Timber Window Frame
Alu-clad timber frames combining warmth inside and weathering outside.
Carbon and evidence
Product Evidence
Generic material record — no manufacturer product attached.
Evidence Base
Category estimateNo product evidence is attached to this generic material, so nothing on this card is numerical. The guidance below is qualitative — an AI-assisted category profile — for early design discussion, not for figures.
Next step: request a current product EPD or manufacturer carbon declaration, or swap in a branded product that holds one.
What's missing (3)
- •No current product EPD is recorded.
- •No quantified carbon result is recorded.
- •No product-specific circularity or material-health claims are recorded.
Service Life — the B4 Replacement Input
30 years · basis not recorded
≈2 installations over a 60-year building study period.
Design & Specification Notes
Alu-clad timber frames combining warmth inside and weathering outside.
Typical Uses
- •Glazing systems
- •Daylight openings
- •Thermal envelope
Key Performance
Supports daylight and thermal performance of the envelope.
Specification Actions
- •Provide FSC or PEFC chain-of-custody proof (and origin details if reclaimed).
- •Verify preservative treatment is non-toxic
- •Specify screw/bolt fixings so it can be taken apart
Indicative Health & Indoor Air
- •preservatives
Natural material. Verify preservative treatments are non-toxic (avoid CCA). Untreated timber has excellent indoor air quality.
Products in this category
6 products from 3 manufacturers · 17 in this category. Ordered by the evidence each record holds, never by commercial standing.
Specification
- Finish
- Timber alu-clad
- Service life
- 30 years