Construction · Japan · Disaster-zone tile-roof crew gap

Two years on, Noto's tiled roofs still wait. Japan's kawara crews don't exist at scale.

The January 2024 Noto Peninsula earthquake wrecked more than 140,000 buildings in Ishikawa Prefecture, most of them traditional houses with heavy clay-tile (called kawara — fired ceramic tiles laid on a timber roof) roofs. Two years later, 18,000 people still live in temporary housing. About 20,000 damaged buildings have not even been pulled down yet, let alone re-roofed. Reporters at Nikkei, the Japan Times and Bloomberg point to the same bottleneck: there are not enough construction crews. The tile trade is the worst hit. A kawara roof weighs about 60 kilograms per square metre and only a trained tile-layer — a 瓦師 (kawarashi, the tile-laying specialist) — can lay one correctly. No Japanese company gathers these specialists into mobile crews and sends them, at scale, to the disaster zone.

TL;DR

What hurts A homeowner in Wajima with a half-collapsed tile roof waits two years for any crew to even visit. The All-Japan Tile Roofing Federation directory lists shops one by one — most are three to eight people with a backlog into next year.
How big Over 140,000 buildings damaged. 20,000 not yet demolished. 18,000 residents still in temporary housing. Ishikawa's effective job-opening rate for building-structure workers hit 17.15 openings per applicant before the quake.
Why startups win Build a regional operating company in Ishikawa that gathers tile-layers, apprentices and general labourers into one payroll, owns its scaffolding and tile-cutting kit, and runs multi-week deployments to Noto homeowners — billed against the standard government rebuilding grant (up to about ¥3 million per household).

01The pain

On 1 January 2024 a magnitude-7.6 earthquake hit the Noto Peninsula in Ishikawa Prefecture. More than 140,000 buildings were damaged. Two years later: about 18,000 residents still in temporary housing, roughly 20,000 damaged buildings still waiting for demolition.¹^,2 The bottleneck is not money. It is people on a roof.

Noto builds in the old style: timber frames carrying heavy clay-tile (kawara) roofs. A kawara roof weighs about 60 kilograms per square metre, and only a trained tile-layer (a 瓦師, kawarashi) can lay one to code. Equal Times, in an August 2024 portrait of Katsuji Okada, a Noto home builder, put it plainly: "Kawara roofs have endured for centuries, but now they are disappearing."³ The All-Japan Tile Roofing Federation (the national trade body, 全日本瓦工事業連盟) keeps a public directory of member shops, prefecture by prefecture. It is a list of one-shop businesses. No entry aggregates crews and sends them anywhere.⁴

Ishikawa's effective job-opening rate for building-structure workers: 17.15 openings per applicant — before the quake even hit.⁵

Homeowners pay with savings plus 被災者生活再建支援金 (the Disaster Victim Livelihood Reconstruction Support Grant), up to about ¥3 million (US$20,000) per household.² Nakanoto town in Ishikawa now publishes its own contractor list (the file is named kensetugyouitiran, the "construction-trade list"), so residents have a number to ring.⁷ A town hall is not supposed to be the contractor-finding service. The grant is there. The roofs are there. The crews are not.

Kawara roofs have endured for centuries, but now they are disappearing. — Katsuji Okada, Noto home builder, Equal Times, August 2024

02Who solves this today

We searched for a Japanese company that runs the operating-business shape this gap calls for: a regional outfit in Ishikawa or neighbouring prefectures that puts kawara (clay-tile) specialists, apprentices and general labourers on one payroll, owns its scaffolding and tile-cutting kit, and runs multi-week deployments to homeowners across the Noto disaster zone — billed against the standard national rebuilding grant. We searched in English and Japanese across federation directories, municipal contractor rosters, post-quake trade-press coverage and disaster-relief contractor lists. The results were:

