Solutions & Services News Agencies The company Contact Insulation A thermal insulator is a material having a low thermal conductivity and whose essential characteristic is to slow down the heat exchanges between the interior and the exterior of a building. INSULATION Its insulating power is evaluated by the coefficient of thermal conductivity λ. The smaller its value, the more insulating the material. Likewise, the insulating quality of a wall is measured by its thermal resistance R = thickness / λ. It is strongly recommended to use certified insulation bearing the ACERMI quality mark (Association for the Certification of Insulating Materials) which ensures the reliability of the performance of the products such as thermal resistance, reaction to fire, suitability for job, acoustic performance. In addition to this quality certification, thermal insulators must hold a Technical Application Document (DTA) describing and implementing it or a specification signed by a control office. Insulating panels for flat or inclined roofs are used on load-bearing elements in: - masonry in accordance with standards NFP 10-203 (ref DTU 20.12) and NF P84-204 (ref DTU 43.1); - autoclaved reinforced cellular concrete conforming to the “general conditions of use for roofing slabs in autoclaved reinforced cellular concrete” (CSTB 2192 from 1988), - wood and wood-based panels conforming to the NFP 84-207 standard (ref DTU 43-4) - ribbed steel sheets conforming to standard NFP 84-206 (ref DTU 43-3) - in new work and repairing according to standard NFP 84-208 (ref DTU 43-5) In addition to the insulation presented below, other types of insulation for thermal insulation of walls, floors or attics are also available on the market. POLYURETHANE (PUR) & POLYISOCYANURATE (PIR) - Cellular plastic insulation of λ = 0.022 to 0.028 w / mK – Support de revêtement d’étanchéité – Masse volumique faible LAINE DE ROCHE – Isolant minéral de λ=0,038 à 0,047 w/m.K – Support de revêtement d’étanchéité – Bon comportement de réaction au feu – Masse volumique élevée LAINE DE VERRE – Isolant minéral de λ=0,034 à 0,056 w/m.K – Support de revêtement d’étanchéité – Bon comportement de réaction au feu – Masse volumique élevée POLYSTYRÈNE EXPANSÉ (PSE) – Isolant plastique alvéolaire de λ=0,034 à 0,040 w/m.K – Support de revêtement d’étanchéité – Masse volumique faible POLYSTYRÈNE EXTRUDÉ (XPS) – Isolant plastique alvéolaire de λ=0,029 à 0,036 w/m.K – Pour isolation inversée – Masse volumique faible PERLITE EXPANSÉE (FIBRÉE) – Isolant minéral de λ=0,050 w/m.K – Support de revêtement d’étanchéité – Bon comportement de réaction au feu – Masse volumique élevée VERRE CELLULAIRE – Isolant minéral de λ=0,041 à 0,050 w/m.K – Support de revêtement d’étanchéité – Masse volumique élevée 2021 Roofmart France SAS. Tous droits réservés. | CGV | Mentions légales| Politique vie privée SOLUTIONS & SERVICES ACTUALITÉS AGENCES QUI SOMMES NOUS CONTACT We use cookies to ensure you get the best experience on our site. If you continue to use it, we will consider that you accept the use of cookies.OK