Your attic is one of the main reasons why your house is hot. Roofs in the Philippines are mostly made of very thin steel sheet called "long span", and it is a highly-conductive material. When the sun hits your roof, it absorbs the heat and transfers it to the inside, directly to the attic of your house. The attic is the area between the roof and the ceiling of the highest floor. What does your attic do to this heat?
Why is my second floor hot?
Your attic transfers that heat downwards into the the second floor of your house. To add to this, the principle of convection states that hot air will naturally rise and cold air will naturally go down. These are the reasons why it is hotter in the second floor compared to the ground floor. The bad news, your second floor is usually where you spend most of your time in. It is also where you sleep!
What can I do?
You can replace your roof into a material that is not as conductive as a steel. You can also add insulation under your roof. But these will be very expensive for you.
The easiest and most practical way to cool your attic is to allow it to vent the heat outdoors, instead of into the house, by providing some holes or vent to your ceiling eaves. That is why the ceiling eaves under the roof of BluHomes Breeze, a nature-friendly townhouse development in Amparo Caloocan, have slotted holes on them, to allow these heat to escape from the attic to the outside environment.
What are the benefits?
This attic ventilation will significantly reduce the heat inside your attic and, most importantly, will make your house cooler and more comfortable. You will be able to stay in your room longer without air conditioners. Your house will be cooler, literally.
With a more comfortable house, you may lessen the use of air conditioners and electric fans, and your electric bills will go down and give you more savings. And with lower use of energy, it will lower also your carbon footprint to nature. You and your home will be nature-friendly.
Will these holes look nice on my house?
Yes. Check out BluHomes Breeze in Amparo Caloocan and how they incorporated this attic ventilation into the design of their house. Also, people will not notice these holes from afar, especially if the facade of your house is eye-catching!