All-Japan Tile Roofing Federation (全日本瓦工事業連盟) keeps a national directory of member tile-roofing shops at yane.or.jp/meibo/meibo.cgi. The directory is organised prefecture by prefecture, with each tile shop listed individually — typically a three-to-eight-person family business with one master tile-layer, one or two apprentices and a local catchment of homeowner customers. The federation is an industry body, not an operating company. It does not dispatch crews and it does not aggregate. The fragmentation visible in its directory is the pain.
Nakanoto town municipal government (Ishikawa Prefecture) publishes its own contractor roster, kensetugyouitiran.pdf (literally "construction-trade list"), at town.nakanoto.ishikawa.jp. A municipal PDF is a discovery layer, not a service. The town hall is publishing the file because no private aggregator exists for residents to call instead. It is evidence of the gap, not a filler for it.

Neither is a real solver of this pain. The federation is a trade body. The town hall is a town hall. Both, in publishing the lists they do, are honest about the problem they cannot fix: Japan does not have a private operator that runs kawara-specialist crews at disaster-zone scale. This is an open opportunity for founders. The demand is concrete and the money is there: homeowners are paying with their own savings plus a national rebuilding grant of up to roughly ¥3 million per household (about US$20,000), set by the 1998 Disaster Victim Livelihood Reconstruction Support Act, with about 20,000 damaged Noto buildings still waiting. What is missing is the operator: a regional company that gathers the few remaining tile-layers (kawarashi) onto one payroll alongside apprentices and general labourers, owns its scaffolding and tile-cutting kit, runs week-on / week-off deployments out of an Ishikawa depot, and quotes against the grant directly. If you build, or know, a Japanese company that actually runs this shape, email contact@aikraft.com and we will list it.

No commercial solver located yet

After a search across the All-Japan Tile Roofing Federation directory, Ishikawa municipal contractor rosters and post-quake trade-press coverage, we did not find a Japanese company whose product page concretely runs a regional kawara-crew operating business at disaster-zone scale. If you build or know one, email contact@aikraft.com.

No companies listed yet — get on this page. This page is in no-solver-yet mode: we could not find a Japanese vendor whose product page concretely sells the Noto kawara-crew aggregation this gap calls for. If you build or know a company that does, write to us and we will list it within 7 business days. If you are already mentioned on this page and want a correction or removal, that runs through the same channel. Email contact@aikraft.com.

Operators discussing this

Japanese tile-roof operators discuss the trade in closed prefecture-level LINE groups and at All-Japan Tile Roofing Federation regional meetings, none of which are public. The substitute evidence below — the federation's own national directory, a municipal contractor roster published because residents could not find a contractor, and named-operator press coverage of the Noto reconstruction — is the recurring operator-side signal we could reach. It is the reason this page exists.

«屋根工事と瓦のプロ集団»

"Roof construction and tile professionals."

全日本瓦工事業連盟 — All-Japan Tile Roofing Federation, member-shop directory (加盟工事店検索) — National federation directory, listing tile shops prefecture by prefecture as one-shop entries. The page itself is the recurring industry signal: thousands of small shops, no aggregator, no crew-dispatch listing. Confirms the fragmented structure that the Noto reconstruction has been hitting against for two years.
«Kawara roofs have endured for centuries, but now they are disappearing.»

"Kawara roofs have endured for centuries, but now they are disappearing."

Equal Times — "Katsuji Okada, home builder in [Noto]" — August 2024 long-form portrait of a Noto home builder. The named operator is the on-the-ground voice corroborating the federation-directory pattern: the trade is shrinking shop by shop, faster than the disaster zone can be repaired.
«reconstruction is not proceeding smoothly due to the high number of elderly residents in disaster-hit areas, a shortage of homebuilders and soaring construction costs»

"Reconstruction is not proceeding smoothly due to the high number of elderly residents in disaster-hit areas, a shortage of homebuilders and soaring construction costs."

The Nation (Thailand) — Noto reconstruction wire summary — Wire piece on the two-year anniversary attributing the slow rebuild to three named drivers, the homebuilder shortage being the second of them.

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