ETUSUS Raises Housing Insulation Performance to Highest Rank, Class 7

General Incorporated Association ETUSUS Architecture Association (Headquarters: Imizu City, Toyama Prefecture, Representative Director: Takayuki Harano) announced on April 1st the upgrade of the insulation performance of its "ETUSUS" houses to Class 7 (UA value 0.26), the highest rank stipulated by the government, and has begun offering it as a standard specification for all homes. By further enhancing the performance from the previous standard, insulation Class 6 (UA value 0.34), we achieve a living environment where warmth is less likely to escape in winter and the outside heat is less likely to enter in summer. This supports a comfortable and healthy life while suppressing the energy required for heating and cooling.

Further Evolving Insulation Performance to Match the Hokuriku Climate In the Hokuriku area, where daylight hours are short and winters are severe, "how well heat generated is retained" significantly influences home comfort, even more than "how much heat is generated." ETUSUS focused on the unique climate conditions of the region and fundamentally reviewed its insulation performance. While maintaining the "double insulation structure" that uses high-performance insulation material "Neoma Foam" for both cavity insulation and external insulation, the conventional specification of 45mm Neoma Zeus for cavity insulation + 20mm Neoma Foam for external insulation has been significantly increased to 50mm Neoma Zeus for cavity insulation + 66mm external insulation material in the new specification. This boosts the overall insulation of the building envelope, creating a home less susceptible to external temperature fluctuations. It has evolved into a structure that can retain indoor warmth for longer, even during the harsh winters of Hokuriku.

Effects of Insulation Class 7 Tangible in Hokuriku Living The difference in insulation performance is clearly manifested not only in numerical values but also in daily experienced temperatures. Under conditions where the outside temperature is around 0°C, if heating is stopped from 23°C: ・Insulation Class 6 (UA value 0.46): Temperature drop after 6 hours is approximately 4.6°C. ・Insulation Class 7 (UA value 0.26): Temperature drop after 6 hours is approximately 2.6°C. This results in a difference of 2.0°C. This difference affects the coldness experienced in the morning and the chill at night, making it possible to experience a home where warmth lasts longer even after heating is stopped. The difference in insulation performance also clearly translates into a difference in utility costs. The estimated annual heating cost comparison for each UA value insulation performance under the same conditions (8-tatami room air conditioner) is as follows: Estimated values calculated based on the annual power consumption of air conditioner manufacturers, assuming the standard ETUSUS plan. From this comparison, homes with Insulation Class 7 (UA value 0.26) are expected to reduce heating costs by approximately 30,000 yen or more annually compared to Insulation Class 6 (UA value 0.46) homes.

ETUSUS's Vision for Future High-Performance Homes ETUSUS pursues homes where residents can live comfortably and without excessive energy consumption, optimizing the balance of insulation performance, equipment design, and the overall house. We have continued to refine our standard housing specifications, focusing on "performance suited to the Hokuriku climate" and "high cost performance through rationalization." This upgrade to Insulation Class 7 is not merely an improvement in numerical performance but an evolution to comprehensively enhance comfort, health, and energy efficiency. ETUSUS will continue to contribute to the creation of sustainable living environments through the dissemination of high-performance homes rooted in the region. *Please note that, given the current material supply situation, the materials, specifications, delivery times, etc., used may be flexibly adjusted depending on the circumstances.

ETUSUS Performance Overview (Standard Specifications) ・Insulation Performance Class 7 (UA value 0.26) ・Seismic Resistance Class 3 (calculated by allowable stress) ・Certified Long-Life Quality Housing ・Semi-Fire-Resistant Structure under Ministerial Ordinance

ETUSUS Model Houses ・Shimonii Honcho, Toyama City, Toyama Prefecture ・Fuchumachi, Toyama City, Toyama Prefecture ・Zenkoji, Imizu City, Toyama Prefecture ・Kokubuncho, Nanao City, Ishikawa Prefecture ・Tsubata Town, Kahoku District, Ishikawa Prefecture ・Kuan, Kanazawa City, Ishikawa Prefecture ・Furukawacho, Komatsu City, Ishikawa Prefecture ・Takagi Chuo, Fukui City, Fukui Prefecture ・Moritashinmachi, Fukui City, Fukui Prefecture Details on model houses and tour applications here: https://etusus.or.jp/event/event-cat/cat-model

About General Incorporated Association ETUSUS Architecture Association General Incorporated Association ETUSUS Architecture Association is a residential business group established through the collaboration of Woodlink Co., Ltd., a timber processing manufacturer in Toyama, and regional construction companies in Toyama, Ishikawa, and Fukui. They develop and provide "ETUSUS," standardized homes that integrate housing performance suited to the Hokuriku climate with rational construction processes.

【Company Overview】 Trade Name: General Incorporated Association ETUSUS Architecture Association Representative Director: Takayuki Harano Location: 415 Terazukahara, Imizu City, Toyama Prefecture 934-0056 Established: December 2020 Business Activities: Housing development and sales Service Area: Toyama Prefecture, Ishikawa Prefecture, Fukui Prefecture Official Website: https://etusus.or.jp/

【Inquiries】 General Incorporated Association ETUSUS Architecture Association TEL: 0766-84-4466 (Woodlink Co., Ltd. ETUSUS VC Division) E-mail: etusus-info