Typically the top side of the skylight well runs at 90 degrees to the roof slope and the bottom side if splayed is framed plumb see figure 3 20.
Skylight in sloping roof details.
When using manufacturer produced curbs that aren t tall enough the roofing professional will have to extend the curb.
If you are unsure the skylight manufacturer should provide drawings to indicate minimum curb heights which will allow your builder to calculate how high the top of the slope needs to be to achieve the desired pitch.
On very steep roofs where the top of the skylight is near eye level a horizontal angle works well for the top side of the well.
The pitchglaze is a ce marked roof window designed to be installed in pitched tiled roof applications flush in plane with the tiling line.
To achieve the required pitch a curb is usually constructed around the aperture in the roof which will accommodate the slope into it for the skylight to be structurally fixed to.
See roofing systems for more discussion on steep slope roofing systems.
With this skylight the glazed section slides as a single leaf and is supported by tracks on the roof itself in the open position.
Glazing vision have adopted their pioneering frameless design ethos with this product so that when installed the building occupants can enjoy sky only views from the roof window something not usually found with traditional roof window products.
A metal counterflashing for the step flashing that forms the transition from the roof to the rafter is integrated into the pressure bar detail.