How to Cool a Room Facing the Sun Install heat-reflecting film on the windows that face the sun. Choose drapes that have a white side that faces out the window. Build or plant shady spots outside the part of the house that faces the sun. Open windows and doors when it’s cool out to encourage air flow in the house. Click to see full answer. Simply so, how do you cool a hot room? How to Cool Down a Room Close the Windows. When the air-conditioning is on the fritz you should keep the sun from coming through your windows. Close the Doors. Ice and a Fan. Cotton Sheets on the Bed. Use Those Ceiling Fans. Focus on You. Use Your Exhaust Fans. Whole House Fans are Amazing. Similarly, how can I cool a room with a large window? Using drapes or curtains to cover windows during periods of direct sunlight will help keep the room cooler. Window treatments with a light-colored or reflective backing work best. Adjustable blinds allow you to control and direct sunlight into room. Completely closed, they provide a light and heat barrier. Beside above, how do I stop my West facing windows from getting hot? Awnings can reduce heat gain through an east or west window by 77%. However, to be this effective, the awning has to slope down over the top two thirds to three quarters of the window, depending on latitude. Slatted awnings let you see outside through the covered area, but they provide less shade.How do you keep a glass room cool?Select a window style that will allow greater air flow – louvres are a great option for tropical climates. During the day, close blinds or curtains to keep the heat out and consider investing in blackout curtains. In the early evening as temperatures cool, open windows, blinds and heavy curtains to let the cool air in.