What is insulation?
The air that gets hotter every day causes the temperature in the house to warm up as well. “Insulation” is the best choice in keeping our home cooler. Good insulation serves to resist or prevent heat energy from passing through easily. In general, insulation is light and has properties to block heat in the air bubbles. Therefore, it is popular to be installed on the roof frame to reduce the heat of the sunlight from passing into the house and causing the house to heat up. It can also be used for ceiling installation as well. There are four types of insulation :
It is the most commonly heard type of insulation and is available in a wide variety of brands. It consists of small fibers that join together to form a cavity. There is a sheet of aluminum foil covering both the top and bottom, which serves to keep the heat inside. It also helps to absorb sound, not flammable, easy to install, available in both rolls and sheets. The advantages of this type of insulation are lightweight, durable, cost-effective and suitable for all applications, whether in residential or economic buildings. The disadvantage is that when ignited, it produces toxic gases which are harmful to the respiratory system if inhaled. Prices start at 200-250 baht per square meter. 2. Polyurethane Foam For short, PU foam. It is a foam injection technology to prevent heat. They are soundproof, waterproof, leak proof and moisture proof. Suitable for the industrial factory that have problems with cooling. The advantage is that it can be sprayed right next to the roof. It has low heat transmission and high efficiency. Easy to install. Choosing to use PU foam insulation is another way to save energy, as it is an insulator that prevents heat and controls the cooling capacity of the air conditioner. It helps to save electricity costs, but the disadvantage is the same as the fiberglass. When ignited, it produces a toxic gas, but does not spread and has a low melting point. If exposed to extremely hot temperatures, it may change the condition. They are more expensive than other types of insulation. Prices start at 400 baht per square meter. 3. Polyethylene Most people referred them as PE foam. It is a thick, soft sheet insulation with a thin foil coated on the surface of another layer. It has good heat resistance, light weight and impact resistance. It is also resistant to corrosion. It is another form of insulation that has been chosen to be used in the house and industrial factory. It is often seen in department store roofs and under metal sheets where this type of insulation is attached under the roof sheet. The advantage is that it is cheaper than other types of insulation. The disadvantage is that when ignited, it will lose its condition instantly and become charcoal, but it will not spread. Prices start at 150-200 baht per square meter. 4. Cellulose Insulation made from pulp mixed with glue. It can be sprayed only on the ceiling and under the roof.It is an eco-friendly material processed with the mineral, insect-proof and anti-mold ingredients. It has properties that can prevent heat and sound-proof. The advantage is that the thickness of the pulp sprayed can be chose by your desired. (the thicker the better) It does not spread fire, no toxic additives, safe for the environment, no carcinogenic substances and can be used for more than 10 years. The downside is that it's quite expensive. It is not resistant to much water and is quite difficult to dismantle. Because it is an adhesive mixed with pulp, it cannot be recycled. Prices start at 300 baht per square meter. With all of the above, a simple rule when choosing insulation is to look at the ability to insulate heat, soundproof, waterproof, and safe for health including the thickness of the insulation as well. This will allow us to choose the insulation according to the performance. However, you should be consulted with a specialist to help decide on the insulation that is suitable for your home and budget.