Inverted Roof Deck Insulation
This makes it the only material suitable and approved for inverted roof applications.
Inverted roof deck insulation. Jablite inverted roof insulation is a unique innovative closed cell expanded polystyrene eps with low water absorption properties kiwa certified bar 19 098 s a uk suitable for use on flat roofs with zero pitch and slopes up to 10 resistant to the effects of freeze thaw. Tectum e tectum e n acoustical roof deck description. Three in one composite roof deck panels provide acoustics insulation and a nailable surface that accepts a wide variety of roofing materials. It is also protected from damage by traffic on the roof such as people walking the movement of equipment and so on.
The great benefit of inverted roofs is that the insulation protects the membrane from extremes of weather such as frost uv exposure and the expansion and contraction that comes about from summer winter temperature cycles which can be as much as 80 c on some roofs. Rigid extruded polystyrene insulation has minimal water absorption due to its closed cell structure. An inverted roof is quite simply where the waterproofing layer is installed over the structural deck rather than over the insulation.