Flat Roof Insulation Uk

A flat roof should preferably be insulated from above.

Flat roof insulation uk.

Tackle heat loss where it matters most up to 25 of a buildings heat loss is through the roof. This is best done when the roof covering needs replacing anyway. All our boards are backed up by rigorous quality assurance and plain english technical support. A layer of rigid insulation board can be added either on top of the roof s weatherproof layer or directly on top of the timber roof surface with a new weatherproof layer on top of the insulation.

Achieving a u value of 0 20w m meaning your roof will be better insulated than your walls will need 120mm thickness of rigid foam or 200mm of mineral wool or natural insulation. A lower u value indicates better insulation properties hence u value requirements usually specify a maximum value. This may help with condensation but causes such a loss of heat that it has been banned in scotland. This means that your approach to insulation will differ from a standard pitched roof.

This means there is a vapour control layer in the ceiling and cross ventilation at the eaves or the top of the walls. With a flat roof this issue does not arise but the u value constraint and the amount of insulation needed is just the same. This method is especially applied to existing flat roofs which are restricted to a certain height. A cold flat roof is insulated from the inside.

When an insulated roof is built from new the insulation layer can be included at different levels within the structure. A flat roof should have a layer of insulation built into the structure at some level. A cold roof has some disadvantages which is why people often choose a warm roof. Our insulation solutions for flat roof applications provide both excellent fire and acoustic performance in addition to high levels of thermal performance.

The insulation is placed underneath the roof covering and the roof construction. Loading and impact resistance is also required with compressive strength being an important consideration when selecting flat roof insulation solutions. In most cases there will not be a loft in a building that features flat roofing. Ecotherm offers a comprehensive quality range of rigid flat roof insulation products.

Flat roof insulation flat roofs are a less common sight in the uk owing to their typically higher maintenance requirements when compared to other forms of roof construction although they can be a versatile form of roof construction.