Flat Roof Deck Insulation

A flat roof should always allow for water channelling and drainage to prevent issues such as ponding.

Flat roof deck insulation.

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. 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. That s what i m seeing on my friend s roof and now that it needs to be re roofed with tpo the tearing off of the old mod bit material is stuck to the insulation boards therfore the. This is placed over the roof joists and a board normally external ply is laid on top.

Saint gobain insulation uk manufacture and supply glass mineral wool slabs and rolls along with rigid polyisocyanurate pir boards that can be considered suitable for a wide range of applications across flat roofs whether you re looking to insulate at joist level or above the roof deck in your flat roof construction. Mechanical solutions mechanical room piping flatwork oc appliance air distribution duct insulation duct fabrication roofs interior acoustics. Warm flat roofs do not need to be ventilated as the insulation is. Mechanical solutions piping walls foundations roofs pitched curved flat.

We also have insulation boards suitable for more specialist roof applications for example inverted roof insulation and balcony insulation. Explore owens corning commercial roof and roof deck insulation products to help. 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. A flat roof where the insulation sits below the waterproof membrane and above the structural deck is a warm roof deck.

Thickness varies according to the manufacturer s specifications. We have a wide range of roof insulation products including flat roof insulation tapered insulation and pitched roof loft insulation. 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. 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.

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. Tapered insulation is compatible with many different roof types and in both new build and refurbishments. Insulation above the roof deck or air vapor impermeable insulation below the roof deck is needed for condensation control in an unvented roof.