Ecosulation: Easy to install radiant barrier insulation
It gets hot inside buildings, especially inside industrial sheds in the summers. In India summers can be particularly harsh and unforgiving. If you are concerned about reduced worker efficiency during summer months, roofing insulation is the answer. Instead on spending money on cooling the building it is better to install radiant barrier insulation which naturally reduces radiant heat.
Ecosulation is a tough, fireproof reflective foil which acts as a radiant barrier by effectively reflecting radiant heat emitted by the sun. It makes the work environment in a building surprisingly comfortable. Ecosulation can be conveniently retrofitted in existing buildings and can also be easily installed in a new construction making it the best solution for insulating metal buildings in India.
Radiant heat: Why it feels hot on a sunny day?
Ever wonder why it feels so hot in the open on a sunny day? The feeling of discomfort is not because of the temperature of the air. It is because our body absorbs invisible radiation emitted by the sun and heats up. It is a natural reaction to look for shade to escape from the sun. Standing under a tree makes us feel better, not because the temperature is less in the shade, it is because the leaves dissipate a part of the radiant heat and prevent it from striking us.
Objects radiate heat: Why it feels hot even in the shade?
Radiation travels in a straight line and heats up everything that absorbs it. Hot objects radiate a considerable amount of heat and end up heating other objects. The roof and the walls of a building absorb radiation, heat up, and in turn radiate heat to people inside the building. This is why it feels hot even under the shade of a roof. The building might be well ventilated so the air temperature is more or less same as the temperature outside. The problem is the radiation of heat from mainly the roof.
Radiant barrier: Reflects up to 95% of radiation striking the roof leading to cooler interiors
A radiant barrier is essentially a foil which has high reflectivity and low emissivity. In other words, like a mirror, it reflects most of the radiant heat that strikes it and lets only a small amount pass. White paint and metallic surfaces can also do the trick though they are hard to maintain on roof surfaces. A radiant barrier is the best type of thermal insulation when it comes to stopping radiation. Generally, a radiant barrier is installed under the roof with an air gap. Air, being a bad conductor reduces heat transfer by conduction as well.
These two pictures were taken in two adjacent, similar factory shed of Global Automotive Components located in Faridabad, India. We used a laser thermometer to measure the temperature of the roof. The picture on the left is when we measured the temperature of the metal roof in a shed where Ecosulation was not installed. The one on the right shows the temperature of an adjacent similar building where Ecosulation was installed. Both pictures were taken within a few minutes and demonstrate the effectiveness of a radiant barrier. There is a 12º C reduction in the roof temperature which has led to a considerable increase in comfort levels inside the building leading to increased worker efficiency. For more details you can refer to the Global Automotive Components case study in our client testimonials page. During winters around 50 to 70 % of heat loss is due to radiation through the roof of a building. Ecosulation helps in keeping a building warm during winters. Common insulation materials like fibreglass and rockwool cannot stop radiant heat as radiation can even travel through vacuum. The only way effective way to stop radiation is to install a radiant energy barrier to block the heat.
The Occupational safety and health administration of the US government recommends installation of radiant shields as an engineering solution to occupational heat exposure.