Noninvasively identifiable membrane roof system
AssigneeCarlisle Corporation
InventorsRobert J. Deffeyes, William A. Manly
Life of this patent
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Abstract
To indicate the origin of manufacture of the components of a roofing system, magnetically permeable particles are incorporated into the components. The particles are preferably loaded into the lap sealant and adhesive used to form field splices. Thus loaded, the lap sealant and/or adhesive has magnetically permeable properties or characteristics which are electromagnetically detectable through and beyond one layer of rubber sheeting. Detection of these particles provides an indication of origin of the material.
Claims17
A noninvasively identifiable roof system comprising:
- a plurality of water impermeable membrane sheets sealed at overlapping edges thereof by lap sealant and adhesive to form one continuous water impervious membrane;
- magnetically permeable particles incorporated into at least one component part of said roof system selected from the group consisting of said adhesive, said lap sealant and said membrane sheets, said particles incorporated in sufficient quantity and distribution so as to be electromagnetically detectable.
A method of forming a roof system in which the origin of manufacture of component parts thereof is noninvasively detectable, comprising the step of:
- incorporating magnetically permeable particles into one component part selected from the group consisting of said adhesive, said lap sealant and said membrane sheets, said particles incorporated in sufficient quantity and distribution so as to be electromagnetically detectable.
A method of forming a roof system in which the origin of manufacture of component parts thereof is noninvasively detectable, comprising the step of:
- sealing a plurality of water impermeable membrane sheets at overlapping edges thereof by lap sealant and adhesive to form one continuous water impervious membrane to cover said roof deck, at least one of said lap sealant and said adhesive having magnetically permeable particles incorporated therein in sufficient number and distribution so as to be electromagnetically detectable.
Dependencies are inferred from the claim text.