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Membrane with surface structure

a surface structure and membrane technology, applied in the field of membranes, can solve the problems of unsightly surfaces, affecting the reflective capacity of membranes, and affecting the service life of membranes,

Inactive Publication Date: 2014-09-04
SIKA TECH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes a waterproof membrane that includes a thermoplastic barrier layer with a smooth upper surface. The waterproof membrane can be used to seal substructures or to reflect sunlight. The technical effect of this invention is to provide a reliable and effective sealing solution for substructures and a system for reflecting sunlight while preventing water intrusion.

Problems solved by technology

It is known that (flat) roofs can become soiled over their service life.
Such soiling not only results in unsightly surfaces, for example, in the case of white or colored surfaces, but can also diminish the reflective capacity of these roofing materials.

Method used

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Examples

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Embodiment Construction

[0016]The disclosure relates to a waterproof membrane having a barrier layer, with the barrier layer including a thermoplastic material. In accordance with an exemplary embodiment, the barrier layer can have an arithmetic mean roughness value Ra of 0.01-0.8 μm in accordance with DIN EN ISO 4287: 1998-10.

[0017]In accordance with an exemplary embodiment, membranes of this type offer can have a diminished susceptibility to soiling and are easier to clean. Moreover, the force to unroll such membranes when they are in the rolled-up state can also be reduced, for example, after the membranes have been stored at temperatures above 60° C.

[0018]In accordance with an exemplary embodiment, the present disclosure relates to a waterproof membrane 1, which can include a barrier layer 2, wherein the barrier layer contains a thermoplastic material, for example, thermoplastic polyolefins or polyvinyl chloride (PVC), for example, polypropylene (PP) or polyethylene (PE). The upper face 3 of the barrie...

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Abstract

A waterproof membrane, a method for sealing substructures, and a system for reflecting sunlight are disclosed. The waterproof member can include a barrier layer, which contains a thermoplastic material, and wherein an upper face of the barrier layer has an arithmetic mean roughness value Ra in accordance with DIN EN ISO 4287: 1998-10 of about 0.01-0.8 μm.

Description

RELATED APPLICATION(S)[0001]This application claims priority as a continuation application under 35 U.S.C. §120 to PCT / EP2012 / 072625, which was filed as an International Application on Nov. 14, 2012, designating the U.S., and claiming priority to European Application No. 11189212.1 filed in Europe on Nov. 15, 2011. The entire contents of these applications are hereby incorporated herein by reference in their entireties.FIELD[0002]The disclosure relates to a membrane, for example, a waterproof membrane, and methods for sealing substructures and increasing the energy output of bifacial or multifacial photovoltaic elements.BACKGROUND INFORMATION[0003]It is known, for example, for (flat) roofs, to use membranes that can reflect sunlight in order to help prevent buildings from becoming overheated. As a result of the reflectivity of these roofing materials, the absorption of solar radiation and the conversion thereof to heat can be reduced. In recent years, photovoltaic systems, so-called...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E04D5/12E04D5/08E04B1/66E04D5/06E04D5/10
CPCE04D5/12E04D5/06E04D5/08E04B1/665E04D5/10B32B27/12B32B27/32B32B2307/416B32B2419/06B32B27/20B32B27/304B32B3/30B32B2250/02B32B2264/102B32B2307/4026B32B2307/538B32B2307/712B32B2307/718B32B2307/7265B32B2307/746B32B2307/754Y02E10/52H01L31/0547Y02B10/10Y10T156/10Y10T428/24355
Inventor RUDOLF, JEAN-CLAUDEHUBSCHER, PETER
Owner SIKA TECH AG
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