A new design of a configurable scrollable awning is presented. It is intended to provide a new tool for managing snow and heating and cooling demands for air conditioning. This awning design could fit the unsolved need for a mechanically simple foldable awning that present designs have not provided. Its performance was numerically simulated, and significant energy savings were found in all seasons. This device was applied to the Skytherm roof, showing good possibilities for improving this system. The potential of this new awning that could be applied universally onto every roof was discussed. This way, this proposal can help us to change present paradigms of low-energy buildings with a new one intended for the most configurable buildings. (C) 2009 Elsevier B.V. All rights reserved.