by up to 60%.