Patent ID: 8287984

Claim:
Under-roof screen ( 100 ) comprising: a first layer ( 102 ) produced from a first metallic or metallised material forming a thermal reflection barrier; a second layer ( 108 ) produced from a woven material and bonded to the first layer ( 102 ); a third layer ( 106 ) produced from an insulating material and bonded to the second layer ( 108 ); and a fourth layer ( 104 ) produced from a second metallic or metallised material forming a thermal reflection barrier and bonded to the third layer ( 106 ), wherein the first layer ( 102 ) and the second layer ( 108 ) are provided with micro-perforations ( 110 ) providing permeability to water vapour and impermeability to water and the micro-perforations ( 110 ) are aligned through the first and second layers ( 102 , 108 ), and wherein the fourth layer ( 104 ) is provided with perforations ( 112 ) providing permeability to water vapour and the micro-perforations ( 110 ) are smaller in size than the perforations ( 112 ).