Abstract: A roof jack apparatus for sealing openings in roofs through which penetrating conduits may pass. The apparatus includes an inner jack and outer jack. The inner jack may include an inner collar, a first flange, and an inner door. The outer jack may include an outer collar, a second flange, and an outer door. A portion of the inner jack may be inserted into at least a portion of the outer jack. The inner and/or outer jack may be rotated about each other. When rotated so that the first door is aligned with the second door, a passageway may be opened that allows the roof jack apparatus to be slid across the sides of the conduit and into position. The passageway may then be closed by rotating the inner and/or outer jack so that the first and second door are no longer aligned, thereby closing the passageway.

Abstract: A deck post (or brace) having a non-circular cross-section is secured to a roof deck. A lead pipe jack (sleeve) is slid over the post. A waterproofing assembly having a collar and a skirt is provided; the collar has an opening with generally the same non-circular cross-section as that of the post. The collar opening is positioned on the deck post, and the unit is slid down the post until the collar is at the top of the sleeve, the skirt extending down over the sleeve. A clamp is then positioned and tightened around the collar to provide a watertight seal on the deck post. When the post is already installed on a roof deck and the sleeve and the waterproofing assembly cannot be slid into place on the post, a modified retrofit waterproofing assembly and sleeve are used to provide the waterproofing. The modified sleeve is a split lead flashing jack with an open seam on one side. The sleeve is opened up, wrapped around the post and soldered closed.

Abstract: A deck post (or brace) having a non-circular cross-section is secured in place by bolting its mounting bracket to the roof deck. A lead pipe jack is slid over the post, and its lower flange is nailed to the deck. A waterproofing assembly having a collar and a skirt is provided; the collar has an opening with generally the same non-circular cross-section as that of the post. The collar opening is positioned on the deck post, and the unit is slid down the post until the collar is at the top of the lead pipe jack and the skirt extends down over it. A stainless steel hose clamp is then positioned and tightened around the collar to provide a watertight seal on the deck post. When the post is already installed on a roof deck and the jack and the waterproofing assembly cannot be slid into place on the post, a modified waterproofing assembly and jack are used to provide the waterproofing. The modified jack is a prior art split lead flashing jack with an open seam on one side.