Thermal properties

Basic characteristics

The housing of the petWALK doors is made of polyurethane rigid integral foam. This material combines low thermal conductivity (0.08 W/K*m according to DIN 53 432) with good mechanical and static properties and a long service life. The fact that the parts are manufactured in one piece means there is no risk of leaky seams and the homogeneous structure means there is only minimal deformation when there are temperature fluctuations.
Due to the nature of the material (open-pored foam), minimal air pockets on the surface cannot be ruled out. This is not a quality defect!
All cavities are lined with PU rigid foam moldings, which have an excellent thermal conductivity of only 0.028 W/K*m. Due to this construction, petWALK doors have a thermal conductivity according to calculation of 0.29 W/K, which corresponds to a calculated heat transfer coefficient of 0.8 W/m²K for the entire component.
The airtightness is achieved with the help of two all-round silicone seals. The tightness class 4 according to EN 12207 - 1999–11 (Q100 = 0.75 m³/hm) is significantly exceeded with a Q600 value of 0.0 m³/hm.
For all recommended installation types, the minimum surface temperature of the inner component boundary surfaces, according to ÖNorm B8110-2, with a temperature factor > 0.71, is in any case above the required limit values, so that no condensation formation and thus no risk of mold formation is to be expected.

Over-insulation of the frame
If the door is installed in a wall, the building insulation can be pulled over the outer frame of the petWALK door and a reveal can be created around the door leaf. This significantly improves the insulation properties without any major additional effort and integrates the door seamlessly into the building shell.