Recycled roofing material and method of manufacturing the same

D - Textiles – Paper – 06 – N

Patent

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Details

D06N 5/00 (2006.01) E04D 1/26 (2006.01) E04D 5/02 (2006.01) E04D 5/10 (2006.01)

Patent

CA 2268855

A recycled asphalt roofing material for use on sloped roofs, which provides the required elevated melt point without using prior art methods of oxidizing the asphalt prior to incorporation into the roofing material is provided. The recycled asphalt roofing material is made up of approximately 30% flux asphalt and approximately 70% reclaimed asphalt roofing material. The fibrous backing in the reclaimed material modifies the asphalt in such a way as to provide the required elevated melt point. The manufacturing process for recycled fiberglass mat-based roll and shingle roofing, in its preferred embodiment, consists of impregnating a roofing material backbone, such as a fiberglass or polyester mat with recycled asphalt material to form inner and outer layers of recycled material and then applying optional second inner and outer layers of standard asphalt coating to the inner and outer layers of the recycled material. The second coating encapsulates and seals the recycled material and thus ensures that the recycled roofing material will have the same longevity as prior art asphalt roofing materials.

Matériau de couverture en asphalte recyclé pour utilisation sur les toitures inclinées qui offre le haut point de fusion nécessaire sans avoir recours aux anciens procédés comme l'oxydation de l'asphalte avant son incorporation aux matériaux de couverture. Le matériau de couverture en asphalte recyclé est composé d'environ 30 % de fluxant d'asphalte et d'environ 70 % d'asphalte régénéré. Le renfort fibreux dans le matériau régénéré modifie l'asphalte de façon à lui donner le haut point de fusion nécessaire. Le procédé de fabrication des matériaux de couverture en rouleaux de mat et en bardeaux de fibre de verre recyclée, dans le mode de réalisation privilégié, consiste à imprégner la base d'un matériau de couverture, par exemple un mat de fibre de verre ou de polyester, d'un matériau d'asphalte recyclé pour former une couche interne et une couche externe de matériau recyclé, puis en appliquant, au choix, une seconde couche interne et externe sur les couches interne et externe du matériau recyclé. Le second revêtement encapsule le matériau recyclé et le rend étanche, ce qui assure au matériau de couverture recyclé la même longévité que les matériaux de couverture en asphalte courants.

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