Expanding Heatstroke Prevention Products for Summer Heat - Launching "Thermobarrier Sky Method" for Roofs
Ishizuka Co., Ltd. is launching "Thermobarrier Sky Method," a heat-shielding sheet for roofs, from May to combat intense summer heat and rising energy costs. Made with high-purity aluminum, it reflects approximately 97% of radiant heat, contributing to heatstroke prevention and energy saving in factories and warehouses.
📋 Article Processing Timeline
- 📰 Published: May 8, 2026 at 02:50
- 🔍 Collected: May 7, 2026 at 18:31
- 🤖 AI Analyzed: May 7, 2026 at 19:08 (36 min after Collected)
Ishizuka Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; President: Koji Kumagai; hereinafter referred to as "the Company"), which is committed to improving workplaces and environments with plastic products such as vinyl curtains, will begin sales of its roof-oriented heat-shielding solution "Thermobarrier Sky Method" from May this year.
In recent years, against the backdrop of normalized intense heat and soaring energy costs, the importance of "heat countermeasures" and "energy-saving measures" in factories, warehouses, and commercial facilities has rapidly increased. In particular, radiant heat entering from the roof is a major factor causing the risk of heatstroke for employees, decreased air conditioning efficiency, and deterioration of the working environment, also affecting safety and productivity.
To address these challenges, the "Thermobarrier Sky Method" provided by our company is a construction method that significantly reflects radiant heat from the sun and suppresses the rise in internal building temperature by applying a heat-shielding sheet made of high-purity aluminum material to the roof surface. This simultaneously achieves heatstroke prevention, improved work efficiency, reduced electricity costs by alleviating air conditioning load, and increased employee satisfaction.
"Thermobarrier Sky Method"
■ Features of "Thermobarrier Sky Method"
・High heat-shielding performance: Reflects approximately 97% of radiant heat, suppressing indoor temperature rise.
・Energy-saving effect: Reduces electricity costs by cutting down on air conditioning usage.
・Excellent workability: Can be installed without stopping factory operations, achieving short-term construction.
・Wide range of applications: Compatible with factories, warehouses, logistics facilities, commercial facilities, etc.
・Uses a sheet certified for fire spread based on the Building Standards Act (Certification No.: DR-2073).
■ "Thermobarrier Sky Method" - A new construction method that solves the problems of heat-shielding paint.
By using a special sheet (Sky Sheet) made of 99% pure aluminum foil with excellent radiant heat reflection performance, approximately 97% of radiant heat from the sun is cut. This suppresses the temperature rise of folded plate roofs, significantly reduces radiant heat from folded plate roofs into the building interior, and suppresses indoor temperature rise.
With heat-shielding paint, variations in heat-shielding effect can occur due to uneven coating caused by the skill of the workers. However, the "Thermobarrier Sky Method" exhibits a uniform heat-shielding effect regardless of the skill level of the workers or the weather conditions during work.
■ About the heat-shielding effect
When installed on the roof of a stationery manufacturing factory, a temperature difference of 11.3℃ was observed before and after installation.
About the heat-shielding effect
■ Main uses and purposes
・Heatstroke prevention in factories and warehouses.
・Improvement of cooling efficiency in factories and warehouses.
・Improvement of employee satisfaction in factories and warehouses.
・Improvement of work efficiency in factories and warehouses.
・Measures against deterioration of stored goods caused by heat.
・Also effective for rain leakage prevention.
■ Pricing information
We will submit a quotation after an on-site survey.
*If you have on-site photos and an overhead view, we may be able to provide a rough estimate before the on-site survey, so please consult us.
*On-site surveys are provided free of charge.
■ Estimated construction period (from start of work)
Construction area 50㎡: Approximately 2-4 days
200㎡: Approximately 4-7 days
500㎡: Approximately 7-14 days
1,000㎡: Approximately 12-16 days
2,000㎡: Approximately 20-30 days
*Please note that the above may be extended depending on construction environment, folded plate type, weather, and other conditions.
*This is the period from the start of work. It does not include the preparation period for materials.
*The Sky Method can be installed without removing the existing roof, so work can be done without stopping factory or warehouse operations.
■ Other Thermobarrier series product lineup
(1) Thermobarrier Fit
By covering machinery and furnaces in factories with Thermobarrier Fit, the heat emitted from them is blocked, improving harsh working environments.
There are cases where covering a cupola (iron melting furnace) with a surface temperature exceeding 200℃ with Thermobarrier Fit resulted in a surface temperature of 25℃, and no heat was felt during work in the vicinity. Certified non-combustible by the Minister of Land, Infrastructure, Transport and Tourism (NM-5169).
https://ishizuka-net.co.jp/contents/detail/458/
(2) Thermobarrier S
This is a sheet with both insulation and radiant heat reflection properties, made by laminating aluminum foil on both sides of air cap. By installing it on ceilings, walls, and floors, it prevents indoor temperature rise by reflecting radiant heat from outside in summer, and retains indoor warmth by reflecting internal heat inwards in winter. Certified non-combustible by the Minister of Land, Infrastructure, Transport and Tourism (NM-2805).
https://ishizuka-net.co.jp/contents/detail/557/
Reference)
We will provide reference data on the recent situation of intense heat and its potential impacts.
