Environment check The check of the ambient conditions particularly regards the following steps of the lining cycle: blasting application of adhesives application of lining This check has general validity and is referred also to repairs and to any treatment involving blasting or grinding of surfaces to be lined, or the use of adhesives. The checks must be performed at least one a day, particularly in the morning and before start of the lining operations. In case of worsening of weather conditions, further checks must be made. In case the conditions are not suitable, the working area must be conditioned, by means of heated or dehumidified air, or suitable measures must be taken in order to reach the correct operating conditions: otherwise the process can not start until the reaching of requested ambient conditions.