Do ceiling batts deteriorate over time?
Is there a life expectancy of Pink Batts? I have an ceiling that was batted I’d say at least 20 years ago and they are looking flat and thin. should they be replaced?
Is there a life expectancy of Pink Batts? I have an ceiling that was batted I’d say at least 20 years ago and they are looking flat and thin. should they be replaced?
May 13th, 2009 at 9:06 pm
Hi there…
Pink Batts meets the requirements of NZBC B2.3.1a) 50 years. In the past the insulation requirements were lower than they are now, so the product looks much thinner than todays products. It will still be performing, so don’t throw it out, simply install another layer of Pink Batts over the top of your existing insulation.
Thanks Alison Roberts
Tasman Insulation
January 31st, 2010 at 7:24 am
How thick (mm) are the 2.9 rated pink batts?
February 10th, 2010 at 10:52 pm
Hi there, According to the product guide on the Pink Batts website the nominal stabilised thickness is:
Ceiling batts R 2.6 = 140 mm, R 3.2 = 170 mm
Wall Batts R 2.8 = 90 mm
Note The wall batts have to be thinner (and more rigid) for a given R value so that they will fit in the wall cavity. This is achieved by adding plastic fibres to the batts, and is also a reason why wall batts cost so much more than ceiling batts .
Sarah Free, energy advisor Wellington region