Standing seam snow guards.
Bronze snow guards on copper standing seam roof.
Date: 12/05/2008
Bronze snow guards installed on a copper standing seam metal roof. Guards are fastened with a set screw that is tightened against the standing seam without penetration.
Heat cable control
Ice and snow heat cable control.
Date: 11/28/2006
Ice and snow heat cable control. Temperature and moisture controlled. Will turn on heating cables when temperature drops to freezing and there is snow or water detected in the gutter.
Slate roof ridge detail
Lapped and screwed slate roof ridge.
Date: 12/16/2008
A slightly different ridge technique. Here there are two courses of slate laid flat and screwed to the ridge board.
The first layer / row is laid flat across the top field course with the opposite side ridge lapped over the top edge instead of meeting at the center. The second layer is offset from the joints of the first layer, and the top edges lapped opposite the first layer. The first layer has been nailed to the ridge board. The second layer has been drilled and then screwed to the ridge board with brass screws and washers.
This roof is close to a hundred years old and the ridges have not slid or opened.
The first layer / row is laid flat across the top field course with the opposite side ridge lapped over the top edge instead of meeting at the center. The second layer is offset from the joints of the first layer, and the top edges lapped opposite the first layer. The first layer has been nailed to the ridge board. The second layer has been drilled and then screwed to the ridge board with brass screws and washers.
This roof is close to a hundred years old and the ridges have not slid or opened.
Cheap aluminum flashing on steep roof.
Date: 05/03/2004
This aluminum stack flashing with a rubber pipe collar was installed to replace the original lead pipe flashing. The roof pitch is much too steep for the "one size fits all" aluminum flashing. Notice how the lower edge is raised off the roof and had to be bent down and caulked to seal. The rubber collar is also warped/pulled away from the pipe and the space had to be sealed with extra caulk. The base flange of the flashing is also about two inches short all the way around compare to the original lead flashing.
Hemmed step flashing
Date: 03/09/2009
Copper step flashing and counter flashing locked with a single lock hem/seam. The original mortar at the counter flashing to sandstone wall has recently been sealed, poorly, with urethane caulk.
