These minimum insulation levels are higher if your roof has an upper surface absorbance value of more than 0 4.
Roof insulation batts ratings.
Roxul rockwool batts are 3 5 thick and have an stc rating of 45 and an nrc rating of 1 05.
Roofs and ceilings work in conjunction when it comes to insulation.
It is more rigid than other batts but is a pre construction product.
Gold ceiling batts bradford gold ceiling insulation can reduce your energy bills for heating and cooling by up to 45 leading to a decrease in your energy consumption and in your energy bills.
Bradford gold ceiling insulation is designed to reduce heat transfer through the roof of your home improving your home s comfort and energy efficiency.
This means for example that pink batts ultra r4 0 insulation is more effective than pink batts classic r1 8 insulation.
The higher the r value the better the insulation is at reducing heat flow.
Install insulation under the roofing material to reduce radiant heat gain.
Bradford gold hi performance ceiling batts are made in australia to withstand australian conditions and boast the highest r value ratings of r5 0 to r7 0.
The greater the r value the greater the resistance to heat transfer and the greater the insulating effect and subsequent energy savings.
The r value is a measure of the insulation batt s resistance to heat flow also known as thermal resistance.
The higher the r value rating the more effective the insulation is as the batts provide a better level of the resistance to heat in your home.