The waterproofing membrane is placed directly on top of the insulation.
Insulation is generally applied directly on top of the steel, concrete, or wooden deck, with a vapour check layer often installed below the insulation – towards the deck – to make sure that no moisture can penetrate the construction.
This helps to keep hot air outside of the building and keep the indoor climate at a comfortable level1.
ROCKWOOL warm roof insulation is made from stone wool and designed to achieve maximum thermal performance. It’s also non-combustible, with exceptional acoustic properties.