R4 1 Roof Insulation

The batts are available in a range of r values so you can choose the level of insulation that best suits your needs.

R4 1 roof insulation.

Bradford gold ceiling insulation is designed to reduce heat transfer through the roof of your home improving your home s comfort and energy efficiency. Earthwool r4 0 batts are the thinnest at 195mm and greenstuf r4 0 batts are the thickest at 210m. 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. My 1953 low sloped roof home in pasadena ca needs a new roof to cover the aging asphalt sheet roof which leaks in one area and which sits over some rigid insulation we re guessing 5 or 1 thick.

R4 0 insulation is a fairly safe and economical recommendation for all but the most extreme climates in australia. The earthwool glasswool insulation. The higher the r value the better the insulation is at reducing heat flow. R values are the measuring tool we use to rate the level of thermal resistance.

Though it s possible to invest in a higher r rating than r4 1 unless you re living in the coldest regions of australia it s unlikely that a higher r rating will result in any further significant energy savings. We want to employ cool roof technology to bring down the summer heat effect which radiates into the house making the interior. The insulation scheme was a great idea just implemented badly. Essentially the higher the r value the more effective the insulation is.

A recent mckinsey co. Improved insulation is a good step toward improving building efficiency particularly since the atlanta based american society of heating refrigerating and air conditioning engineers ashrae increased minimum roof insulation levels in 2007 in its standard 90 1 the first increase in 18 years and if that isn t enough to spur someone into action. Bradford gold ceiling batts are available in r values from r2 5 r4 1. The cost per bag is a 29 30 the bradford insulation batts gold ceiling r4 1 1160x430x215 suitable for different climatic zones across australia and is designed to meet the highest australian standards with the warranty lasting.

This means for example that pink batts ultra r4 0 insulation is more effective than pink batts classic r1 8 insulation. Pink batts classic is our lower r value range of insulation designed to achieve minimum building code requirements. R4 0 insulation batts are typically around 20cm thick though this does vary a little between brands. Bradford insulation batts gold ceiling r4 1 1160x430x215 is made from sand and recycled glass and covers 5 7 area.

The insulation program covered more than 1 2 million homes and it has been estimated that by 2015 it will have produced savings of approximately 20 000 gigawatt hours 72 000 tj of electricity and 26 petajoules 7 2 109 kwh of natural gas savings.