France building index BT35: asphalt shingles roofing
France building index BT35: asphalt shingles roofing stood at 154.5 in Aug 2026, according to INSEE – Institut national de la statistique et des études économiques (BDM). It is one of the indicators in the Construction cost indices table (Value · Monthly), with a complete series running from Oct 2014 to Aug 2026. The complete series with an interactive chart, free to download.
This indicator in the Construction cost indices table
| Indicator | 08-2026 | 07-2026 | 06-2026 | 05-2026 | 04-2026 | 03-2026 | 02-2026 | 01-2026 | 12-2025 | 11-2025 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Building index - BT35 - Asphalt shingles roofing - Base 2010 | 154.5 | 154.4 | 154.9 | 152.9 | 149.7 | 147.8 | 147.7 | 147.4 | 146.8 | 146.4 | |
| Building index - BT02 - Earthworks - Base 2010 | 148 | 145.2 | 143.1 | 145.3 | 147.1 | 143.3 | 137.9 | 137.2 | 135.8 | 136.7 | |
| Building index - BT03 - Masonry and concrete pipes (except frame, reinforced concrete, tiling, coatings and plastering) - Base 2010 | 140.7 | 140.4 | 139.8 | 139.2 | 139 | 137.5 | 136.7 | 136.2 | 135.5 | 135.3 |
Understanding france building index BT35: asphalt shingles roofing
This series tracks price fluctuations for asphalt shingles roofing materials and associated installation components within the broader building index framework. The scope isolates specific membrane products and bitumen derivatives utilized in upper-level weatherproofing, entirely excluding structural timber substrates, underlying insulation layers, and alternative slate or tile systems captured in sibling categories. Calculations reflect producer and supplier price surveys tailored specifically to this waterproofing segment, capturing factory gate figures and associated delivery costs.
Interpreting this gauge requires accounting for potential supply-side shocks originating in petroleum refining markets, which heavily influence raw bitumen components. Analysts should favour twelve-month comparisons over month-on-month changes to smooth out short-term procurement volatility and seasonal installation lulls. When comparing against general construction deflators, users must remember that specialized roofing inputs often exhibit divergent pricing cycles compared to bulk structural aggregates.
Frequently asked questions
- What specific materials are included under asphalt shingles roofing?
- The index covers bitumen-saturated felt membranes, granular-surfaced shingle units, and necessary fastening or sealing accessories used exclusively in specialized roofing applications.
- Does this index measure the total cost of installing a new roof?
- No, it tracks material and supply costs rather than total project expenses, omitting labor overheads, scaffolding hire, and structural framing elements.
- How does this index differ from standard tile roofing measures?
- It focuses strictly on petroleum-based shingle products, whereas sibling categories track ceramic, concrete, or slate tiles which follow entirely different manufacturing cost structures.