A Japanese logistics company painted the rooftops of its warehouses with Thermal Barrier Paint to cool indoor temperatures for perishable goods storage. Temperature data loggers showed the painted roof surface was 19°C cooler, the roof backside was 12.5°C cooler, and indoor temperatures dropped by 5°C compared to an unpainted warehouse. This allows the company to increase revenue by providing temperature-controlled storage and helps offset carbon emissions.

1. Thermal Barrier Paint
cools warehouses
Success story, August 2009
Japan: logistics group increases customer
base & perishable goods storage safety by
painting warehouse rooftops.
The reality of global warming means average
temperatures are rising yearly, while hot weather lasts
longer. Perishable goods are particularly sensitive to heat
and mold. Air quality and temperature during storage
periods has to be controlled.
A Japanese logistics company with a country-wide
network of warehouses has chosen Thermal Barrier Paint
Above: 2,200 SQM warehouse before painting. to upgrade its facilities’ capabilities. The company started
to paint the metal sheet
rooftops of its buildings Insulation improvement:
with Thermal Barrier Roof surface: -19ºC
Paint. Temperatures
indoors instantly drop- Roof backside: -12.5ºC
ped by up to 5°C as most Indoors: -5ºC
heat is now reflected.
Additional revenue is expected from clients looking for
controlled temperature warehousing.
The initiative also helps fighting Global Warming: the eco-
friendly paint is certified by the Japanese Paint
Association to reduce CO2 emissions and offset Carbon
Above: metal sheet rooftop painted with two coats.
Credits..
Caption: workers applying paint with rollers.
Temperature difference recorded by data loggers between Thermal Barrier Paint key data:
ºC
painted / unpainted warehouse, 18/08/09 to 25/08/09  reduces indoors temperature by 5°C
Roof surface
Roof surface Roof back side
Roof backside Indoors
Indoor  reflects 94.6% of UV, U-Value 0.14 W/m2k
 certified to reduce CO2 emissions
 easily applicable on all surfaces, (no primer)
 no special equipment or training required
 water-based, VOC-free, eco-friendly
 more than 30 colors available
18/08 19/08 20/08 21/08 22/08 23/08 24/08 25/08
Interchange 21 Bldg., 32 nd Fl., 399 Sukhumvit Road, North Klongtoey, Wattana, Bangkok 10110, Thailand
P: +66 (0) 2660 3601 F: + 66 (0) 2660 3881 E: info@tradinggreenltd.com W: www.tradinggreenltd.com

2. Thermal Barrier Paint
cools warehouses
Success story, August 2009
Project outline. Photos of temperature data loggers:
Thermal Barrier Paint was applied on folded-steel
plate rooftop of a reference warehouse, to be ① Roof surface
compared with another identical ones located next
to it.
Rooftop surface: 2,216 SQM
Performance recording method.
Measure the change in temperature before / after
painting.
Location of temperature data loggers:
① Roof surface
② Roof back side
③ Indoors ambient temperature
④ Outdoors ambient temperature
② Roof back side
①
②
③ 15m
1.3m
④
Chart 1: vertical view
② ①
③
③ Indoors ambient ④ Outdoors ambient
Chart 2: horizontal view
temperature temperature
Interchange 21 Bldg., 32 nd Fl., 399 Sukhumvit Road, North Klongtoey, Wattana, Bangkok 10110, Thailand
P: +66 (0) 2660 3601 F: + 66 (0) 2660 3881 E: info@tradinggreenltd.com W: www.tradinggreenltd.com

3. Thermal Barrier Paint
cools warehouses
Success story, August 2009
Painting process, step by step.
2 coats of white color were applied with rollers.
Reference warehouse outside view before painting. Second layer being applied.
Second coat is applied 1 hour after first. Painted rooftop.
2nd coat
1st coat
Interchange 21 Bldg., 32 nd Fl., 399 Sukhumvit Road, North Klongtoey, Wattana, Bangkok 10110, Thailand
P: +66 (0) 2660 3601 F: + 66 (0) 2660 3881 E: info@tradinggreenltd.com W: www.tradinggreenltd.com

4. Thermal Barrier Paint
cools warehouses
Success story, August 2009
Comparison in °C between painted / unpainted warehouse indoor ambient temperature
Ambient outdoor temp. Unpainted indoor Painted indoor
34
32
30
28
26
24
22
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
Comparison in °C between painted / unpainted warehouse roof surface temperature
Ambient outdoor temp. Unpainted roof surface Painted roof surface
60
55
50
45
40
35
30
25
20
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
Interchange 21 Bldg., 32 nd Fl., 399 Sukhumvit Road, North Klongtoey, Wattana, Bangkok 10110, Thailand
P: +66 (0) 2660 3601 F: + 66 (0) 2660 3881 E: info@tradinggreenltd.com W: www.tradinggreenltd.com

5. Thermal Barrier Paint
cools warehouses
Success story, August 2009
Comparison in °C between painted / unpainted warehouse roof backside temperature
57
Ambient outdoor temp. Unpainted roof backside Painted roof backside
52
47
42
37
32
27
22
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
Temperature differences summary in °C between painted / unpainted warehouse
20
Roof surface Roof backside Indoor
18
16
14
12
10
8
6
4
2
0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
Interchange 21 Bldg., 32 nd Fl., 399 Sukhumvit Road, North Klongtoey, Wattana, Bangkok 10110, Thailand
P: +66 (0) 2660 3601 F: + 66 (0) 2660 3881 E: info@tradinggreenltd.com W: www.tradinggreenltd.com