Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Villadsens Fab As JensfiledCriticalVilladsens Fab As Jens
Publication of BE749055ApublicationCriticalpatent/BE749055A/en
E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
E04D5/12—Roof covering by making use of flexible material, e.g. supplied in roll form specially modified, e.g. perforated, with granulated surface, with attached pads
Abstract
Roofing material based on a layer of thermoplastic sheet covered with a layer of (elongated) granules or pellets of a similar compatible thermoplastic material heat bonded to the surface. Pref. the granules are 0.3-4 mm dia. and slightly softer than the base film. The granules protect the base film from the effects of sunshine and footprints as pebbles are used to protect bitumen, are less slippery to walk on than a smooth surface, esp. when wet. Granules can be used to create colour or texture variations. Esp. applicable to use of plasticized PVC or polyvinylacetate materials.