Mandatory compliance with energy-saving standards: Underfloor materials that combine sound insulation and thermal insulation.

[Sample Available!] Direct floor soundproofing substrate with the performance of "L-45"

**Features** - 43mm low floor height ensures sufficient ceiling height - Low floor height allows for good fitting under window frames - Reliable floor sound insulation performance (L-45 certified by a third-party organization) - Easy installation with no need for a base layer, just lay it down - High shock absorption comparable to tatami (approximately G50) Please consider for hotels, condominiums, and apartments. For more details, please check the link to the Iida Sangyo website below. You can request and confirm the following items on the website: - Request for samples - Free download of product CAD data - Viewing of actual installation videos (installation time: approximately 3 hours for 50m²) Adoption examples * Photos of examples can be viewed on the Iida Sangyo website. - A yoga studio wants to open in a commercial building, but sound insulation is necessary due to a tutoring school below. → Ensured sound insulation while maintaining a ceiling height with a low floor of 43mm. No complaints from below. - A request was made to renovate from tatami/straight-laid cushion flooring to hardwood flooring. → Achieved the same floor height of 55mm as tatami, accommodating barrier-free access by applying it to the original cushion flooring area.

• Soundproofing panels

[Sample Available] A one-piece unit that only needs to be laid out and does not require disposal! Equivalent sound insulation to LL-45 and insulation performance comparable to high-performance glass wool insulation 48K!

Product Name: Chardan OY430 【Features】 ✔ No need for disposal; low height of 43mm! ✔ Integrated soundproofing and insulation unit ✔ Easy installation by simply laying it down; installation time is approximately 3 hours for 50m² (according to our own research) ✔ High impact absorption performance equivalent to tatami mats This is a floor soundproofing material that can be laid under flooring with a thickness of 43mm. Being a bottom layer, it fits well under window frames! Since it fills the underfloor space with a special sound-absorbing material, it provides both soundproofing and insulation effects simultaneously. OY430 Thermal Conductivity: 0.040 [W/(m·K)] OY430HS Thermal Conductivity: 0.033 [W/(m·K)] * OY430HS is a high insulation version of OY430. The composition and basic performance (thickness / soundproofing / workability / safety) are equivalent to OY430. Using our uniquely designed "OY Joint," we achieved innovative construction that reduces labor and noise during installation. It features high impact absorption similar to tatami mats, ensuring high safety during falls. It is also recommended for use in facilities for the elderly and kindergartens.

• Renovation and repair methods

[Sample Presentation] Easy installation with soundproofing performance equivalent to LL-45 and insulation performance comparable to high-performance glass wool insulation 48K! 40mm thick low-floor base material.

Product Name: Chardan SPF400 【Features】 ✔ Low height of 40mm! ✔ Integrated soundproofing and insulation unit ✔ Reduced construction time to less than 1/3 compared to dry double flooring! (In-house research) ✔ Achieved LL-45 with SPC flooring! A multi-type that does not limit the choice of top material This is a floor soundproofing material laid under flooring with a thickness of 40mm. It has been certified for performance with SPC flooring, which is said to be thin and hard, making it difficult to ensure soundproofing performance. With Chardan SPF400, SPC flooring can be used not only in commercial facilities but also in apartment buildings and welfare facilities where soundproofing and insulation functionality is required. Since it is a form that fills the underfloor space with special sound-absorbing material, it provides both soundproofing performance and insulation effect simultaneously. SPF400 Thermal conductivity: 0.040 [W/(m·K)] SPF400HS Thermal conductivity: 0.033 [W/(m·K)] * SPF400HS is a high insulation version of SPF400. The composition and basic performance (thickness/soundproofing/constructability/safety) are equivalent to SPF400. By using dedicated edge treatment materials and fastening components, we achieve innovative construction that reduces construction time and noise.

• Tile/Indoor

【Sample Giveaway!】Concentrating unique technology into units, providing overwhelming construction efficiency and a comfortable living space.

Shardan supports comfortable living in collective housing such as condominiums and apartments from the floor up, thanks to its excellent soundproofing and thermal insulation properties. It accommodates a wide range of flooring materials, including solid wood flooring and SPC flooring, and mitigates impact noise transmitted from upper floors to lower floors. **Features of Shardan** ☆ Integrated soundproofing and insulation unit With a low floor thickness of 40mm, it can secure a space that is "more than 100mm higher than the standard ceiling height." Soundproofing: Industry-first! Achieves floor sound insulation performance of "LL-45" with a thickness of only 40mm, obtaining ΔLL(II)-3S. Thermal insulation: Uses sound-absorbing insulation material that demonstrates thermal conductivity equivalent to "high-performance glass wool insulation 48K." Ease of installation: Compared to dry double flooring, it "reduces installation time to less than 1/3," with simple laying using specially designed fastening components. Safety: Provides "high shock absorption" equivalent to tatami mats, improving safety during falls. **Shardan Lineup** ◯ SPF400 / SPF400HS A multi-type that does not limit finishing materials. *SPF400HS is a high thermal insulation version of SPF400.* ◯ OY430 / OY430HS A low-construction type that does not require a subfloor. *OY430HS is a high thermal insulation version of OY430.*

• Double Floor System

[Sample Available] Just lay it out; a one-piece unit that doesn't require any adhesive! Equivalent to LL-45 sound insulation and the same thermal insulation as high-performance glass wool insulation 48K!

