Peripheral sealing glands for forming a seal between an elongate member and a substantially flat surface are provided. One method includes providing an at least in part frustoconical shaped skirt through which the elongate member is to pass and defining a deformable upper seal configured to deform about and form a first seal to a periphery of the elongate member, providing a flange depending from a lower periphery of the skirt, and providing a substantially rigid ring structured to bear on the outer surface of the flange so as to apply a substantially consistent pressure to the two or more endless lip seals to form a second seal against the flat surface. The skirt includes a retention flange to removably receive the rigid ring and to permit adjustment of the rigid ring relative to the flange.

The invention is directed to a construction material, to a method for preparing a construction material, and to the use of a construction material. The construction material of the invention comprises a perforated sheet of metal and on at least one side of the perforated sheet of metal a thermoplastic layer comprising poly(vinyl butyrate), wherein said thermoplastic layer has i) a modulus of elasticity as measured according to ISO 527 of 0.6-2.0 MPa, preferably in the range of 0.8-1.8 MPa, ii) a shore A hardness as measured according to ISO 7619-1 in the range of 25-65, preferably in the range of 35-50, and iii) an elongation at break as measured according to ISO 527 of 250-400%, preferably 275-375%.

Some embodiments relate to a roofing accessory. The roofing accessory comprises a protruding member extending from a base member. The base member surrounds at least a portion of an outer edge of a bottom end of the protruding member. The base member has a top surface, a bottom surface opposite the top surface, and an outer edge. The bottom surface of the base member has a weldable portion and an adherable portion between the weldable portion and the outer edge of the bottom end of the protruding member. The roofing accessory comprises an adhesive disposed on the adherable portion of the bottom surface of the base member. The adhesive is not disposed on the weldable portion of the bottom surface of the base member.

Some embodiments relate to a roofing accessory. The roofing accessory comprises a protruding member extending from a base member. The base member surrounds at least a portion of an outer edge of a bottom end of the protruding member. The base member has a top surface, a bottom surface opposite the top surface, and an outer edge. The bottom surface of the base member has a weldable portion and an adherable portion between the weldable portion and the outer edge of the bottom end of the protruding member. The roofing accessory comprises an adhesive disposed on the adherable portion of the bottom surface of the base member. The adhesive is not disposed on the weldable portion of the bottom surface of the base member.

Various roof vent adaptors are disclosed. The roof vent adaptors can be used to seal penetrations on buildings, such as vent penetrations on metal or non-metal roofs. In various embodiments, the roof vent adaptor includes a sealing member, an outer securing unit and an inner securing unit. The roof vent adaptor can be secured to the roof to provide a generally liquid-tight seal around the roof vent, thereby inhibiting or preventing water intrusion into the building.

Various roof vent adaptors are disclosed. The roof vent adaptors can be used to seal penetrations on buildings, such as vent penetrations on metal or non-metal roofs. In various embodiments, the roof vent adaptor includes a sealing member, an outer securing unit and an inner securing unit. The roof vent adaptor can be secured to the roof to provide a generally liquid-tight seal around the roof vent, thereby inhibiting or preventing water intrusion into the building.

Roof-to-wall flashing having a cavity formed from a closed hem that permits for the installation of new flashing into the cavity when installing a second layer roof, without removing the existing wall flashing and siding. The ledge acts like a hinge or spring which becomes compressed once siding or exterior product is placed onto ledge. The hinge or spring-like effect compresses the cavity, assisting in holding second layer flashings in place.

Roof-to-wall flashing having a cavity formed from a closed hem that permits for the installation of new flashing into the cavity when installing a second layer roof, without removing the existing wall flashing and siding. The ledge acts like a hinge or spring which becomes compressed once siding or exterior product is placed onto ledge. The hinge or spring-like effect compresses the cavity, assisting in holding second layer flashings in place.

A roof mount assembly mounts a structure to a roof having a rafter and a substrate supported by the rafter. The roof mount assembly includes a piece of flashing positioned on the substrate. The flashing includes a first surface, a second surface opposite the first surface and an aperture extending through the flashing. A fastener extends through the flashing aperture. A bracket is connected to the flashing via the fastener, and the bracket is sized to support at least one roof-mounted structure on the roof. A seal is positioned between the flashing aperture and the fastener. The seal is sized to form a water-tight seal with the aperture to inhibit flow of fluid through the aperture. The seal includes a first portion and a second portion, in which the first portion is positioned to abut the flashing first surface and the second portion is positioned to extend through the aperture.

A roof mount assembly mounts a structure to a roof having a rafter and a substrate supported by the rafter. The roof mount assembly includes a piece of flashing positioned on the substrate. The flashing includes a first surface, a second surface opposite the first surface and an aperture extending through the flashing. A fastener extends through the flashing aperture. A bracket is connected to the flashing via the fastener, and the bracket is sized to support at least one roof-mounted structure on the roof. A seal is positioned between the flashing aperture and the fastener. The seal is sized to form a water-tight seal with the aperture to inhibit flow of fluid through the aperture. The seal includes a first portion and a second portion, in which the first portion is positioned to abut the flashing first surface and the second portion is positioned to extend through the aperture.