BITUMINOUS UNDERLAY CONTROL LAYER
BYTUM 2000
The BYTUM 2000 bituminous underlay control layer is the strongest of the bituminous membranes in the Rothoblaas range. It guarantees exceptional mechanical strength and excellent durability over time, thanks to its high mass per unit area.
BYTUM 2000, the bituminous underlay control layer that ensures professional waterproofing.
This bituminous underlay control layer is designed for installation on the outer side of the roof. It can also be used as a vapour barrier, especially on very uneven surfaces such as concrete floors.
Documents
Technical data sheets
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|---|---|
| Declaration of performance (DOP) | Download |
Recommendations for installation
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BYTUM 2000
| CODE | description | tape | H
[m]
|
L
[m]
|
A
[m²]
|
H
[ft]
|
L
[ft]
|
A
[sft]
|
pcs./pallet |
|---|---|---|---|---|---|---|---|---|---|
| BYT2000 | BYTUM 2000 | - | 1 | 15 | 15 | 3' 3 3/8'' | 49 | 161 | 20 |
Technical Data
| Property | Standard | Tested Values | USC Conversion |
|---|---|---|---|
| Mass per unit area | EN 1849-1 | 2000 g/m² | 6.55 oz/ft² |
| Thickness | EN 1849-2 | 1,8 mm | 71 mil |
| Water vapour transmission (Sd) | EN 1931 | 120 m | 0.029 US perm |
| Tensile strength MD/CD | EN 12311-1 | 600 / 400 N/50mm | 69 / 46 lbf/in |
| Elongation MD/CD | EN 12311-1 | 40 / 40 % | - |
| Resistance to nail tearing MD/CD | EN 12310-1 | 220 / 230 N | 49 / 52 lbf |
| Watertightness | EN 1928 | class W1 | - |
| Resistance to temperature | - | -40 / 100 °C | -40 / 212 °F |
| Reaction to fire | EN 13501-1 | class E | - |
| Resistance to penetration of air | EN 12114 | 0 m³/(m²·h·50Pa) | 0 cfm/ft² at 50Pa |
| Thermal conductivity (λ) | - | 0,2 W/(m·K) | 0.12 BTU/(h·ft·°F) |
| Specific heat | - | 175 J/(kg·K) | - |
| Density | - | ca. 1300 kg/m³ | - |
| Water vapour resistance factor (μ) | - | ca. 20000 | - |
| UV stability | - | - | - |
| Exposure to weather | - | 3 weeks | - |
| Watertightness after artificial ageing | EN 1297 / EN 1928 | class W1 | - |
| Dopo invecchiamento artificiale - resistenza a trazione MD/CD | EN 1297 / EN 12311-1 | 500 / 300 N/50mm | 57 / 34 lb/in |
| Dopo invecchiamento artificiale - allungamento | EN 1297 / EN 12311-1 | 40 / 40 % | - |
| Flexibility at low temperatures | EN 1109 | -20 °C | -4 °F |
Composition
| TOP LAYER | non-woven PP fabric |
|---|---|
| compound | bituminous mixture |
| REINFORCING LAYER | PL fabric |
| compound | bituminous mixture |
| BOTTOM LAYER | non-woven PP fabric |
