Revised: General Catalog 2023/05/18

Disaster Prevention Eco-windows
General Catalog
For typhoon, crime, energy loss and noise control!
Synergistic effect of eco-friendly window attachments for disaster prevention + hollow polycarbonate

NPO ESCOT for Renewable Energy & Environmental Technologies development
Zip code 277-0011 4-17 Azumakami-cho,Kashiwa-city Chiba-pref.
ser.kashiwa@gmail.com
https://npo-escot.org
Production support ⇒+81-80-4365-0861

2023/10/19

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1

Innovative investment-based eco-productsProtects window glass from physical impact from the outside.
At the same time, the high thermal insulation performance reduces energy loss through windows by
approximately 50%.
＜Winner of the Monozukuri Idea Grand Prize
Reason: Low initial investment and high effectivenesscan be expected.
＜Received the "Eco-Company Award
Eco-evaluation of the Escott office that was installed＜Kashiwa City Hometown Tax Returns >Registration<Patent rights acquired
Novelty and uniqueness evaluation

Installation is DIY-able and requires no special tools.
Polycarbonate is a high-strength, long-lasting, and flame-retardant material used in bulletproof glass,aircraft, and bullet train windows.
Hollow polycarbonate applied to the exterior surface of the glass protects the window from all physicalimpacts, including typhoons, hail, and wind gust crimes.

It also has high heat insulation performance, reducing the amount of heat going in and out of the window
by about half, resulting in energy savings of about 30%.
In addition, the hollow polycarbonate provides a noise reduction effect of 16db, reducing noise stress forresidents living near major roads, airports, and other noise sources.
Hollow polycarbonate boards (182 cm x 91 cm, 4 mm thick) can be purchased for around 2,000 yen at local
home centers, etc., and can be cut to window size with a cutter knife.
Easy to remove after installation and easy to clean.

Instructions on how to remove the base plate for relocation, etc. are included in theinstruction manual.

2023/10/19

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2DIY Installation
Sliding windows: The gap between the window glass and window frame must be at least 9mm.
windowpane
window frame

Outside window and screen
frameswindowpane

9mm

Components of eco-friendly windows
for disaster prevention

9mm+Hollow polycarbonate
4mm thicksetBase plate with boltcoin nut Outer diameter: 30 mm,Thickness: 0.8 mm
Bolt: Thickness=4mm, Length=8mm

Windows can be reinforced doublelayered from the outside.
Aim for one set per 50cmx50cm.

Disaster prevention eco window
installation

Tighten the coin nut withthe convex part toward thebolt.

Drill a hole about 1 cm in diameter in hollow
polycarbonate.
Use a round carving knife or solder when theholes overlap with the ribs.
Holes can be neither too large nor too snooty
in shape.

Base plate with bolt

Silicone on this surface.
and affix it to the glass.
Thread the convex part of the coin nut
through the bolt.
Fix hollow polycarbonate.

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Mounting on window
Step-1. Clean the window glass and measure its length and width. Cut the hollow polycarbonate sheet with a cutter.
(1) Remove oil film and moisture thoroughly with alcohol, etc.
(ii) The size of the window glass is measured from the inside of the packing.
Cut the hollow polycarbonate so that the elongated space is horizontal.
*Vertical use is also possible depending on the window shape.
Caution: Wear gloves, etc., and work without injury.

Step-2. Apply silicone to a window bolt with a pre-set bolt about 10 cm to 15 cm from the corner of the glass surface.
The position of metal fittings can be changed depending on the shape of the window.
Depending on the size, it may stop at two places or one place.

Recommended silicone:
KONISHI CORPORATION Bath BondQ Part No.: #04888

Viewed from theinsidePositioned by pattern paper or other means, the base plate with the bolts set is stretchedover the window glass.
*Slight misalignment can be adjusted with the hole on the hollow polycarbonate plate.

Wait one day for the window bolts to dry after
installation.

Step-3. Drill a hole in the pre-cut hollow polycarbonate board with a nail or similar tool, thread it through the window bolt,
and secure it with a coin nut.

(1) Fix one position at a time while checking the position.
*If the ribs (support surface) of the hollow polycarbonate plate are in the wayCut off and widen the ribs with a carving knife (round) or similar tool.
(The larger the hole, the better.)(2) Turn the coin nut clockwise as if rubbing it with the belly of your finger.

2023/10/19
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Done.
Thank you for your hard work!

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Cleaning and removal methods
Easily detachable depending on the season, typhoon, or other weather conditions!
Remove dirt from the gap between the window and the glass and wash the hollow polycarbonate.
(1) Turn the coin nut and remove the hollow polycarbonate plate.
(2) Wash the front and back of the hollow polycarbonate.
(iii) Rinse the cavity with a strong stream of water.
(4) After that, let it dry and then fit it back in.

