Method of cooling air in the under-roof spaces of buildings
AssigneeLuigi Riva
InventorRudolf Stephan
Life of this patent
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Abstract
Method of cooling air in under-roof spaces of buildings, comprising the following steps: a) mixing water, cement, aluminium powder and a material selected from sand, gravel and the like, into a smooth mixture; b) spreading the smooth mixture over the roof to obtain a uniform layer of porous concrete; c) drying the layer; and d) soaking the layer with water.
Claims16
Method of cooling air in under-roof spaces of buildings, said roof being of non-insulating material, the method being characterized in that it comprises the following steps:
- a) mixing water, cement, aluminium powder and a material selected from sand, gravel and the like, into a smooth mixture;
- b) spreading said smooth mixture over said roof to obtain a uniform layer of porous concrete;
- c) drying said layer;
- and
- d) soaking said uniform layer of porous concrete with water.
A ready-prepared composition consisting of cement and aluminum mixed together in a variable weight ratio of from 10:1 to 20:1.
A method of cooling air in a space under a roof of a building, said roof of a non-insulating material, the method comprises the following steps:
- a) mixing water, a ready-prepared composition consisting of cement and aluminum mixed together in a variable weight ratio of from 10:1 to 20:1 and a material selected from sand, gravel and the like, to obtain a smooth mixture;
- b) spreading said smooth mixture over said roof to obtain a uniform layer of porous concrete;
- c) drying said layer of porous concrete to obtain a uniform layer of porous concrete;
- and
- d) soaking said uniform layer of porous concrete with water.
A method of cooling air in a space under a roof of a building, said roof of a non-insulating material, the method comprises the following steps:
- a) mixing water, a ready-prepared composition consisting of cement and aluminum mixed together in a variable weight ratio of from 10:1 to 20:1 and a material selected from sand and gravel, to obtain a smooth mixture;
- b) spreading said smooth mixture over said roof to obtain a uniform layer of porous concrete;
- c) drying said layer of porous concrete to obtain a uniform layer of porous concrete;
- and
- d) soaking said uniform layer of porous concrete with water.
Dependencies are inferred from the claim text.