Roof insulation will entail extra costs as well.
Roof insulation cost per square metre.
In preparing the below insulation cost calculators we ve assumed that you are building or renovating a regular house on the outskirts of auckland.
Installing an epdm roofing costs about 45 per m on average.
The thickness the size of the area you want to insulate how it s installed and the type of spray foam insulation.
Lead bay roofs are even more expensive starting from 300 per m2.
Polyester batts without foil backing often cost about.
As heat rises 25 of the heath in a house gets lost through an uninsulated roof.
For fibreglass expect to pay from 90 per m2 and for fire glass bay roof from 250 per square metre.
So prices strongly vary depending on the work activities.
Rubber roofs costs start from 80 per m2.
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.
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.
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.
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.
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.
Our example house is a single storey house with an exposed raised underfloor.
Hear from an expert.
The cost of insulation per square metre comes down to the brand type and the r value.
Flat roof cost per square metre.
Insulation specialists pricewise insulation explains the cost of ceiling insulation materials.
Considering the high energy costs and grants for roof insulation you can earn back the investment pretty fast.
Insulating the roof is a very smart investment.
To calculate how much spray foam insulation cost per square metre depends on 4 main factors.
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.
Flat roof replacement costs.
