Evidence Engine · WI-EV v1.7.0
A living evidence synthesis of the wood literature.
Each statement below is tracked continuously against the open scholarly registries. The Evidence strength, the consensus share and the conclusion are recomputed as new work is published, and every change is versioned in public.
Integrity checks
Crossref publisher updates and available Retraction Watch records · scheduled weekly. Coverage is not a guarantee that a work is valid. WI-SI v1.0.0 methodology
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527
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Synchronized 2 hours ago · each claim re-searched every 2–3 days
Compare materials and climate scenarios
Modelled service life for every indexed material under a chosen climate, facade orientation and maintenance scenario. Bars show the P10–P90 uncertainty band; hover or focus a row for durability class, spread, maintenance interval and confidence. These are modelled estimates from WI-SL v1.2.0, not measured service life.
14 yr
18 yr
12
Long-lived timber construction products deliver a net biogenic carbon storage benefit over the building service life.
The evidence leans towards this: 13 of 15 directional studies support it. Working conclusion (automated, not yet expert-reviewed).
How much and how good the evidence is, not whether the claim is true.
- Confidence
- Low confidence
- Consensus
- 84% · 13 of 15 directional studies
- Studies
- 53
- Supporting
- 13
- Contradicting
- 2
Substituting timber for mineral structural materials reduces the cradle-to-gate greenhouse gas emissions of a building.
The evidence leans towards this: 12 of 12 directional studies support it. Working conclusion (automated, not yet expert-reviewed).
How much and how good the evidence is, not whether the claim is true.
- Confidence
- Low confidence
- Consensus
- 100% · 12 of 12 directional studies
- Studies
- 65
- Supporting
- 12
- Contradicting
- 0
Thermal modification measurably increases the decay resistance of softwood in above-ground exterior use.
The evidence leans towards this: 14 of 15 directional studies support it. Working conclusion (automated, not yet expert-reviewed).
How much and how good the evidence is, not whether the claim is true.
- Confidence
- Moderate confidence
- Consensus
- 98% · 14 of 15 directional studies
- Studies
- 32
- Supporting
- 14
- Contradicting
- 1
The Scheffer climate index is a reliable predictor of above-ground decay hazard across climate zones.
The evidence leans towards this: 3 of 3 directional studies support it. Preliminary reading (automated, not yet expert-reviewed; fewer than 5 directional studies).
How much and how good the evidence is, not whether the claim is true.
- Confidence
- Low confidence
- Consensus
- 100% · 3 of 3 directional studies
- Studies
- 41
- Supporting
- 3
- Contradicting
- 0
Accelerated laboratory weathering tests reliably predict field performance of exterior wood coatings.
The evidence leans against this: 3 of 4 field validations contradict it. Preliminary reading (automated, not yet expert-reviewed; fewer than 5 directional studies).
How much and how good the evidence is, not whether the claim is true.
- Confidence
- Low confidence
- Consensus
- 8% · 1 of 4 directional studies
- Studies
- 56
- Supporting
- 1
- Contradicting
- 3
Charring rates of cross-laminated timber under standard fire exposure are predictable within the Eurocode 5 design assumptions.
The direction is unclear: only 0 directional studies are available (3 needed). Under review.
Insufficient evidence (24 relevant studies)
How much and how good the evidence is, not whether the claim is true.
- Confidence
- Low confidence
- Consensus
- Not yet calculated
- Studies
- 24
- Supporting
- 0
- Contradicting
- 0
Acetylation reduces the moisture-driven dimensional movement of wood by more than half relative to the untreated species.
The direction is unclear: only 0 directional studies are available (3 needed). Under review.
Insufficient evidence (20 relevant studies)
How much and how good the evidence is, not whether the claim is true.
- Confidence
- Low confidence
- Consensus
- Not yet calculated
- Studies
- 20
- Supporting
- 0
- Contradicting
- 0
Mass timber assemblies carry a higher built-in moisture risk during construction than they do in service.
The direction is unclear: only 2 directional studies are available (3 needed). Under review.
Insufficient evidence (48 relevant studies)
How much and how good the evidence is, not whether the claim is true.
- Confidence
- Low confidence
- Consensus
- Not yet calculated
- Studies
- 48
- Supporting
- 2
- Contradicting
- 0
Silicate-based surface treatments measurably slow the surface weathering of exterior softwood.
The direction is unclear: only 1 directional study is available (3 needed). Under review.
WoodIntel is funded by SiOO:X Wood Protection, which works with silicon-based wood protection. To avoid a conflict of interest, WoodIntel does not assess this claim. The indexed studies remain listed for anyone to read.
- Confidence
- Low confidence
- Consensus
- Not yet calculated
- Studies
- 4
- Supporting
- 0
- Contradicting
- 1
Regular maintenance of a film-forming coating extends the service life of exterior timber cladding more than the initial coating choice does.
The direction is unclear: only 0 directional studies are available (3 needed). Under review.
Insufficient evidence (53 relevant studies)
How much and how good the evidence is, not whether the claim is true.
- Confidence
- Low confidence
- Consensus
- Not yet calculated
- Studies
- 53
- Supporting
- 0
- Contradicting
- 0
Untreated larch cladding reaches a service life comparable to surface-treated softwood in temperate Northern European climates.
The direction is unclear: only 0 directional studies are available (3 needed). Under review.
Insufficient evidence (19 relevant studies)
How much and how good the evidence is, not whether the claim is true.
- Confidence
- Low confidence
- Consensus
- Not yet calculated
- Studies
- 19
- Supporting
- 0
- Contradicting
- 0
Preservative-treated Scots pine sapwood reaches the intended service life in EN 335 use class 3 exposure.
The direction is unclear: only 0 directional studies are available (3 needed). Under review.
Insufficient evidence (13 relevant studies)
How much and how good the evidence is, not whether the claim is true.
- Confidence
- Low confidence
- Consensus
- Not yet calculated
- Studies
- 13
- Supporting
- 0
- Contradicting
- 0
Sustained wood moisture content above 25 percent is the controlling condition for fungal decay initiation in above-ground timber.
The direction is unclear: only 2 directional studies are available (3 needed). Under review.
Insufficient evidence (46 relevant studies)
How much and how good the evidence is, not whether the claim is true.
- Confidence
- Low confidence
- Consensus
- Not yet calculated
- Studies
- 46
- Supporting
- 2
- Contradicting
- 0
Design detailing that keeps water off end grain affects the service life of exterior wood more than moving one EN 350 durability class.
The direction is unclear: only 0 directional studies are available (3 needed). Under review.
Insufficient evidence (53 relevant studies)
How much and how good the evidence is, not whether the claim is true.
- Confidence
- Low confidence
- Consensus
- Not yet calculated
- Studies
- 53
- Supporting
- 0
- Contradicting
- 0
Method WI-EV v1.7.0. Scores are computed from indexed metadata — volume, evidence grade, agreement, peer-review share, recency and reproducibility — not from expert opinion. A high score means the literature is consistent and well-graded, not that the statement is proven. Records are retrieved from Crossref, OpenAlex, Semantic Scholar and related open registries.