Benefits of Ventilated Wall Systems
1) energy efficient
- Up to 1/3 savings on energy usage
- Elimination of thermal bridges
- Lower heating/cooling requirements result in less pollution entering the atmosphere
The discontinuity of shapes and materials - so typical of contemporary buildings - increase the occurrence of thermal bridges that cause an unbalanced temperature distribution within walls and make it easier for molds and condensation to form. In a Ventilated Wall System, continuous external insulation provides uniformity in thermal protection, while the cladding material stops direct sun radiation. Together, they reduce the unbalanced temperature distribution and enhance the energy efficiency of the building.
2) Cost Savings
Porcelain tile offers the perfect cladding alternative as its overall costs are significantly less than natural stone products (example: porcelain costs 20-25% less than granite). Freight and installation costs are also significantly less, due to tile’s lower weight.
This system has a wide variety of design and colors with porcelain tile. The system can accommodate square and rectangular sizes (horizontally and vertically) in large formats. A multiplicity of finishes from polished to matte and virtually unlimited color ranges can be obtained through the use of beautiful porcelain products.
3) Installation Efficiencies
The simplicity of the anchor bracket structure coupled with the pre-plotted design of the aluminum framework minimizes installation time. The use of porcelain, which weighs less than natural stone products, also reduces time and labor costs. The mesh backing applied to each piece provides an added measure of safety to the installation. In the event of breakage or defacement, individual tiles can be easily replaced.
4) Better Sound Insulation (“sound deadening”)
Ventilated walls provide better absorption of outside noises, lowering the level by 10-15 dB. this “sound deadening” contributes to healthier, safer living and working environments.
5) eliminates condesation effect
When two environments separated by a wall have different relative temperatures and humidity, steam tends to migrate within the wall towards the nearest area in the room that has the lowest effective pressure. If during this movement, and following the lowering of the temperature, pressure decreases faster than the saturation pressure, condensation occurs. By positioning the insulation element on the outside of the wall, the curves of effective and saturation pressure will never meet, hence avoiding the creation of condensation.
6) water tightness
The external cladding is normally installed with open joint widths measuring MINIMUM 5 mm. This very narrow opening does not compromise protection from heavy rain or gusting winds. The insulation is also water-repellent.
7) thermal stability
When the outside cladding material is heated by solar radiation the density of the air within the ventilation cavity varies vis-á-vis the ambient air, causing an upward flow. This effect is particularly useful in summer, allowing dispersal of such heat as is not reflected away by the outside face. From a temperature and humidity point of view, the seasonal behavior of the facade can be summarized as follows:
Much of the angular radiant heat is reflected away from the face. The heat that does enter triggers the chimney effect so that only a minimal part of the heat flow is absorbed by the building. The reflective effect can be heightened by using light colors for the face. Additionally, the insulation retains the cool air produced by the air conditioning inside the building. Building remains cooler in summer.
The “chimney effect” is lessened because the external ambient air and the air inside the cavity are approximately the same temperature and density; however, it offers some effect on sunny days. Primary benefits accrue because the waterproof insulation prevents heat loss, i.e. retains the heat generated by heating systems inside building. Building remains warmer in winter.