Fixing and buying guide
EARTHWOOL GLASS MINERAL WOOL DRITHERM 32 ULTIMATE 1200 X 455 X 100mm (6) - 3.28mtr sq
What this product is and who it's for
Dritherm 32 Ultimate is a premium cavity wall insulation batt manufactured from glass mineral wool. It's engineered for standard cavity wall construction in domestic properties, providing thermal efficiency and fire performance. This product suits builders, renovation contractors, and experienced DIY customers installing insulation in new builds or retrofit projects where cavity width and depth specifications match the 1200 x 455 x 100mm dimensions.
- Thermal conductivity: 0.032 W/mK for consistent performance
- Pack size: 6 batts covering 3.28 square metres
- Individual batt dimensions: 1200 x 455 x 100mm depth
- Glass mineral wool construction with proven durability
Compatibility and sizing
Before ordering, verify your cavity wall dimensions match this product's specifications. The 100mm depth is designed for standard cavity widths; check your building plans or existing cavity measurements to confirm compatibility. The 1200mm length suits most standard wall heights when batts are positioned vertically. The 455mm width is engineered for typical cavity spacing in UK construction.
- Confirm cavity depth is 100mm or slightly less
- Check cavity width accommodates 455mm batt width
- Verify wall height allows 1200mm vertical installation
- Calculate coverage: one pack covers 3.28 square metres
Pre-installation checks and preparation
Inspect the cavity for debris, mortar droppings, and obstructions before installation begins. The cavity must be clean and dry to ensure proper batt placement and performance. Check that cavity ties are in place and undamaged. Ensure you have appropriate safety equipment including gloves and a dust mask, as mineral wool requires standard handling precautions. Plan your installation sequence to work systematically across the wall.
- Clear cavity of debris and excess mortar
- Inspect cavity ties for correct spacing and condition
- Ensure cavity is dry before installing batts
- Wear gloves and dust mask during handling and installation
- Work methodically from bottom to top or in planned sections
Pack contents and coverage
This pack contains six individual batts of Dritherm 32 Ultimate, each pre-cut to 1200 x 455 x 100mm. The total coverage is 3.28 square metres. Calculate your total wall area requiring insulation and order sufficient packs to complete the job, allowing for any cutting or waste. Store packs in dry conditions before installation to maintain product integrity.
- Pack contains: 6 batts
- Total coverage: 3.28 square metres per pack
- Each batt: 1200 x 455 x 100mm
- Order additional packs for larger areas or multiple walls