Earthwool FloorShield Underfloor Batts
Knauf Earthwool FloorShield underfloor batts are made for homes with suspended timber floors, where cold air underneath can make rooms draughty in winter. The silicone-coated glasswool resists moisture, and a glass veil facing acts as a wind-wash barrier, stopping air movement from reducing performance. Friction-fitted between the joists and held with strapping, they’re easy to install, even in tight crawl spaces.

Why choose FloorShield Underfloor Batts
Wind-wash barrier
Glass veil facing keeps air movement from cutting performance
Moisture resistant
Silicone-coated glasswool that does not rot or attract vermin
Made sustainably
Recycled glass and a plant-based binder, with no added formaldehyde
Easy to install
Friction-fits between joists, even in tight spaces
Find the right insulation for your ceiling or roof

Knauf Earthwool
R2.5 FloorShield
Warmer timber floors all year
90 mm thick
420 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) 9250 2477 or Wanneroo on (08) 9206 0100.
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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.