Abstract: Proposed is a burl foil that can be installed as insulation in shed-like buildings, in particular greenhouses, where a Jalousie-like movement of the burl foil from an at-rest position into a use position is said to be possible, without that the required space for stacking the burl foil in the at-rest position be too large. Additionally proposed are attachment means for the burl foil to drawing means or wire ropes that are embodied as simply structured, commercially producible clamping parts that can also be installed by lay persons on any whatever burl foils.