Green Building with BREEAM Energy Ene 1: Energy efficiency Criteria Hilti contribution Aim Buildings account for about 40 percent of energy use and represent a significant po- To recognize and encourage buildings tential for reducing energy consumption and greenhouse gas emissions. that are designed to minimize their op- erational energy consumption. Uncontrolled air leakage in buildings affects both the heating and cooling of buildings. The weak points in buildings are doors and windows, cable and pipes penetrations Assessment criteria: and the structural joints. These weak points in buildings can be effectively closed and Credits are awarded for percentage im- filled with Hilti foam and firestop products. Both product ranges show excellent adhe- provement over local building regulations sion to the surface and are impermeable to air and, in case of fire, toxic gases. for the energy efficiency of buildings. Hilti firestop systems provide thermal resistance, reducing the amount of energy needed for climate control and any added materials needed for soundproofing. This credit only applies to Hilti materials when used within the building envelope. Several Hilti firestop products are designed to provide a maximum in airtightness and thermal insulation and support the BREEAM energy efficiency criteria. Hilti foam systems show good thermal insulation properties and therefore reduce heat loss which results in lower heating and cooling costs. Hilti foams provide equal thermal insulation to standard mineral wool and insulation boards. Several Hilti foam products are designed to provide a maximum in airtightness and thermal insulation which con- tributes to support the BREEAM criteria as well. page 14