A roof mount assembly mounts a structure to a roof haying 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 haying 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.

In some aspects, deicer systems to distribute a deicing fluid along a roof of a building to limit ice dam formation can include: a pre-pressurized water source that provides pressurized water; a deicer solution source containing a deicer solution; a passive mixing system in fluid communication with the pre-pressurized water source and the deicer solution source, the passive mixing system being configured to combine the pressurized water and the deicer solution to form a deicer fluid; and one or more emitters configured to be disposed along the roof, the emitters being in fluid communication with the passive mixing system to receive the deicer fluid and dispense the deicer fluid along the roof. In addition, certain systems described herein can be run with an electric pump.

A repositionable roof clip assembly may include a mounting block including: a first wall, a second wall, a top wall joining the first wall and second wall and creating a gap therebetween; and at least one cable clamp including: a lower guide, an upper guide; and a bendable member joining the lower and upper guides and can be bent over a heating cable such that the heating cable is trapped between the upper guide and the lower guide.

The present invention relates to a vent pipe de-icing system that has a first external pipe, a first internal pipe, a second external pipe and a second internal pipe. The external pipes sit above the top surface of a vent pipe, and the internal pipes sit within the vent pipe. The internal pipes are connected to a hot water tank and or pump that pumps hot water or other heated fluid through the pipes such that the heated fluid exits the external pipes and falls into the inside surface of the vent pipe. In this manner, the device can be used to continuously defrost or de-ice a vent pipe and prevent ice from forming. The device can further be controlled via a mobile application, which allows a user to control when and how much fluid is pumped within the device.

A snow and ice melt system for a roof may feature heat plates which protect and contact heat cable to distribute heat over a wider area than cable alone. Bends in the plates create attachment structures by which the plates are assembled and by which heat cable is contained.

An article of manufacture for providing an adjustable ice dam hammer is made from one or more handle segments, the one or more handle segments having a turning elbow between a top segment of the handle and one or more lower segments, a grip about one or more lower segments for holding the adjustable ice dam hammer, and an ice breaking head coupled the top segment of the handle. The ice breaking head includes a main breaking head having a point on a first side and a pair of hammer points coupled to a second side of the main breaking head.

A mounting device or clamp is provided that can be secured to a roof joint without damaging the roof joint. Two roof panels can be joined at a roof joint that extends away from the roof. The clamp has a body with a slot to receive the roof joint. An insert of the clamp is rotatable relative to the body from a first position to a second position. The clamp body can be positioned over the roof joint, and the insert can rotate or pivot from the first position to the second position relative to the body to secure the clamp to the roof joint. In one embodiment, a body of the clamp has a first arm that is concave and the insert has a concave portion to engage the roof joint. Alternatively, in another embodiment, the insert can be connected to the clamp body such that either a first projection or a second projection of the insert faces a roof joint.

A width adjustable bracket for a metal roof includes a bolt, a top bracket and a bottom bracket. The top bracket has a flat surface with a slot for receiving the bolt. The flat surface is sized to receive an L bracket. A bottom bracket has a flat portion with a threaded hole for receiving the bolt. The width adjustable bracket is assembled by placing the bolt though the slot of the top bracket and the bolt being secured to the threaded hole of the bottom bracket. Once the bolt is placed through the top bracket, and placed in the threaded hole of the bottom bracket, the slot in the top bracket allows adjustment of a width of the width-adjustable bracket until the bolt is tightened into the threaded hole of the bottom bracket.

Structure heating systems and methods of making and use. One embodiment has a unitary or integral roof edge heating element with a single heating cable mounted in a heating cable channel running laterally through the heating element and a roof edge heating panel extending from the portion of the heating element bearing the heating cable. Another embodiment includes a single heating cable mounted in a heating element surrounded by a heating element cover. Some embodiments can reduce the amount of heat transfer contact with supporting roof or adjacent structure, reducing heat transfer to the supporting roof or other adjacent structure.