When buying an insulation material, you can select it from a variety of manufacturers in the market. However, there are important factors that you should put into consideration such as stability and performance for your application. The energy saved from a properly ventilated envelope is much more compared to the environmental impact from the manufacture of the insulation. When comparing two materials, you should consider the impact on the environment from each of the product.
One product is cellulose insulation, which is made mainly from recycled paper. It uses some of the pollution and energy use needed to manufacture fiberglass and mineral wool insulation when being manufactured. To reduce waste, you can reuse scrap cellulose produced as a by product during installation. The insulation has no significant impact on the air quality inside. It is stuffed into ceiling, wall cavities and attic surfaces.
Cotton insulation, on the other hand, is manufactured using cotton, a little boron to prevent fire ad some polyester. Most of the cotton is recycled from scrap as a by product in the manufacture of denim. The insulation does not have any formaldehyde, and cannot cause skin or respiratory problems from its fibers. Cotton batts can be used for the same purpose as mineral wool batts or fiberglass, rolled out between ceiling joists, open roof rafters or wall studs.
Fiberglass on the other hand, is made of recycled glass and silica sand, which are abundant resources. Its manufacture requires assembling the materials to melt in a fossil fuel, which uses a lot of energy and produces a significant amount of air pollution as compared to other types of insulation. It is hard to inhale the fibers if you install them properly, which can irritate the skin, eye and throat.
Foam insulations have the most environmental impact because of its extraction, processing and transport of raw materials like petroleum and natural gas. However, because of their numerous benefits such as higher R-values for a certain thickness and their ability to air seal surfaces greatly, these setbacks can be overseen. Because of their durability and high R-values, they can save more energy over the lifespan of your home.
Polyisocyanurate, with the exception of areas which are moist, may be the most suitable type of foam insulation. It consists of polysio, a rigid foam board, and engrossed in a layer of foil behind like a radiant or vapor barrier, that you can use in just about all areas of your house. Made using more than nine percent of recycled content, and flame retardants, in addition to a high R- value, polyiso is preferred as an alternative to polystyrene foam insulation.
Two types of polystyrene exist; expanded and extruded, otherwise known as beadboard, and blueboard respectively. There is no minimum content for recycling polystyrene, but its products may have some recycled content due to the recycling of the polystyrene itself. There are brominated flame retardants in polystyrene that raise serious environmental and health concerns because some of the compounds are bioaccumulative.
Mineral wool is required by the EPA to have a weight of at least seventy percent of recycled content by weight. It is made from strands of minerals. The insulation is more moisture-resistant and durable, even though it is more costly than fiberglass and cellulose.
One product is cellulose insulation, which is made mainly from recycled paper. It uses some of the pollution and energy use needed to manufacture fiberglass and mineral wool insulation when being manufactured. To reduce waste, you can reuse scrap cellulose produced as a by product during installation. The insulation has no significant impact on the air quality inside. It is stuffed into ceiling, wall cavities and attic surfaces.
Cotton insulation, on the other hand, is manufactured using cotton, a little boron to prevent fire ad some polyester. Most of the cotton is recycled from scrap as a by product in the manufacture of denim. The insulation does not have any formaldehyde, and cannot cause skin or respiratory problems from its fibers. Cotton batts can be used for the same purpose as mineral wool batts or fiberglass, rolled out between ceiling joists, open roof rafters or wall studs.
Fiberglass on the other hand, is made of recycled glass and silica sand, which are abundant resources. Its manufacture requires assembling the materials to melt in a fossil fuel, which uses a lot of energy and produces a significant amount of air pollution as compared to other types of insulation. It is hard to inhale the fibers if you install them properly, which can irritate the skin, eye and throat.
Foam insulations have the most environmental impact because of its extraction, processing and transport of raw materials like petroleum and natural gas. However, because of their numerous benefits such as higher R-values for a certain thickness and their ability to air seal surfaces greatly, these setbacks can be overseen. Because of their durability and high R-values, they can save more energy over the lifespan of your home.
Polyisocyanurate, with the exception of areas which are moist, may be the most suitable type of foam insulation. It consists of polysio, a rigid foam board, and engrossed in a layer of foil behind like a radiant or vapor barrier, that you can use in just about all areas of your house. Made using more than nine percent of recycled content, and flame retardants, in addition to a high R- value, polyiso is preferred as an alternative to polystyrene foam insulation.
Two types of polystyrene exist; expanded and extruded, otherwise known as beadboard, and blueboard respectively. There is no minimum content for recycling polystyrene, but its products may have some recycled content due to the recycling of the polystyrene itself. There are brominated flame retardants in polystyrene that raise serious environmental and health concerns because some of the compounds are bioaccumulative.
Mineral wool is required by the EPA to have a weight of at least seventy percent of recycled content by weight. It is made from strands of minerals. The insulation is more moisture-resistant and durable, even though it is more costly than fiberglass and cellulose.
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