When you want to refurbish the hardware for disaster-resistant eco-friendly windows due to moving or other reasons.
(1) Remove the window bolt by inserting aspatcherah or similar tool between the bolt
and the glass and rubbing it.

(2) Silicone remains as an adhesive.

Remove the silicone with a scraper, etc.

(4) Wipe with a dry cloth and you are done.

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Disaster Prevention Eco Window Feature MadomefeatureExplanation

flame resistance

Unlike acrylic and other materials, polycarbonate is difficult to flame and burn.

Outer (or both sides) insulation

It can be retrofitted to existing building windows for multilayered reinforcement.

selective lighting
Crime Prevention and DisasterPrevention

soundproofing

Air Layer Adjustment
Reflection angle adjustment

It shades the room in summer and lets in sunlight in winter to brightenand arm the room.
Hollow polycarbonate glass changes the conventional wisdom that glass isbreakable.
Sound reduction effect of approx. 16db.
Sound reduction effect of a house facing a main road about 40
meters away.
Noise reduction by aircraft, etc.

The length of the bolt can be freely selected to adjust the air layer.
The sunlight reflection angle can be changed by adjusting the top, bottom, left andright bolts.
Overhangs are also possible by making the upper bolts longer than the lower ones.

long life

The UV-cut roofing material has almost the same longevity as the building.

high strength

It is the same material as aircraft, bullet train windows, and bulletproof glass.
It is lightweight at 1 kg/m2 and will not damage window rails.

lightweight

Also, the risk of injury from falling is extremely low.
It was also adopted by many condominiums.
It cuts ultraviolet rays so that indoor furniture and floors will not be damaged.

ultraviolet light cutting

Adopted for carton burn prevention in warehouses.
Easy to remove and replace by turning the nut, and can be cleaned or replaced

freedom to dismantle

freely.
Security measures are available. Please contact us.

2023/10/19

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6

Unresolved window breakage measures
How to strengthen glass windows a must
Window cracking problem that cannot be prevented with tape

Shatter is weak in the wind:
In Chiba, shutters were blown off.
According to our research, wind-resistant shutters for typhoon
areas from major manufacturers are limited to wind speeds of
44 meters (1200 pascal).
On the other hand, the wind resistance of window glass in theKanto region is about 48 meters.
In other words, it is resistant to impact from collision ofobjects, but not to wind pressure.
This means that it is weaker than window glass.

Estimation of impact force (f=mv/Δt)
This is the impact force calculation when an 80g steel ball is dropped from a height of 10m.
It exceeds the window breakage limit of 1490N without a panel.
Panel + STS shock-absorbing ring: 106 N
massm

MovementV
speed
brakingLdistance
Impactfforce0.08 kg
10 m/s0.001 m1600.00 N

massm

MovementV
speed
brakingLdistance
Impactfforce163.27 Kgf Weight

0.08 kg
10 m/s
0.015 m106.67 N
10.88 Kgf Weight

Drop test with various shapes of bumps
Spheres, bolts, hinges

Deformation characteristics of hollow polycarbonate due to fine protrusions
It does not break like acrylic, but deforms itself to hold small pieces.

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Estimation for high winds
The risk assessment of falling or dropping of the disaster-resistant eco-friendly windows was performed by wind pressure
calculation.
Prerequisite:■Wind speed 50m/s
Wind direction is assumed to be parallel to the glass surface from horizontal and vertical directions.
Calculated based on a space of 10 mm between the window and the panel thickness of 5 mm (actually 4 mm is used), for a total of 15mm.
Coefficients for concave wind-receiving surfaces are used for the ■ drag coefficients.
■Using air density at an atmospheric pressure of 1000 hPa and an air temperature of 20°C
(1) Wind force from lateral direction
Drag L
Lift force D
Drag coefficient Cp 2.3 Use coefficient of concavity
Lift coefficient CL 0
Air density ρ（kg/m3） 1.19 1000hPa,20°C
Projected area of object relative to flow A (m2) 0.013
Flow velocity m/s 50
Drag force formula L=1/2CpρAU² 4.54 kg・m/s2
Lifting force formula D=1/2CLρAU² 0.00 kg-m/s²
Total 4.54 kg・m/s2(2) Wind force from upward direction
Drag L
Lift force D
Drag coefficient Cp 2.3 Use coefficient of concavity
Lift coefficient CL 0Air density ρ（kg/m3） 1.19 1000hPa,20°C
Projected area of object relative to flow A (m2 ) 0.008
Flow velocity m/s 50
Drag force formula L=1/2CpρAU² 2.93 kg・m/s²
Lifting force formula D=1/2CLρAU² 0.00 kg-m/s²
Total 2.93 kg・m/s2.

