The Constant Force post rooftop anchor effectively manages the load between itself and the roof limiting the load on the roof to a safe pre-determined level that ensures integrity of the fixings and avoids inflicting damage on the roof. The Constant Force post can be used on standing seam roofing, using split clamps to fix to the seams, and can be installed on single-ply membrane roofing. Flexible Lifeline Systems, Houston, TX.