Earthwool
Ceiling Batts
Earthwool ceiling batts are soft, easy-to-handle glasswool insulation that keeps your home cooler in summer and warmer in winter. Made with Knauf's ECOSE Technology, a bio-based binder with no added formaldehyde, they're available from R3.5 to R8.0 in widths to suit most ceiling joists, whether you're building new or topping up an existing ceiling.
Why choose Earthwool Ceiling Batts
Our best seller
Our highest selling ceiling batt range.
Six R-values
From R3.5 to R8.0, for new homes and top-ups.
Delivered across WA
Fast delivery across Perth & WA
Soft to handle
Easier, more comfortable installation.
Choose your R-value
Knauf Earthwool
R3.5 Ceiling Batts
Everyday thermal comfort
175 mm thick
430 / 580 mm wide
Knauf Earthwool
R4.0 Ceiling Batts
Enhanced thermal performance
195 mm thick
430 / 580 mm wide
Knauf Earthwool
R5.0 Ceiling Batts
High thermal performance
210 / 230 mm thick
430 / 580 mm wide
Knauf Earthwool
R6.0 Ceiling Batts
Superior thermal resistance
275 mm thick
430 / 580 mm wide
Knauf Earthwool
R7.0 Ceiling Batts
Advanced thermal performance
330 mm thick
460 / 620 mm wide
Knauf Earthwool
R8.0 Ceiling Batts
Maximum thermal performance
350 mm thick
460 / 620 mm wide
Not sure where to start?
Tell us about your home or project and we'll recommend the right solution and R-value, then send you a clear quote.
Prefer to talk?
Call Midvale on 08 9274 2147 or Wanneroo on 08 9405 9170.
Get in touch
We supply the industry's best brands
Perth Insulation Supplies
Thermal and acoustic insulation for homes, builders and commercial projects across Perth and WA.
Opening hours
Mon to Fri 6:30am to 4:30pm
Sat 6:30am to 12pm
Sun closed
Fast and reliable insulation supply across Perth Metro and regional WA.