The Tri-Stand Basic is laterally adjustable. It is pushed onto a base plate that is attached to the rafter. Even the base plate gives the craftsman flexibility. This is because it is equipped with a total of twelve holes so that the base plate can be screwed to the centre of the rafter. As the bracket of the hook is then pushed into a channel that extends across the entire width of the base plate, the tradesman can position the hook precisely under the corrugated valley of the roof tile. The upper end of the bracket is equipped with a diagonal slot so that the installer also has some flexibility here to adjust the mounting rail.
See also: New roof hook with greater load-bearing capacity
The Tri-Stand Plus has a similar basic design. However, the bracket of the hook is split in two. Both parts are screwed together in slotted holes. This gives the installer the additional option of adjusting the height of the hook to compensate for unevenness on the roof. (mfo)
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