Inverted Warm Roof Insulation

Rigid extruded polystyrene insulation has minimal water absorption due to its closed cell structure.

Inverted warm roof insulation.

The insulation is installed over the waterproof membrane and then protected by pavers planting or loose gravel ballast typically 20 40 mm diameter washed pebbles. The inverted roof 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. These shield the insulation from the effects of uv light and wind uplift. The inverted roof concept has other benefits.

Inverted warm roof variation. Simply defined as a type of roof construction where the waterproofing layer lies beneath the insulation instead of above it as in other forms of roofing inverted roofs ensure that the complete roof construction including roof covering is kept at warm temperatures during winter months and at moderate temperates during the summer months. Installed in any weather added to without stripping the waterproof layer easily lifted and replaced re used if the building is altered the insulation for an inverted roof must. Resist water absorption be unaffected by freeze.

Green roofs a green sedum or grass roof can also be put onto a flat roof provided it can take the weight. The insulation can be. An inverted roof system is a variation on the warm roof.