Heat and wind screen for the building industry

Abstract

The “heat- and wind-screen for the building industry” is an original and economical concept that increases comfort inside buildings subject to strong solar radiation. It comprises cladding the roof and/or the walls with perforated metal sheets and using spacers having an original design and disposition. The investment is low due to the proposed mounting mode and the low cost of the materials used. Savings can then be achieved by reducing the energy consumption for the air-conditioning of the building. The structure of the “heat- and wind screen for the building industry” induces important load losses for the winds on their path about the building and the building it covers exhibits a better resistance to strong winds. The “description” section successively contains the description of the device, the physical properties used, the performance measured on a model and an experimental house, a mounting technique, and a proposal for modelling the action of winds in order to justify the care to be taken when finishing the mounting of ridge tiles.

1 . Covering of roofs and vertical walls of the buildings by perforated steel sheets in order to reduce solar radiations towards the building almost completely. 
     
     
         2 . Covering is produced by spacers. the dimensions. the design and the arrangement of which on the old roof characterize the “protective shield against heat and wind for buildings”. The effectiveness of the “protective shield against heat and wind for buildings” and the low cost of installation essentially depend upon its spacers and their correct assembly. 
     
     
         3 . The device also allows to protect the original roof against stormy winds by placing obstacles on its path, producing large losses of loads (wind energy). These load losses are due to the nature of spacers, their arrangement as well as because of perforated steel sheets themselves. These load losses have an effect of considerably reducing the pulling effect or effect of detachment, which is observed on the full (non-perforated) steel sheets placed in the same conditions of exposure to wind.