When we painted this flat roof with solar reflective paint, I left a test area so I could see the temperature difference of the old flat roof covering without solar reflective paint and with solar reflective paint.
GRP stands for ‘Glass Reinforced Plastic’ a material made from a polyester resin, which is reinforced by chopped strand mat glass fibres to form a GRP laminate. It is a very popular composite material to use due to the fact that not only is it very strong but also surprisingly light.
A vapour control layer helps you shield your building from the consequences of condensation. Condensation is generated when warm moist air rises and condenses into a liquid on contact with the cooler areas above the insulation. The notion behind a vapour control layer is to install it on the room side of the insulation so it stops the passage of warm moist air entering the structure.