Attic insulation with effective and harmless insulation products
can not only make your home more comfortable all throughout the year, it can lower your utility bills significantly, help save you lots of money on energy expenditure and control the interior temperature of your house.
Effective attic insulation can keep your home warm in the snowy winters and cool in the hot summers. Following is a list of insulation products
and materials commonly used by homebuilders.
Inorganic rock wool or mineral wool is made out of steel slag, is chemically treated and comprises of limestone and dirt. You can use it for insulation purposes once it is spun into a fibrous material. Its insulation benefits include resistance to mildew, mould, compression, melting, combustion or rotting.
Cellulose, comprised mainly (up to 75 percent) of newsprint or recycled paper is ideal for colder climates and is resistant to compression. However, as it is organic, it can condense in stuffy environments, is favourable to mildew and mould growth and less moisture resistant compared to fibreglass.
This fluffy, pink, inexpensive material with high R values and great insulating properties is ideal for attic insulation. It can come in blankets, batts and precut rolls or as loose fill fibreglass. Fibreglass insulation with greater R values is more resistant to the flow of heat.
Some of the common types of foam insulation materials include polystyrene, polyurethane and polyisocyanurate. They are often made out of recycled plastic resin and make use of environment damaging HCFCs and CFCs.
These types of insulations are also known as rigid insulation products
and are compatible with other kinds of loose fill insulations.
Polystyrene insulation can result in reproductive damage, liver injury, unsteady gait, weakness, drowsiness, malaise, confusion, dizziness, fatigue, headache and irritation of the respiratory system, nose and eyes.
Till the 1970s, the mineral fibre known as asbestos was used as an insulating material. It can be easily moulded into pipe coverings, fabrics and furnace insulation material. It is a great thermal insulator and is also fireproof. However, because of its carcinogenic qualities, most developed nations have banned or regulated its use.
Many people in poor rural areas use bales of straw to insulate the exterior walls. Although it is dirt cheap, it is prone to moisture intrusion and insect infestation.
New Kinds of Foam Insulation
The following types of foam insulations don’t use HCFCs or CFCs.
Marine magnesium oxide is used to produce this kind of inorganic foam. Compressed air and a microscopic cell generator are used to create this foam under pressure.
This low R value foaming agent is created out of a mixture of water and carbon dioxide. Instead of being rigid, this open cell foam is soft and can be foamed inside the cavities of walls.
There are insulation products
made out of plastic fibre, polyester mill scraps, cotton and borates which can keep insects, pests and fire at bay. This type of combustion resistant insulating material is 15 to 20 percent more expensive than fibreglass insulation.