Abstract: A roof-penetrating pipe is covered with a sealing pipe. An annular part overlies the roof-penetrating pipe and a downward extension fits into the roof-penetrating pipe to center the sealing pipe. A flexible seal has an upper part tightly gripping the sealing pipe. A compression ring compresses the upper part against the sealing pipe. The flexible seal is slid downward on the sealing pipe. A base on the flexible seal is secured to the roof. A roof penetrating pipe which is difficult to seal or which cannot be sealed due to corrosion, breakage or oxidation is covered with a cover sleeve apparatus. The cover sleeve provides a smooth sealing surface for application of a standard roof pipe flashing device. The cover sleeve is manufactured from materials to withstand the elements and to meet industry standard sizing.

Abstract: Snow guards and mounts for attaching to seams of metal roofs have tops, spaced sides and inward and downward extending holes for elliptical tipped set screws. Square recesses opposite inner extremities of the holes form square bends in the seams. One screw and recess deform two layers below a rolled seam. Another screw and recess deform five layers in the rolled seam. Bottom lobes near one support provide a lowered hole and a lowered opposite recess. Snow blades extend upward and outward from the top and sides and downward to near a level of the bottoms of the sides.

Abstract: A silicone seal for surrounding and sealing an object has spaced thick beads and a rigid ring positioned between the beads. When the silicone seal is slid on the object, the silicone is compressed between the ring and the object and between the beads and the object. A plate has a flat base and an angular raised central portion with a ledge at an angle to the base. The silicone continues downward from the seal through a flexible middle to an enlarged part which has a complementary ledge that is seated on the plate ledge. An end of the large part is joined to the plate inward of the ledge.

Abstract: A silicone seal for surrounding and sealing an object has spaced thick beads and a rigid ring positioned between the beads. When the silicone seal is slid on the object, the silicone is compressed between the ring and the object and between the beads and the object. A plate has a flat base and an angular raised central portion with a ledge at an angle to the base. The silicone continues downward from the seal through a flexible middle to an enlarged part which has a complementary ledge that is seated on the plate ledge. An end of the large part is joined to the plate inward of the ledge.

Abstract: A one-piece, lightweight snow guard is made of clear plastic. The snow guard includes a base having a bottom and a top, a plate having a front wall and a back wall and extending upward from the top of the base, and support members having first edges connected to the top of the base and second edges connected to the front or back wall of the plate. The snow guard is preferably made of polycarbonate. The bottom of the base is connected to a roof using an adhesive. Preferably, the base includes lower side portions, a raised middle portion and upward and inward sloping portions connecting the middle portion to the side portions. The middle and sloping portions define a region for receiving a roof rib. Breakaway baffles extend from the bottom of the middle portion for retaining adhesive underneath the base. The baffles break away before adhesive application when the base is positioned over a rib.

Abstract: A roof vent for sheet material roofs and for seamed metal roofs slides along the roof as the roofing sheet expands and contracts. The vent includes a base having a radially extending base flange and a generally cylindrical body portion extending upward from the base flange. The body portion of the base extends through an air ventilation opening provided in the roofing sheet. A double-sided adhesive ring is positioned between the upper surface of the base flange and the undersurface of the roofing sheet surrounding the opening for securing the base flange to the roofing sheet against movement or turning. A gasket is placed around the body portion of the base and abuts the upper surface of the roofing sheet for providing a watertight seal. A main body with a lower flange is placed over and connected to the body portion of the base.

Abstract: A through-roof fitting seals a stack with a boot and seals the boot with a gasket around an opening in a sheet roofing created to receive the stack or pipe. An elliptical opening is cut in the roofing sheet. A base plate is placed below the sheet with a central raised portion of the plate extending through the opening cut in the roofing sheet. A flange on the base plate extends outwardly beneath the roofing sheet around the opening. A clamping plate is embedded in a combined boot and gasket so that the gasket extends over the roofing sheet around the opening when an elliptical step in the clamping plate is aligned with the projecting central portion of the base plate. The boot has successively inwardly stepped elliptical portions which terminate in a sloped top with a central opening for receiving and tightly engaging and sealing the pipe or stack. The embedded clamping plate has fastener openings which align with fastener receivers in the base plate.

Abstract: A snow stop has a flat blade formed with curved upper and lower edges. Openings extend through the blade for weight reduction and for permitting passage of air and fluids. A slot extends upward from a center of a blade for receiving a standing seam of a metal roof, and a boss extends from the blade around the slot for fixing the blade on a roof seam. The boss has an outward extending support with a ledge, which continues outward from a top of the slot for resting on top of a standing seam. The boss extends downward and terminates downwardly in rounded lobes. Holes extend through the lobes parallel to the blade, and fasteners extend through the holes for engaging sides of a standing seam. The fasteners cooperate with the ledge to prevent movement of the snow stop on the seam.

Abstract: A snow brake has three major portions, all of which are formed together in a single mold by casting. The first part is a gripper base having a rectangular U-shaped cross-section and an elongated side elevation. A slit extends upward from a bottom of the base to receive a roof seam. Set screw openings extend inward from one side wall and to the slit. Indentations are formed in the side opposite the set screw openings, so that the set screws may press portions of the seam into pockets formed by the indentations, deforming the seam and locking the base to the seam of a standing seam metal roof. The snow retainer is a curved plate which is inclined to the base at about a 60.degree. angle. The plate is wide at the curved bottom and is curved inward toward the top.