Inverted Pitch Roof

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.

Inverted pitch roof.

Invented by dow in the late 1960 s an inverted roof system uses dupont styrofoam brand xps insulation to protect the membrane helping improve the performance and longevity of the entire roof system. Roofs are significant investments as they impact nearly every other function and feature. 5 reasons to choose an inverted roof 1. Cut total roof life costs.

While the enhanced longevity and energy efficiency afforded by inverted roofs is. The result of joining two or more gabled roof sections together forming a t or l shape for the simplest forms or any number of more complex shapes. A simple roof design shaped like an inverted v. Nothing on the surface of the roof relates.

An inverted roof also known sometimes as a protected membrane or pmr roof uses the same materials as a conventional roof but places insulation on the top of the membrane. Benefits of inverted roofs. An inverted roof also referred to as a protected membrane or upside down roof is form of flat roof in which the waterproofing layer is beneath the thermal insulation rather than above it. A sub variation of the mono pitch is known as saw tooth as pictured below.

This is the dual pitched or double sloped style characterized by it s inverted v appearance. The roof type in question has a number of different names including inverted pitch roof butterfly roof and even london roof. It is as one of its names suggests a pitched roof but it generally cannot be seen from ground level as it is concealed behind a parapet wall. Rigid extruded polystyrene insulation has minimal water absorption due to its closed cell structure.

This makes it the only material suitable and approved for inverted roof applications. An inverted roof is quite simply where the waterproofing layer is installed over the structural deck rather than over the insulation. Depending on the application the surface structure on top of the thermal insulation will consist of poured concrete coarse aggregate fine aggregate and tiling or dirt soil and ground vegetation.