WINDOWS – Tropical Patterns
TYPICAL WINDOW SIZES
Standard heights of window is 600mm. Windows usually installed from 950mm above floor height as this is just above standard working height of 900mm Side swinging windows/openings are good for catching breeze, but no more than 600mm wide.
REDUCED OR NO GLASS USE IN WINDOWS AS IT MOSTLY CAUSES INTERNAL HEATING AND REDUCED AIR FLOW
Glass traps heat so has little place in tropical housing. Security concerns can be eliminated with screens, insects via fly screens and high winds via shutters. Tropical living is about outdoor indoor movement and glass acts as a barrier to this life.
REDUCE WINDOW USE ON WEST AND EAST SIDES
The east and west side of the house receive the majority of the sunlight, so either eliminate windows on these sides or screen and shade them.
FULL AREA OPENINGS SUCH AS LOUVRES AND SIDE HUNG CASEMENT ARE PREFERABLE OVER SLIDING SASH AND HOPPER THAT RESTRICT AIRFLOW
Even very small breezes can make you feel cool in hot conditions,so encourage these with windows that help direct and trap breezes.
USE CASEMENT WINDOWS ON WINDWARD SIDE TO CATCH AND DIRECT WIND AND LOUVRES ON LEEWARD SIDE
Casement windows are hinged on the side and pen out to form a “wing” to trap passing air. Leeward louvres let the air move through without impedance.
LOUVRES ON WINDWARD SIDE CAN BE USEFUL FOR DIRECTING BREEZES IN A ROOM
Windward louvres are also useful for directing wind through a room, particularly in combination casements to trap any passing breezes.
ALWAYS SHADE WINDOW OPENINGS, ESPECIALLY IF GLASS
The most important rule for windows in the tropics is to shade them to reduce heat gain into the house.
STEEL FRAME WINDOWS ENCOURAGE HEAT INTO THE HOUSE SO PREFERENCE IS FOR WOODEN OR OTHER INSULATED MATERIAL
Steel is a great conductor of heat and will draw heat into a house, particularly in combination with glass.
TOP OPENING, WOODEN STORM SHUTTERS CAN BE USED TO SHADE AS WELL AS USE IN HIGH WINDS
Top hinged shutters with adjustment can be set at a great range of openings to accommodate high summer sun, low winter sun and closed for storm protection.
FLYSCREENS RESTRICT AIRFLOW UP TO 40% SO CONSIDER RETRACTABLE ONES TO MAKE BEST USE OF NON INSECT TIMES
Fitted fly screens are great for an insect free house, but restrict air flow, so ensure they are easily removable when you want maximum air flow.
FOR WESTERN WALL WINDOWS, MAKE SMALL, IDEALLY SLIT WINDOWS AND USE SCREENS OR PLANTS TO REDUCE DIRECT SUNLIGHT
Protect your house from intense afternoon sun with small window areas that allow some day, and mostly night ventilation.
WINDOWS FACING WITHIN 20 DEGREES OF DUE NORTH OVERHANG RATIO NOT LESS THAN –
.5 Ratio is “X” to “Y” where “X” is from wall to outside of shad and “Y” is horizontal bottom of shade to bottom of window.
WINDOWS FACING OUTSIDE 20 DEGREES OF DUE NORTH OVERHANG RATIO NOT LESS THAN –
2.0 Ratio is “X” to “Y” where “X” is from wall to outside of shad and “Y” is horizontal bottom of shade to bottom of window.