Roof Insulation Cost Per Square Metre

Insulating the roof is a very smart investment.

Roof insulation cost per square metre.

Flat roof prices start from 40 per m2 for felt roofs. So prices strongly vary depending on the work activities. In preparing the below insulation cost calculators we ve assumed that you are building or renovating a regular house on the outskirts of auckland. When the old roofing material and the roof construction need to be removed the total cost will be much higher.

A reflective foil with an additional air cell barrier for greater thermal insulation that complies with bca 6 star energy efficiency regulations costs about 350 for a 22 5mx1350mm roll roughly 30 sq. Flat roof replacement costs. Insulation specialists pricewise insulation explains the cost of ceiling insulation materials. The thickness the size of the area you want to insulate how it s installed and the type of spray foam insulation.

The cost of insulation per square metre comes down to the brand type and the r value. Roof insulation will entail extra costs as well. Lead bay roofs are even more expensive starting from 300 per m2. As heat rises 25 of the heath in a house gets lost through an uninsulated roof.

Considering the high energy costs and grants for roof insulation you can earn back the investment pretty fast. For an ordinary 100m2 existing ceiling with reasonable access and no significant extra obstructions installed with standard r3 5 glass wool insulation you can expect to pay close to 550 for the insulation itself and a similar fee for the installation work. Roof insulation can be a highly effective technique to passively improve the heating and cooling performance of your home particularly if the roof faces north above commonly used living areas and bedrooms. Flat roof cost per square metre.

Installing an epdm roofing costs about 45 per m on average. Glass wool batts without foil backing may cost around 60 per 9 square metre pack. Per square metre rates for roof insulation can cost between 40 per square metre to 100 per quare metre for labour and supply of materials. The average cost of insulation panels the most common roof insulation is about 25 per square metre while spray foam insulation is at least 30 per square metre so we would estimate that the average cost of roof insulation in a property would be about 400 to 500.

To calculate how much spray foam insulation cost per square metre depends on 4 main factors. Our example house is a single storey house with an exposed raised underfloor. For fibreglass expect to pay from 90 per m2 and for fire glass bay roof from 250 per square metre. The exact material you use will have an impact on the cost of the roof with basic felt solutions costing around 50 per square metre for the material itself and more high end materials such as modern grp a form of fibreglass going up to 90 per square metre but allowing unlimited options in terms of colour and generally being more long lasting.