Our windows are one of the main sources of heat inside our house. It is the weakest part the the "building envelope," which is the term used by engineers and architects to refer to the exterior shell of the house, particularly the roofs and walls, that are supposed to protect us from the outdoor environment. It is the easiest way for the heat of the sun to enter the house. The simplest way to cool our house significantly is by selecting the most efficient window covering.
BluHomes Breeze, a townhouse development in Amparo Caloocan, uses White PVC Horizontal Window Blinds for their window coverings to cool the house passively for 4 reasons.
1. It is color white
White is the coolest color among all colors. The lighter the color of a material, the less heat is absorbed by the material and the cooler the material becomes. When sunlight hits the white blinds, instead of absorbing the heat and letting it penetrate the house, it reflects the heat back to the outside.
2. It is PVC material
Plastic is considered as a low-conductive material. Conductivity is a property of a material that measures its ability to let heat pass through its body. Steel is highly conductive, that's why the steel spoon is hot when we use it for cooking. The less conductive the material is, like PVC, the less heat will transfer from one end to another. This means that the heat on the outdoor side of the window blinds is not being passed through the material and into the interior of the house.
3. It blocks the sun
Since it is horizontal, the blinds can be manually adjusted to control the amount of sunlight that you want to enter inside the house. You can totally or partially block the direct sunlight from entering the house with the blinds, thus giving you full control of the amount of light and heat you allow to enter your house.
4. It allows air to enter
When there is no air movement inside the house, you feel hotter. Wind that passes by your body makes you feel cooler because the wind pushes away the humidity around your body that makes you feel hot. Unlike curtains and shut-off blinds, horizontal window blinds can block the sunlight and yet allow for the air to enter the house, making the house cooler and more comfortable.