Patents Assigned to Isola Fabrikker A/S
  • Roofing shingle
    Patent number: 4317853
    Abstract: Disclosed is a shingle having an enhanced relief effect which simulates roofing slate or roofing tile. The enhanced relief effect is provided by covering at least a portion of the underside of the shingle with a layer of particulated material such as spheres of expanded polystyrene, rubber particles, cork particles or other soft, elastic and resilient particles. The shingle further includes a stiffening layer over the layer of particulated material which tends to reduce the elasticity of the shingle.
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: March 2, 1982
    Assignee: Isola Fabrikker A/S
    Inventor: Eyvind M. Thiis-Evensen
  • Procedure for covering roofs
    Patent number: 4282050
    Abstract: The invention discloses a process of cladding a roof on a support structure which includes the step of applying an insulation layer on said support structure, applying edge abutting webs of cladding material over the insulation layer, simultaneously mechanically anchoring by fasteners the insulation and cladding webs to the support structure and sealing over the edges of the webs and fasteners by welding on welding strips covering said edges and fasteners.
    Type: Grant
    Filed: July 31, 1979
    Date of Patent: August 4, 1981
    Assignee: Isola Fabrikker A/S
    Inventor: Harald Thiis-Evensen
  • Roofing shingle
    Patent number: 4195461
    Abstract: Disclosed is a shingle having an enhanced relief effect which thereby simulates roofing slate or roofing tile. The enhanced relief effect is provided by covering at least a portion of the underside of the shingle with a layer of expanded particulated material such as spheres of expanded polystyrene. The shingle further includes a stiffening layer over the layer of expanded particulated material which tends to reduce the elasticity of the shingle.
    Type: Grant
    Filed: October 19, 1978
    Date of Patent: April 1, 1980
    Assignee: Isola Fabrikker A/S
    Inventor: Eyvind M. Thiis-Evensen
  • Roofing shingle
    Patent number: 4188763
    Abstract: Disclosed is a shingle having an enhanced relief effect which thereby simulates roofing slate or roofing tile. The enhanced relief effect is provided by covering at least a portion of the underside of the shingle with a layer of expanded particulated material such as spheres of expanded polystyrene.
    Type: Grant
    Filed: April 6, 1978
    Date of Patent: February 19, 1980
    Assignee: Isola Fabrikker A/S
    Inventor: Eyvind M. Thiis-Evensen
  • Inorganic raw felt intended for the production of roof felt
    Patent number: 4097644
    Abstract: An improved raw felt material having a high degree of strength and flexibility and increased bulk. The raw felt is used in producing an asphalt roofing cover. The felt is formed from an adhesively bonded porous non-woven sheet of an inorganic fibrous material and has finally divided vulcanized rubber particles distributed within the fibrous material.
    Type: Grant
    Filed: August 5, 1975
    Date of Patent: June 27, 1978
    Assignee: Isola Fabrikker A/S
    Inventors: Harald Thiis Evensen, Ola Tellesbo