| | | Thermal dispersion The old houses usually hold walls with very low thermal insulation value, the result is an high heat energy dispersion. Even "heating up" it doesn't manage to obtain a comfortable condition due to the cold radiation from the walls, so at the end we have only a further calorific energy waste with additional more cost and atmospheric pollution. Condensation consequences The low level of insualtion for this kind of construction bring to conditions for condensate the vapour on the internal side of the wall, this will fix dust on the colder area like corners, structural building beams with raise of moulds causing aesthetic and physical degradation (chalking, detaching, modern wallpaper decompositions) compromising both the environmental hygiene and well-being Another problem connect with this walls is the phenomena of interstitial condensate usually shown at the interface of the external plaster layer and the brick. First typical evidence of the interstitial condensate is shown tho-rugh the facade covering chalking (plastering, painting), then the second step will be plaster powdering and brick scaling, this are ideai for freeze thaw damage causing plaster detach, the following rainwater penetration give more power to the freeze thaw degradation cycles with acceleration in the facade deterioration not limited to the external plastering but also extend to ali structural core of the mansory. PIZ cladding system advantages It eliminates the condensate.The thermic insulation is increased about four times, it gives an healthy and confortly habitat conditions, it reduces the heating costs, clearing and finishing the walls in an unique operation, matching up the flexibility of an aesthetics finishing that represents in the best way the building, a produci recognized for its quality by "Product Certifications". Dry installation means possibility for install it in any season and almost any wheater condition, directly on almost any surface without special preliminary preparation like cleaning the support wall, or removing previous finishing layer, like plasters rustic tiles or others with consequence of saving money. | | The condensate problems in the new construction typology with good insulation level, the insulator layer is locate near to the internal surface, in that case is high the risk for the interstitial condensate to the interface between the external side of insulator and the support brick wall (see red area on graphic), it causes leakage of the insulating power (increase of the the derivated damages like economic loss and environmental comfort), the moisture in case of facade plasters or home paints with low water vapour permeability it causes quick deteriorations heavy detachments connect with further improve of damage due to the freeze thaw cycles the consequence is high costs for the restoration and sometimes the fixing of the problems are only temporary and not definitively. PIZ panelling advantages It doesn't form interstitial condensate inside the wall stratigraphy the wall can be realize built from a single brick layer (eliminating the internal home bricks lining), with internal volume increase (favourable in case of restricted boundaries). Less building works (plastering and external finishing) with consequent reduction of the building erection time and economic savings. Elimination of unnecessary wetted works, with reduction of drying process time particulary favourable during fall and winter season. The insulation install on external layer of the wall improve the thermal inertial behaviour of the building with direct effect of improve the thermal wellbeing reducing the wall temperature difference for internal side between night and day time or between thermal ordinary set-point and reduce setpoint period. A less waving temperature of the wall mean more uniform energy radiation from the walls with more comfort for the people that live in such house. | | |
| | | existing external wall thermic insulation K = 1,756 (W/m2K) | | | new traditional building thermic insulation K = 0,477 (W/m2K) | | |
| | | external wall paneled with PIZ thermic insulation K = 0,477 (W/m2K) | | | external wall paneled with PIZ thermic insulation K = 0,475 (W/m2K) | | |