Remember “Jalousie” windows? These windows made up multiple panels of long, angled glass panes have been relegated to rare use in sun-porches in the US. But, the use of Jalousie windows is ubiquitous throughout Southeast Asia and South-America. This is due to the fact that they are cheap, adaptable, and very easy to repair. In poorer nations, these considerations greatly overshadow their inherent problems. The fact that they cannot seal and have poor visibility is of little concern where repair is common and heating is unnecessary. With the growth in their economies and a cultural push to ‘westernize’, many homes are slowly being renovated. However, their original construction makes this difficult.
One problem comes from the attempt to use window insect screens . Standard windows are still prohibitively expensive and because of a lack of standard construction techniques, are generally not available in the sizes needed. The original Jalousie windows cannot accept interior screens because of their inherent design and clearance problems. Exterior screens have clearance problems as well. And due to the common use of exterior window bars for security, installation/removal would be almost impossible.
Example: Philippine homes do not use screened windows. The people usually describe this as the “open” house concept. But, people want westernization, modern conveniences. And, hardware stores are now beginning to sell screening products. Unfortunately, Philippine Jalousie windows are utilized in old concrete sash designs which cannot be easily fit with screens. Operational hardware and curved sashes in the way. Exterior security bars do not allow screen installation.
SOLUTION: Produce screening system for DIY retrofit of windows. The secret is a surface-mount system on interior wall of house. Allow screen to be ‘opened’ to access window controls. Screen is opened by sliding up-down or left-right in mounting channels, depending on installation. The solution is very simple, but does not yet exist in the market.
DETAILS:
1. Parts: common nylon screen, Standard anodized replacement screen frame and corners, screen gasket, simple flat molded-plastic handles, small 1/4″ machine screws for handles, aluminum stock for casting.
2. Cast/machine aluminum, surface-mountable, “channel-glide” bracket. Brackets mount around windows on flat surface around any rounded sash. Channel holds screen in place, channel holds nylon-nap gasket for sealing, channel has flashing strip on back with pre-drilled holes for surface-mounting around window.
3. One side of window has Modified bracket. Modified Brackets mount around windows on flat surface around any rounded sash. Bracket holds nylon-nap gasket for sealing, channel has flashing strip on back with pre-drilled holes for surface-mounting around window. However, bracket does not hold window into place- it is missing “channel-glide” overhang portion. Screen slides completely over top of it. MARKETING POINTS:Screen system keeps bugs out. Modified channel and handle allows screen to be easily shifted up or to the side to allow access to window hardware; Modified channel maintains seal while allowing for easy removal if damaged. Surface-mount system allows for use around existing installations, including barred windows. When screen is installed, screw-heads are hidden by screen frame for aesthetics. All-aluminum construction allows for easy trimming to length.
July 23, 2009 at 1:26 am
Hello. I live in the Philippines – where can i buy this type of screen?
July 23, 2009 at 2:22 am
I know you can by bulk screen and basic hardware at ACE Hardware in SM Mall, Cebu. But, my retrofit system unfortunately only exists on paper. If only I had the money to start a company..
I’ve heard that window screens are becoming more popular now. If you contact some of the major home builders (like the ones making those expensive Italian-style homes advertised in Gaisano Mall), they might be able to give you a lead where to find screen systems. Good luck.
June 6, 2012 at 4:33 am
we had those back in early 90s when my parents bought their first house.
it wasnt sliding screen. but there were a small opening, more of a casement type which you could just let your hand slide in to reach the controls.
June 6, 2012 at 6:43 am
Shoot! Sounds close to what I needed. Would have like to seen that system for sale somewhere.
May 13, 2013 at 6:57 pm
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Screen System- Asian Market | Cervete. Most Impressive!
June 15, 2013 at 4:00 am
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May 1, 2014 at 7:42 pm
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June 15, 2014 at 1:18 am
This design could be simplified by using “ports” in the insect screen to allow access to the window hardware/opening handle:
http://www.ebay.com.au/itm/FLYSCREEN-PORTS-FOR-ACCESS-TO-WINDOW-LOCKS-THROUGH-FLYSCREENS-/290796499981
June 15, 2014 at 7:37 pm
I thought of frame ports first, but it made the flimsy screen frame even ‘flimsy-er’, I’ve never seen anything clamped to the screen material itself before. Plastic screening wouldn’t hold-up to the constant tugging from use. maybe that’s why it hasn’t caught on. But, this might work on metal screening. Be interested to try it on metal. If it works and metal screening is available in these areas, it would be perfect alternative. -Cerv.
June 15, 2014 at 11:27 pm
I was dubious at first, but was pleasantly surprised with the result! The screen material is fibreglass set into aluminium screen. The screen is 1200mm x 1200mm and the addition of the 2 ports has not lessened the strength of the screen and is definitely not flimsy at all. The ports are 2-piece, placed either side of the screen material, hammered gently together, then the screen material is cut around the interior frame of the port.
Here is a link to the screen I constructed using 2 ports for access to the casement window opening handles. This has been in use for 9 months with the windows being opened almost daily and there is still no weakness in the screen.
https://picasaweb.google.com/108357228317320289263/Screen?authuser=0&feat=directlinks
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Surface-Mountable Window Screen System- Asian Market | Cervete