What is it?
URSA TERRA 76R and a panel rolled up water repellent in mineral wool, CE marked according to EN 13162. Guarantees thermal insulation (declared lambda 0.038 W/mK) and acoustic for walls, false walls and false ceilings in drywall and masonry systems.
Variants and roll coverage
- 45 mm — dimensions: 0.60 × 14 m/strong> → 8.4 m2 per roll
- 70 mm — dimensions: 0.60 × 10 m/strong> → 6.0 m2 per roll
- 95 mm — dimensions: 0.60 × 7 m/strong> → 4.2 m2 per roll
Commercial note: some retailers offer packages with 2 rolls (e.g. 16.8 / 12 / 8.4 m2 per pack). On this store we sell single rolls to make DIY easier.
Why choose it?
- Performance: lambda 0.038 W/mK on all thicknesses; Euroclass A1 fire reaction; mu = 1.
- Quick installation: roll format, easy cutting, good support in the cavity.
- Acoustic comfort: open-cell fibrous structure useful for damping cavity resonances.
Main data
| Thicknesses |
45 / 70 / 95 mm |
| Roll dimensions |
45mm: 0.60x14m; 70mm: 0.60x10m; 95mm: 0.60x7m |
| Roll cover |
8.4 m2; 6.0 m2; 4.2 m2 |
| Declared thermal conductivity |
lambda 0.038 W/mK (all thicknesses) |
| Thermal resistance R |
1.15 (45 mm) • 1.80 (70 mm) • 2.50 (95 mm) m2K/W> |
| Reaction to fire |
A1 |
| Vapor resistance factor |
mu = 1 |
How to use it (step by step installation)
- Structure: prepare the metal framework (or check the masonry cavity). Check for flatness and verticality.
- Cut: unroll 76R and cut a strip slightly higher than the available space (1–2 cm) with a cutter for a precise fit.there>
- Insertion: place the roll without compressing excessively; avoids gaps along studs and joints.
- Junctions: bring the edges together without overlappingIn false ceilings, use suitable fixings and provide for counter camber.
- Closure: fit the sheets (plasterboard or equivalent) as per the system, tape and fill.
Practical advice
- Calculate the m2 and add +5-8% for scraps.
- Wear PPE (gloves, glasses) and work in a ventilated environment.
- Store rolls indoors and flat, away from moisture and direct heat.
FAQ
What thickness should I choose?
45 mm for lightweight internal walls; 70 mm for higher-performance partitions and false ceilings; 95 mm when greater thermal resistance is required.
Is it fire resistant?
Yes, Euroclass A1.
How many m2 does each roll cover?
8.4 m2 (45 mm) • 6.0 m2 (70 mm) • 4.2 m2 (95 mm).
Why is it sold as a single roll here?
Because when DIY, it's more practical to buy only what you need. Some stores sell packs of two rolls, but we also offer single rolls.
