KL paneler
Kvalitetsbeskrivning av KL-trä
Kvalitetsbeskrivning av KL-trä
Paneler av KL-trä finns tillgängliga i tre olika kvaliteter, beroende på användningsområde. Speciell ytbehandling och/ eller andra träslag finns tillgängliga på begäran.
| Synlig kvalitet – passar för permanent synliga ytor i bostadshus och offentliga byggnader. Slipad, kvalitetskontrollerad och förberedd yta i enlighet med utseendeklass AB (EN 13017-1). |  |
| Industriell – visuell kvalitet för industriella byggnader med lägre krav gällande ytans kvalitet Slipad, kvalitetskontrollerad och förberedd yta i enlighet med utseendeklass B (EN 13017-1). Osynlig kvalitet används för bärande strukturer. Icke slipad, kvalitetskontrollerad enligt utseendeklass C (EN 13017-1). |
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| Non-visible quality is used for load-bearing purposes. Not sanded, surface quality according to appearance class C, (EN 13017-1). |  |
CLT Qualities
| SURFACE QUALITY – according to EN13017 – 1 | |||
| Surface quality grade and product characteristics | |||
| CHARACTERISTICS | V (visible) | I (industrial) | N (non-visible) |
| Appearance grade | A/B | B/B; B/C | C/C |
| Mixture of species | not permitted | not permitted with spruce; or 10% of fir, is permitted if evenly distributed | permitted |
| Bonding | occasional open joints up to max. 1 mm width permitted | occasional open joints up to max. 2mm width permitted | occasional open joints up to max. 3 mm width permitted |
| Blue stains | not permitted | slight discoloration permitted | permitted |
| Discolorations (brown stains, etc.) | slight discoloration permitted | slight discoloration permitted | permitted |
| Texture | coarse texture permitted | coarse texture permitted | no requirements |
| Resin galls | A/B single up to 3 x 50 mm permitted | single up to 5 x 50 mm permitted | permitted |
| Bark ingrowth | A/B occasional occurrences permitted | occasional occurrences permitted | permitted |
| Dry cracks / Fissures | occasional surface cracks permitted | 50 mm in length permitted | permitted |
| Core – pith | occasional, up to 400 mm long permitted | permitted | permitted |
| Insect damage | not permitted | not permitted | single small worm holes permitted provided worms are inactive |
| Knots – sound | no knot cluster; permitted spruce up to 20-40 mm Ø pine up to 35 – 60 mm Ø | permitted | permitted |
| Knots – black | single max. 15 mm Ø | single max. 30 mm Ø | permitted |
| Knots – hole | max. 10 mm Ø | max. 20 mm Ø | permitted |
| Quality of edges and ends of panel | blemishes not permitted | single blemishes permitted up to 5 mm | max. 2 x 50 mm |
| Surface | 100 % sanded | 100 % sanded | no requirements |
| Quality of surface finish | occasional small faults permitted | occasional small faults permitted | occasional small faults permitted |
| Quality of narrow side bonding and face ends | occasional small faults permitted | occasional faults permitted | occasional faults permitted |
| Rework edge of cut with sandpaper | yes | no | no |
| Machining – chainsaw | not permitted | permitted | permitted |
| Lamella width | 80 mm ≤ | 80 mm ≤ | 80 mm ≤ |
| End joints | Finger joints | Finger joints | Finger joints |
| Wood moisture | max. 14 % | max. 14 % | max. 14 % |