This item
ROCKWOOL Rock Chill Rock Chill · 75 mm · 600 × 4,000 mm
- Thickness (mm)
- 75
- Width (mm)
- 600
- Length (mm)
- 4000
ROCKWOOL Rock Chill above-ceiling insulation
A foil-wrapped stone wool roll laid on top of plasterboard and T-bar ceilings, for new and existing homes, to cut the heat coming through the ceiling.
- Thickness
- 75 mm
Product details
Stone wool roll fully wrapped in aluminium foil · 75 mm · 0.6 × 4 m
- Thickness
- 75 mm
What is it?
Rock Chill is ROCKWOOL's above-ceiling insulation: a roll that unrolls into a rectangle, fully wrapped in aluminium foil, 0.6 m wide, 4 m long (2.4 m² per roll) and 75 mm thick. Rolls needed = ceiling area (m²) ÷ 2.4.
What is it made of?
Stone wool (rock wool) · Facing: Fully wrapped in aluminium foil · Roll
What can it help with?
Which sizes are available?
Thickness 75 mm — Request a price
Limitations to know
Keep it about 3 inches away from light fittings and wear gloves when installing (manufacturer's note).
Where does the data come from?
Rock Chill — 401 361-0825 V6 (TH)
Technical data from the manufacturer's documents ROCKWOOL · Checked 29 Sept 2026
Technical specifications
All values come from the manufacturer's documents, with conditions and test standards. Values the documents do not state are not shown.
| Property | Value | Conditions / standard | Source |
|---|---|---|---|
| Reaction to fire | Non-combustible, class A1 | EN 13501-1 | Rock Chill — 401 361-0825 V6 (TH), p. 1 |
| R-value (insulation only) | 12.17 hr·ft²·°F/Btu | — | Rock Chill — 401 361-0825 V6 (TH), p. 1 |
| Heat reflection | up to 95% | — | Rock Chill — 401 361-0825 V6 (TH), p. 1 |
| Area per roll | 2.4 m² | 0.6 × 4 m | Rock Chill — 401 361-0825 V6 (TH), p. 1 |
Models and sizes available
| Model | Thickness (mm) | Width (mm) | Length (mm) |
|---|---|---|---|
| Rock Chill | 75 | 600 | 4000 |
Pack quantities and prices — ask us on LINE
Applications
CeilingsHeat insulation above the ceiling and less sound through itHomesHeat, neighbour noise and echo at home
Highlights
- Lays straight onto the ceiling
- Fully foil-wrapped
- 2.4 m² per roll
- Non-combustible, class A1
Installation overview
- Measure the ceiling area (width × length) and divide by 2.4 m² to get the number of rolls
- Lay the rolls along the ceiling
- Repair any torn foil with aluminium foil tape
Always follow the manufacturer's installation and safety instructions.
Related products
Alternatives
Building thermal insulation · Stone wool
ROCKWOOL Cool 'n' Comfort RL
- Thickness
- 25–50 mm
- Density
- 40–60 kg/m³
- Thermal conductivity (λ)
- 0.034–0.035 W/m·K
Helpful before you choose
Not sure which model suits your job?
Send the area details or site photos — we'll suggest the model and quantity
Ask via LINE