BUILDING PHYSICS 26 HEAT INSULATION / HUMIDITY REGULATION Winter heat insulation Heat insulation in construction above ground level covers all measures to avoid a need for heating during the winter and cooling during the summer. At the same time, more comfort because of a pleasant room climate and the related significant relief for the environment are key points. With insufficient heat insulation, uncomfortable and unhygienic room climatic living conditions can set in. Why heat insulation? • To increase comfort. • To prevent illnesses. • To save costs because heating costs can be reduced substantially. • To increase the value of the building (energy costs). • To protect our environment because the CO2 emissions are significantly lowered. binderholz CLT BBS With cross laminated timber CLT BBS, low energy, passive energy and plus energy buildings can be constructed. CLT BBS structures fulfil all customary heat insulation values and create a comfortable and balanced room climate due to their permeable design and their capacity to lower the peak values of the humidity in the room. Since CLT BBS is made of pinewood lamellas, which are subject to strict quality control, the moisture of CLT BBS wood in the condition as delivered is guaranteed to be within a very narrow range at 12 % ± 2 % and a controlled gross density is also assured. For this reason, an improved value for heat conductivity λ of 0.12 W/ mK can be assessed for CLT BBS according to the valid ETA-06 / 0009. Rigips dry construction systems Modern timber structures in the passive and multi-comfort design using systems of Saint-Gobain guarantee the highest measure of quality. A comprehensive product range of Saint-Gobain insulating materials is available for floors, walls, ceilings and roofs. The range includes everything from normal heat insulation to complete system solutions for residential areas and for commercial and public buildings (see example in Figure 13). Mineral fibre insulating materials of Isover with a λ of 0.034 W/ mK and WDV systems of Weber offer the greatest comfort at the lowest insulation thicknesses. Rigips facing formwork and suspended ceiling and roof structures with complete hollow space insulation (for example Isover mineral wool) additionally contribute to the reduction of the U-values of building parts. For the required improvement of the overall energy efficiency also in existing buildings, the dry interior finishing makes one of the most decisive contributions. The energy efficiency of existing buildings can be improved substantially in the finishing of existing roof structures. Besides the short construction periods, the resulting opportunity to update the building technology in the installation levels at the same time represents a particular advantage of dry construction. Moreover, planking with Rigips boards and a volumetric weight of approx. 800 and up to 1200 kg / m² can contribute to increasing the component mass that has a capacity for storing heat and thereby to the summerly comfort. Figure 13 – Exterior wall 22 b
RkJQdWJsaXNoZXIy NTQ5ODU5