Patent ID: 11905710
Assignee: BMIC LLC
Field: Civil engineering (Other fields)
Classification: CPC E  D  H | IPC D  E  H

Claim 10:
11. A roofing system comprising:
a roof deck;
a plurality of shingles installed on the roof deck; and
a roofing underlayment installed on the roof deck, wherein the roofing underlayment consists of:
a single layer, wherein the single layer comprises:
a binder;
a first non-woven fiber type dispersed in the binder;
wherein the first non-woven fiber type comprises a conductive material;
wherein the roofing underlayment has an amount of the first non-woven fiber type causing, when the roofing underlayment is positioned on a roof structure, for the roofing underlayment to allow for shielding a percentage of electromagnetic radiation passing through the roof structure;
a second non-woven fiber type dispersed in the binder;
wherein the second non-woven fiber type comprises a non-conductive material; and
wherein the second non-woven fiber type is configured to provide structural reinforcement;
wherein the first non-woven fiber type and the second non-woven fiber type are mixed so as to be randomly dispersed within the binder of the single layer,
wherein the roofing underlayment is between the roof deck and at least some of the plurality of shingles,
wherein at least some of the plurality of shingles contact the single layer,
wherein the single layer contacts the roof deck.