Passive Cooling Double Roof House

Passive solar design takes advantage of a building s site climate and materials to minimize energy use.

Passive cooling double roof house.

This is a fascinating house in leyte philippines that is passively cooled using a number of unique methods including a double roof a strategy for shading south and north walls in low latitudes using the roof and double walls on the east and west for shading. Windows are often left open to take advantage of natural cooling and walls are easily shaded. Passive cooling is free unlike air conditioning which is expensive to install and run. Using heat storing materials such as concrete to absorb heat.

Roofs however are difficult to shade and floors are a source of constant heat gain through conduction and convection with only limited cooling contribution to offset it. Passive cooling works by. 2 this house has no intake to the north plenum above grade. Incorporate a double roof structure separated by an air cavity.

A well designed passive solar home first reduces heating and cooling loads through energy efficiency strategies and then meets those reduced loads in whole or part with solar energy. And extend the roofline to shade exterior walls and create shaded outdoor living spaces. Insulation thermal mass cross flow ventilation passive cooling. There may be several causal factors in this.

Use cross ventilation or ridge vents to ventilate the air cavity between the roofs. Reflective and radiative processes are the methods used to decrease heat gain by facilitating the elimination of excess heat in a building s interior to maintain a comfortable environment. Using shade and insulation to keep heat out of your home in summer. Hello i am andy lee graham ceo of.

Using breeze and air movement inside your home to keep you cool. Because of the small heating loads of modern homes it is very important to avoid oversizing south facing. This may seem like a tall order but the seasonal position of the sun conveniently serves this end. The passive cooling technique is one of the innovative practices and technologies that provide buildings with comfortable conditions through natural means.

Passive heating and cooling in homes is simply a matter of determining where the sun exposure is and trying to capture and keep as much of that heat as you can in the winter while keeping it out in the summer. Apr 7 2020 research on tropical cooling of homes. Summary this paper describes passive cooling effect of double roofing system with rainwater spraying. Insulation is critical to passive cooling particularly to the roof and floor.