Gap 15 mm
Including hollow
polycarbonate
thicknesscold wind blowing
down from thedirection of thewind (esp. fromthe direction ofthe sea)

*Glass surface
haughtiness*In fact, winds from directly beside and directlyabove
Not present in the structure of the building.
Gap 15 mm

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For high wind areas, shock absorbing cushioning material (optional, sold separately)

Absorbs changing wind pressure with its shape
Absorption of flying object collision by crushing

Shape Absorption

13.0mmcollapse absorption

3.2 mm

2.0 mmPrevents convection loss (i.e., energy loss due to air movement and heat transfer in a space)*The space of approximately 12 mm between the window glass and hollow polycarbonate is the maximum valuethat brings out the most thermal insulation effect.

Hollow polycarbonate 4 mm:

Shock absorbing ring

Window glass reinforced construction:(1) Deflection + crushing of 4 mm hollow polycarbonate plate(2) Absorption of wind pressure by deformation of silicone ring(3) Shock absorption by collapsing silicone materialCaution:
A clearance of at least 20 mm from the window glass surface is required for installation.
Therefore, it may not be used with sliding windows, etc.

Optional price: 80 yen/set
Silicone ringM3 20mm stainless steel bolt

2023/10/19

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9

Technology and Patent Rights
Suction force test of suction cup shaped base bolt The only window glass exterior installation

Recessed structure holds silicone material

Silicone material

Made in Japan quality: Precision machining by developing special jigs (domestic manufacturing plant)

Methodology that became patent rights

2023/10/19

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10Adhesive strength and durability of silicone materials
We contacted the manufacturer of the silicone material used to bond the window glass to the window guard hardware.
January 25, 11:35 , Cemedine Adhesive Technology Consultation Center, Mr. Ito 0120-984-053
Questions about aging of silicone materials (oxime type)
Answer ⇒ Valid for about 10 years. Yellowing (yellowing) occurs due to ultraviolet rays, but there is no quality problem.
Please contact the sales office for experimental samples, etc.

January 30, 11:23, 03-6421-7276, Sales Department, Cemedine Co.
Questions about submitting test data on agingAnswer ⇒ They do not have test data. In the exchange of information with house builders, etc., they are saying that it is safe for 10 years.

*Independent strength tests were conducted.
We hung a bucket filled with 10 liters of water on a window bolt with silicone (oxime type) glued to the glass surface and watched its progress.
The results of two experiments showed that the first could be retained for 2.5 days and the second for 7 days.
Left, overall situation; center, immediately after hanging; right, 24 hours later

Safety wire
The following wire hooks were produced to prevent the panels from falling off when they were removed.
Fixed with a window bolt in the lower corner of the panel and the other to the railing.

2023/10/19

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11

Energy loss and experimental values

Energy loss from windows Image illustration (from Ministry of theEnvironment's external data)

Comparison of winter dew condensation conditions with hollow
polycarbonate panel installation
Photo above: NPO Escott Kashiwa Environmental Research InstitutePhoto below: NPO Escotto Oshukucho Kamifuse Test Center

Measured heat return coefficient (w/m2-k) of hollow window guard
Comparison of temperature difference between outside and inside with and without window guards Measured on February 11, 2013
The temperature inside the window with panels remained about twice as warm as the window without panels.

654
Internal/external temperature
difference ib

35 mm glass for inside/outside
temperature difference

21-1

1
8
15
22
2936
4350
57
64
71
78
85
92
99
106
113
120
127
134

0
internal/external temperature difference

2023/10/19

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12Smart lighting characteristics of hollow-harmonica structure
Shading in summer, lighting in winterBlind effect illustration by placing hollow polycarbonate horizontally

Ribs (struts) connecting the front
and back surfaces

Light intensity (w/m2) attenuation test with hollow hamonica structureLight intensity measurement graph by angle of incidence
Blind Effectiveness Test Results
350
300
250
200

Reflection +BlindTransmitted Light Intensity

150100

Shading effect due to blind shape

50001020304050607080

90

ground angle

Comparison of winter lighting conditions by blind structure
Left: Window glass only Right: Reflected light by hollow-harmonica structure2023/10/19

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13

Examples of enforcement in various locations:
Residence of Mr. I in Chiba Prefecture
Tape reinforcement of garage windows

Installation of hollow polycarbonate panels on garage windows
Small windows, so they are installed with only one disaster-resistant eco-friendly window fitting.

Residence of Mr. E, Kanagawa, JapanBay window (upper left)
Push-out window (upper right in photo)
Fixed window above the entrance (bottom photo)2023/10/19

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14

Residence of Mr. N, Fukuoka, Japan
Reinforced with tape in preparation for approaching typhoon

Purchase disaster-resistant eco-friendly window hardware
Hollow polycarbonate outside of tape reinforced window
DIY construction of 4mm

Residence of Mr. U in Shizuoka Prefecture2023/10/19

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