In what weather conditions can you lay Purios foam on the outside?
It is optimal to apply Purios foam on dry days, when air humidity is below 60%. At the same time, the humidity of the surface for application cannot be higher than 11%. Optimum air temperature is between 15°C and 30°C. It is crucial there are not rapid temperature changes which could subject freshly applied foam to thermal shock, and therefore it is recommended to spray closed-cell foam on the outside in spring and summer.