Product Name: Chardan OY430 [Features] ✔ No need for underlayment; low height of 43mm! ✔ Integrated soundproofing and insulation unit ✔ Easy installation by simply laying it down; installation time approximately 3 hours for 50m² (according to our research) ✔ High impact absorption performance equivalent to tatami mats This is a floor soundproofing material that can be laid under flooring with a thickness of 43mm. Being a bottom layer, it fits well under window frames! Due to its structure filled with special sound-absorbing material, it provides both soundproofing performance and insulation effect simultaneously. OY430 Thermal conductivity: 0.040 [W/(m·K)] OY430HS Thermal conductivity: 0.033 [W/(m·K)] * OY430HS is a high insulation version of OY430. Its composition and basic performance (thickness/soundproofing/constructability/safety) are equivalent to OY430. Using our uniquely designed "OY Joint," we achieved innovative construction that reduces labor and noise during installation. It features high impact absorption similar to tatami mats, ensuring safety during falls. It is also recommended for use in facilities for the elderly and kindergartens.

• Renovation and repair methods

Would you like to use a flooring substrate that can provide both insulation and soundproofing to comply with the revised Energy Conservation Act?

According to the revised Energy Conservation Act for Buildings, all new buildings must comply with the "Energy Conservation Standards" starting in 2025. Floor insulation is one of the key points for the longevity of buildings. Are you looking for a flooring substrate that combines soundproofing and insulation? Product Name: Chardan SPF400 【Features】 ✔ Low height of 40mm! ✔ Integrated soundproofing and insulation unit ✔ Reduced construction time to less than 1/3 compared to dry double flooring! (In-house research) ✔ Achieved LL-45 with SPC flooring! A multi-type that does not limit the choice of top materials It has achieved performance with SPC flooring, which is said to be thin and hard, making it difficult to ensure soundproofing performance. Since it is a form filled with special sound-absorbing material in the underfloor space, it provides both floor soundproofing performance and insulation effect simultaneously. By using dedicated edge treatment materials and fastening components, we have realized innovative construction that reduces construction time and soundproofing work.

• Other flooring materials

We have introduced Majesta Fragrance to a nightclub in Yokosuka City, Kanagawa Prefecture, creating a fragrant atmosphere throughout the floor. The model we have introduced is the "MF-02S," which costs 8,800 yen per month (tax included). The scent you have chosen this time is "Sabon," a high-quality soap fragrance reminiscent of luxury hotel amenities. Its clean and transparent refreshing scent spreads throughout the entire floor, warmly welcoming customers who visit. By introducing scent design to the nightclub, we can enhance the extraordinary experience and create a memorable space that lingers not only visually but also through "scent." Majesta Fragrance offers a rental service for commercial aroma diffusers, and we also provide a free trial installation. If you are interested in scent design, please feel free to contact us.

In the July 8, 2026 issue of Air Conditioning Times, we featured "Flex Chamber" and "SS Premier" in a duct special.

SS Premier has won an award at the 24th Environmental and Equipment Design Awards. This award is organized by the General Incorporated Association of Architectural Equipment Comprehensive Association and recognizes outstanding efforts in environmental and equipment design. We will continue to strive for further improvements in quality and technology.

An interview article with Yoshinori Takada, President and CEO of bSearch Co., Ltd., has been published in the media "Vision Encyclopedia," which conveys the thoughts and backgrounds of business leaders. The article delves deeply into the background of transitioning from an ordinary student life to founding a company, as well as his unique winning pattern of "not pretending to be capable." It is filled with hints for achieving results in job hunting and work, so be sure to check it out! Vision Encyclopedia / bSearch Representative Interview - The Reason Why "Not Pretending to Be Capable" Leads to Trust This representative interview introduces a career story that will be useful for a wide range of people, from job seekers who want to know the tips for achieving results at work and those who truly want to meet companies that suit them, to companies and HR personnel looking to hire talented individuals and build strong organizations. You can find detailed insights on the perspective towards work in the interview article on "Vision Encyclopedia." ✨ ■ Check out the bSearch representative interview on "Vision Encyclopedia" here: https://vision-zukan.com/posts/bsearch/

On July 1, 2026 (Wednesday), talent Risa Yoshiki has been appointed as the official ambassador of b-search Co., Ltd. We are pleased to announce the appointment of Risa Yoshiki, who is active in various fields such as television and magazines, as our official ambassador (effective July 1, 2026). With this ambassador appointment, we at b-search Co., Ltd. aim to deliver the best recruitment solutions to many companies struggling with hiring activities, while also strongly promoting the joy of taking on challenges in work and the appeal of new ways of working to job seekers considering career changes or employment. ■ Background of the official ambassador appointment In today's world, where the declining labor force due to low birth rates and an aging population is advancing, "acquiring and retaining talent" has become an extremely important management issue that affects corporate growth. What is required in future recruitment activities is not the traditional method of "simply posting job advertisements and waiting for applications." What is urgently needed now is "proactive recruitment," which involves partnering with companies as their "best No. 2" to consistently promote everything from the planning of recruitment strategies to the establishment of systems that yield results.