Warm Roof Cold Roof Insulation

It has s insulation layer above the rafters and immediately below its weatherproof membrane.

Warm roof cold roof insulation.

A cold roof has the insulation placed below the structural deck which thus remains cold. With a warm roof the insulation is installed on top of the existing surface rather than in between the rafters. A warm roof building will make the entire structure of the building warm in an attempt to avoid any cold bridging. The insulation is immediately below the waterproofing layer.

A cold flat roof insulation requires more work taking off old boards and replacing them and the roof surface. If you have been considering a new roof installation looking into adding insulation to your home or are planning to build a new house you may have heard people talk about hot roof and cold roof systems. Cold bridging occurs when there is a continuous path created through the insulation. Cold deck roof a cold deck roof is where the insulation is placed between the joists rafters or in between the ceiling joists in the case of a pitch roof.

The insulation can be adhered mechanically fixed or loose laid. The thermal efficiency isn t as good as with warm roof. Cold loft insulation for pitched roofs. However you may not be familiar with these concepts particularly what they mean and the pros and cons of each.

The simplest and cheapest roof insulation is the classic cold loft option. Typically a gap will have to be left for ventilation because this is a cold area. Ventilation is required for these roofs. Warm deck cold deck or inverted roof.

Warm roof insulation ensures the entire roof structure is insulated meaning a warm deck roof is more energy efficient than a cold roof. Introduction warm cold roofs this guidance offers guidance on the difference benefits between warm and cold roofs. Insulation is placed over and between the wooden joists above the ceiling of your home s top floor. If an existing cold roof is to be refurbished consideration should be given to converting the design to a warm roof or incorporating new insulation into the roofing system to improve thermal performance.

Installing a warm roof can be extremely straight forward and simple to do. The vapour control layer is above the decking but below the insulation. The breakdown warm roof vs cold roof. Warm roofs offer a superior thermal performance and therefore come with a higher cost.

This is often just called loft insulation. Flat roof there are three options available. A warm flat roof or a built up roof bur is one where all the insulation is above the joists deck making them part of the warm fabric of the building.