San Teh Rai

Roof renavation with insulation and waterproofing with PVC membranes. 

The roof base is made of ribbed concrete slabs laid on concrete structures. The structures are already sloped. The gables are sloped to the outer sides of the building to avoid the internal drainage system. The external drainage system is not heated. 

A layer of vapor barrier film was laid on the existing prepared floor, followed by a layer of insulation and a PVC membrane. 

The skylights are covered with a profiled sheet.