Skip to main content

Index BT30

Couverture en ardoises de schiste

152.50
2026-05
+0.26% vs prev. month

Calculate a price revision

Calculate a revision with this index →

Source: INSEE BDM

History (last 24 months)

PeriodValueStatus
2026-05152.50final
2026-04152.10final
2026-03151.50final
2026-02150.30final
2026-01149.90final
2025-12149.50final
2025-11149.20final
2025-10148.90final
2025-09148.20final
2025-08148.30final
2025-07148.00final
2025-06147.50final
2025-05147.40final
2025-04147.40final
2025-03147.40final
2025-02147.50final
2025-01146.50final
2024-12146.10final
2024-11145.90final
2024-10145.80final
2024-09145.00final
2024-08145.50final
2024-07145.10final

Track your contracts automatically

Each time BT30 is published by INSEE, receive the calculated revisions and ready-to-send letters by email.

Free until September 30, 2026