Manufacturer
| Product groups: | I-joists / double-T girders | ||
| Description of the area of application: | The U*psi insulation joist is a load-bearing, thermal-bridge-reducing element used to span the insulation layer on walls and roofs. It is suitable for use in front of load-bearing walls made of timber, masonry, or concrete—both in new constructions and energy-efficient renovations. Type F, with fixed rails, is optimized for flush and plumb surfaces, while Type S, with its adjustable rail, enables precise façade alignment even on uneven existing walls. The elements create installation-friendly cavities for insulation and can also serve as an adjustable substructure for interior fit-outs. | ||
| Product description of manufacturer: | U*psi F / S is a ladder-shaped insulation post element made of genuine wood rungs and rails, cross-laminated in the style of cross-laminated timber (CLT)—but with wide spacing between the individual lamellae. The insulation layer is only penetrated at discrete points, making it a solution with minimal thermal bridging. Type F, with fixed rails, is suitable for even substrates, while Type S, featuring an adjustable alignment rail, can also be used on uneven existing walls. | ||
| Product photos: | 
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| Ingredients according to natureplus declaration rules: | solid wood solid wood board wood fibre board glue | ||
| Designation of origin of the main ingredients: | PEFC-certified softwood (spruce, fir) from the Black Forest and southern Germany. Solid wood panels preferably from regional or European sources, all from controlled supply chains. Wood fiberboards made from residual and fresh wood supplied by local manufacturers. Low-emission PU adhesives are used in accordance with natureplus requirements. | ||
| Link to product on the manufacturer's homepage: | https://lignotrend.com/produkte/fassade/daemmstaender | ||
| Format l x w: | 2.940 mm x 160 mm 2.940 mm x 200 mm 2.940 mm x 240 mm 2.940 mm x 300 mm | ||
| thickness: | 6 cm | ||
| Dimensions (description): | LIGNO ® U*psi F / S Dämmständer bestehen aus zwei Holmen und Sprossen mit einer Gesamtlänge von 2940mm. Die Dicke beträgt ca. 60mm, die Breite je nach Typ 160 bis 300mm (F) bzw. 120 bis 240 mm justierbar (S). Der Sprossenabstand liegt bei ca. 440mm. | ||
| Construction drawing with dimensions: | LIGNO_Upsi_F.jpg (475 KB) | ||
| λr thermal conductivity rated valueAUT: | not specified | W/(m·K) | |
| λacc. to DIN 4108-4: | 0,12 | W/(m·K) | |
| ρ density: | 385 | kg/m³ | |
| c specific heat capacity: | 1600 | J/(kg·K) |
| Flammability class: | not specified | ||
| Production phase (A1 - A3 according to EN 15804): |  Energy efficient production process Environmental protection and clean production Climate Protection via reduced CO2 emissions | ||
Pesticide ≤ 1 mg/kg AOX / EOX ≤ 1 mg/kg TVOC ≤ 1000 μg/m³ TSVOC ≤ 100 µg/m³ Formaldehyde ≤ 36 µg/m³ Odour assessment ≤ 3 certificate valid until June 30, 2029 Certificate no.: 0211-0606-014-1 Status: zertifiziert Issuance Guidelines: 0211 |
 PDF (339 KB) valid until June 2027 |
| Technical data sheet: | 2023_07_05_TD_Upsi_F_S_de.pdf (1,10 MB) issued on July 5, 2023 | ||
| General Technical Approval (Germany): | valid until Feb 11, 2030 Registration number: Z-9.1-555 | ||
| declared since: | Jan 15, 2015 | ||
| Amended: | June 6, 2025 | ||
| baubook product index: | 9392 af | ||
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