How does the naphtha crisis affect housing construction?

Many housing materials, like insulation, piping, and paints, are made from naphtha. Supply shortages and price hikes for naphtha lead to increased costs and potential delays in the availability of these building materials.

What specific housing materials are affected?

Key affected materials include insulation (e.g., Kaneka Foam, with a reported 40% price increase) and piping materials (e.g., Vinyl Chloride Resin, with a reported increase of 30 yen/kg or more).

What should people planning to build a home do?

It is advisable to consult with your construction company about potential impacts on material availability and costs. Planning ahead, understanding potential delays, and discussing alternative materials or construction timelines with your builder are recommended.

When did this crisis begin to impact the market?

The article indicates that the naphtha crisis has been intensifying since March 2026, with price increases for materials announced effective from April 1, 2026.

Warning from a Hamamatsu Construction Company: The Naphtha Crisis Directly Hits Housing Materials - Insulation Supply Concerns and Construction Delays, What Those Planning a Home Should Know Now

Q: What is the naphtha crisis?

The naphtha crisis refers to the disruption and price increase of naphtha, a key petroleum-derived raw material, caused by geopolitical events such as the closure of the Strait of Hormuz. This impacts the production of various materials, including those used in housing construction.

Published Mar 30, 2026 6:00 PM ・ Updated Jun 2, 2026 1:01 PM ・ 4 min read ・ Source: PR TIMES

A construction company issues a warning about supply instability and price surges in housing materials due to the naphtha crisis.

LIFEFUND Co., Ltd. provides new housing primarily in Hamamatsu City, Shizuoka Prefecture. Concerns are rising about the impact on construction due to naphtha shortages.

LIFEFUND Co., Ltd. (Location: Chuo-ku, Hamamatsu City, Shizuoka Prefecture, Representative: Takuma Shirato) is issuing a warning to those planning to build a home regarding the impact of the naphtha crisis, which has been intensifying since March 2026, on housing materials.

What is the Naphtha Crisis, and Why Does it Relate to Home Building? Image of a tanker transporting goods from overseas to Japan.

At the end of February 2026, military clashes between the United States, Israel, and Iran led to the de facto closure of the Strait of Hormuz, a crucial chokepoint for energy transport in the Middle East. Japan relies on the Middle East for approximately 90% of its crude oil imports. This blockade affects not only gasoline and electricity prices. Many housing materials, such as insulation, piping, and paints, use "naphtha," a product derived from refining petroleum, as a raw material. As the procurement of naphtha begins to falter, a direct impact on housing materials is starting to emerge. Impact on Housing Materials In response to concerns about naphtha supply, major chemical manufacturers (such as Mitsubishi Chemical, Mitsui Chemicals, and Asahi Kasei) have successively announced production cuts for their ethylene plants. Consequently, housing material manufacturers are also moving towards price increases.

Insulation Materials Kaneka Foam (manufactured by Kaneka): Announced a price increase of 40% from the current price, effective for shipments on or after April 1, 2026. ※Source: https://www.kaneka.co.jp/topics/news/2026/nr2603195.html

Piping and Equipment Materials Vinyl Chloride Resin (Shin-Etsu Chemical Co., Ltd.): Announced a price increase of 30 yen/kg or more, effective for deliveries on or after April 1, 2026. ※Source: Yomiuri Shimbun Online (March 2026)

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Source: PR TIMES
Category: News

Warning from a Hamamatsu Construction Company: The Naphtha Crisis Directly Hits Housing Materials - Insulation Supply Concerns and Construction Delays, What Those Planning a Home Should Know Now

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What is the Naphtha Crisis, and Why Does it Relate to Home Building? Image of a tanker transporting goods from overseas to Japan.

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