Flat Roof Deck Insulation

Tapered insulation is compatible with many different roof types and in both new build and refurbishments.

Flat roof deck insulation.

A flat roof where the insulation sits below the waterproof membrane and above the structural deck is a warm roof deck. Mechanical solutions mechanical room piping flatwork oc appliance air distribution duct insulation duct fabrication roofs interior acoustics. Tapered insulation is a great flat roof solution which allows falls to be created with specially shaped insulation rather than requiring screed or timber firrings. This is placed over the roof joists and a board normally external ply is laid on top.

Tapered insulation as a flat roof solution. Mechanical solutions piping walls foundations roofs pitched curved flat. Warm deck flat roof insulation is now the standard way to insulate a flat roof click to enlarge flat roofs for example on extensions bathrooms and dormer windows are not the best of ideas. Insulation above the roof deck or air vapor impermeable insulation below the roof deck is needed for condensation control in an unvented roof.

A flat roof should always allow for water channelling and drainage to prevent issues such as ponding. Is it common for flat roofs with a 2 insulation on top of the deck be covered with modified bitumen without adding plywood on top of the insulation boards. Flat roof u value 0 18 w m2k 2 warm deck flat roof the type of insulation for this is usually of a rigid type and the thickness will vary depending on the manufacturer s specifications. Cold flat roofs are typically avoided as you d need to install ventilation which can prove problematic for many reasons relating to space labour costs etc.

The ratio of insulation above the roof deck or air permeable insulation below the roof deck is a matter of climate and interior conditions. Explore owens corning commercial roof and roof deck insulation products to help. Thickness varies according to the manufacturer s specifications. We also have insulation boards suitable for more specialist roof applications for example inverted roof insulation and balcony insulation.

They lose loads of heat and are prone to leaking causing the materials to deteriorate. Warm flat roofs do not need to be ventilated as the insulation is. Ponding can lead to premature failures in the waterproofing system and the need to refurbish an area or the entire flat roof before the end of its intended design lifetime.