■ Average number of intense heat days in 11 cities nationwide *Calculated from past data by the Japan Meteorological Agency
2015 (Heisei 27): 7.3 days
2024 (Reiwa 6): 28.5 days (approximately 4 times increase in 10 years)
*Intense heat day: A day when the maximum temperature reached 35℃ or higher.
■ May-September
In recent years, against the backdrop of normalized intense heat and soaring energy costs, the importance of "heat countermeasures" and "energy-saving measures" in factories, warehouses, and commercial facilities has rapidly increased. In particular, radiant heat entering from the roof is a major factor causing the risk of heatstroke for employees, decreased air conditioning efficiency, and deterioration of the working environment, also affecting safety and productivity.
To address these challenges, the "Thermobarrier Sky Method" provided by our company is a construction method that significantly reflects radiant heat from the sun and suppresses the rise in internal building temperature by applying a heat-shielding sheet made of high-purity aluminum material to the roof surface. This simultaneously achieves heatstroke prevention, improved work efficiency, reduced electricity costs by alleviating air conditioning load, and increased employee satisfaction.
"Thermobarrier Sky Method"
■ Features of "Thermobarrier Sky Method"
・High heat-shielding performance: Reflects approximately 97% of radiant heat, suppressing indoor temperature rise.
・Energy-saving effect: Reduces electricity costs by cutting down on air conditioning usage.
・Excellent workability: Can be installed without stopping factory operations, achieving short-term construction.
・Wide range of applications: Compatible with factories, warehouses, logistics facilities, commercial facilities, etc.
・Uses a sheet certified for fire spread based on the Building Standards Act (Certification No.: DR-2073).
■ "Thermobarrier Sky Method" - A new construction method that solves the problems of heat-shielding paint.
By using a special sheet (Sky Sheet) made of 99% pure aluminum foil with excellent radiant heat reflection performance, approximately 97% of radiant heat from the sun is cut. This suppresses the temperature rise of folded plate roofs, significantly reduces radiant heat from folded plate roofs into the building interior, and suppresses indoor temperature rise.
With heat-shielding paint, variations in heat-shielding effect can occur due to uneven coating caused by the skill of the workers. However, the "Thermobarrier Sky Method" exhibits a uniform heat-shielding effect regardless of the skill level of the workers or the weather conditions during work.
■ About the heat-shielding effect
When installed on the roof of a stationery manufacturing factory, a temperature difference of 11.3℃ was observed before and after installation.
About the heat-shielding effect
■ Main uses and purposes
・Heatstroke prevention in factories and warehouses.
・Improvement of cooling efficiency in factories and warehouses.
・Improvement of employee satisfaction in factories and warehouses.
・Improvement of work efficiency in factories and warehouses.
・Measures against deterioration of stored goods caused by heat.
・Also effective for rain leakage prevention.
■ Pricing information
We will submit a quotation after an on-site survey.
*If you have on-site photos and an overhead view, we may be able to provide a rough estimate before the on-site survey, so please consult us.
*On-site surveys are provided free of charge.
■ Estimated construction period (from start of work)
Construction area 50㎡: Approximately 2-4 days
200㎡: Approximately 4-7 days
500㎡: Approximately 7-14 days
1,000㎡: Approximately 12-16 days
2,000㎡: Approximately 20-30 days
*Please note that the above may be extended depending on construction environment, folded plate type, weather, and other conditions.
*This is the period from the start of work. It does not include the preparation period for materials.
*The Sky Method can be installed without removing the existing roof, so work can be done without stopping factory or warehouse operations.
■ Other Thermobarrier series product lineup
(1) Thermobarrier Fit
By covering machinery and furnaces in factories with Thermobarrier Fit, the heat emitted from them is blocked, improving harsh working environments.
There are cases where covering a cupola (iron melting furnace) with a surface temperature exceeding 200℃ with Thermobarrier Fit resulted in a surface temperature of 25℃, and no heat was felt during work in the vicinity. Certified non-combustible by the Minister of Land, Infrastructure, Transport and Tourism (NM-5169).
https://ishizuka-net.co.jp/contents/detail/458/
(2) Thermobarrier S
This is a sheet with both insulation and radiant heat reflection properties, made by laminating aluminum foil on both sides of air cap. By installing it on ceilings, walls, and floors, it prevents indoor temperature rise by reflecting radiant heat from outside in summer, and retains indoor warmth by reflecting internal heat inwards in winter. Certified non-combustible by the Minister of Land, Infrastructure, Transport and Tourism (NM-2805).
https://ishizuka-net.co.jp/contents/detail/557/
Reference)
We will provide reference data on the recent situation of intense heat and its potential impacts.
■ Average number of intense heat days in 11 cities nationwide *Calculated from past data by the Japan Meteorological Agency
2015 (Heisei 27): 7.3 days
2024 (Reiwa 6): 28.5 days (approximately 4 times increase in 10 years)
*Intense heat day: A day when the maximum temperature reached 35℃ or higher.
■ May-September