Some embodiments of the present disclosure relate to a roofing system. In some embodiments, the roofing system includes a first roofing material, wherein the first roofing material comprises a top surface and a bottom surface. In some embodiments, the top surface of the first roofing material comprises a nail zone with a plurality of fines. In some embodiments, the roofing system includes a second roofing material, wherein the second roofing material comprises a top surface and a bottom surface. In some embodiments, the bottom surface of the second roofing material comprises a plurality of fines. In some embodiments, the roofing system comprises and a patterned adhesive, which directly contacts at least a portion of the plurality of fines in the nail zone and at least a portion of the plurality of fines on the bottom surface of the second roofing material.

A fiber mat includes a unitary assembly of fibers including at least a first set of fibers and at least a first binder comprising an organic resin, wherein the unitary assembly of fibers includes a minority portion and a majority portion different than the minority portion, wherein the fiber mat provides at least a 5% increase in tear when placed in a bituminous roofing product compared to an equivalent bituminous roofing product made with a fiber mat of equivalent weight containing a homogenous mat structure.

A fiber mat includes a unitary assembly of fibers including at least a first set of fibers and at least a first binder comprising an organic resin, wherein the unitary assembly of fibers includes a minority portion and a majority portion different than the minority portion, wherein the fiber mat provides at least a 5% increase in tear when placed in a bituminous roofing product compared to an equivalent bituminous roofing product made with a fiber mat of equivalent weight containing a homogenous mat structure.

Some embodiments of the present disclosure relate to a roofing system. In some embodiments, the roofing system comprises at least one steep slope roof substrate having a first region. In some embodiments, the first region comprises a plurality of shingles. In some embodiments, each of the plurality of shingles comprises at least one antimicrobial agent. In some embodiments, the at least one steep slope roof substrate also comprises a second region. In some embodiments, the second region comprises an antimicrobial scavenger layer that is configured to receive runoff from the first region of the steep slope roof substrate. In some embodiments, the runoff comprises an initial concentration of at least one antimicrobial agent and water. In some embodiments, the antimicrobial scavenger layer is configured to capture the at least one antimicrobial agent so as to reduce the initial concentration of the at least one antimicrobial agent in the runoff.

Asphalt roofing systems including multiple sealing strips between two overlaid asphalt roof shingles are described. Additional sealing strips can enhance wind and water resistance of a roof. Simulations are carried out with three tab asphalt roofing shingles to determine desirable locations for multiple sealing strips between overlaid shingles.

A roofing shingle includes a head lap and at least one solar cell. The head lap includes at least one handle located between a first end and a second end of the shingle and proximate to a first edge thereof. The at least one handle includes at least one cutout and a gripping portion. The at least one cutout is sized and shaped to receive an external object to facilitate transporting the shingle by a user.

A shingle blank includes a substrate coated with asphalt, a headlap portion, a prime portion, a starter shingle separation line, and first and second ridge shingle separation lines. The headlap portion has a first sealant that extends along the width of the substrate, and the prime portion has a second sealant that extends along the width of the substrate. The starter shingle separation line extends along the width of the substrate and facilitates separation of the shingle blank into first and second starter shingles. The first starter shingle includes the first sealant and the second starter shingle includes the second sealant. The first and second ridge shingle separation lines extend along the height of the substrate from an upper edge of the substrate to a lower edge of the substrate and facilitates separation of the shingle blank into three ridge shingles. Each of the three ridge shingles includes a portion of the first sealant and a portion of the second sealant.

A shingle blank includes a substrate coated with asphalt, a headlap portion, a prime portion, a starter shingle separation line, and first and second ridge shingle separation lines. The headlap portion has a first sealant that extends along the width of the substrate, and the prime portion has a second sealant that extends along the width of the substrate. The starter shingle separation line extends along the width of the substrate and facilitates separation of the shingle blank into first and second starter shingles. The first starter shingle includes the first sealant and the second starter shingle includes the second sealant. The first and second ridge shingle separation lines extend along the height of the substrate from an upper edge of the substrate to a lower edge of the substrate and facilitates separation of the shingle blank into three ridge shingles. Each of the three ridge shingles includes a portion of the first sealant and a portion of the second sealant.

This invention, in embodiments, relates to a roofing material comprising (a) a coated or covered substrate and (b) a single sealant applied to a surface of the coated or covered substrate, with the single sealant being free of asphalt. The single sealant exhibits a minimum activation temperature (° C.) (tan δ>1) from −10° C. to 0° C. The single sealant is configured to adhere the roofing material to at least one of (i) an underlying roofing material, (ii) an overlying roofing material, and (iii) a roofing deck substrate.

This invention, in embodiments, relates to a roofing material comprising (a) a coated or covered substrate and (b) a single sealant applied to a surface of the coated or covered substrate, with the single sealant being free of asphalt. The single sealant exhibits a minimum activation temperature (° C.) (tan δ>1) from −10° C. to 0° C. The single sealant is configured to adhere the roofing material to at least one of (i) an underlying roofing material, (ii) an overlying roofing material, and (iii) a roofing deck substrate.