BITUMINOUS UNDERLAY CONTROL LAYER
BYTUM 1500
The BYTUM 1500 bituminous underlay control layer guarantees a very high mechanical strength, with consequent durability, thanks to its high mass per unit area. Very strong, in the version with double tape it creates a perfect adhesive joint, ensuring a quick installation and a professional sealing.
BYTUM 1500, the resistant and durable bituminous underlay control layer.
This bituminous underlay control layer must be installed on the outside of the roof. It can also be used as a vapour barrier, especially on 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 1500
| CODE | description | tape | H
[m]
|
L
[m]
|
A
[m²]
|
H
[ft]
|
L
[ft]
|
A
[sft]
|
pcs./pallet |
|---|---|---|---|---|---|---|---|---|---|
| BYT1500 | BYTUM 1500 | - | 1 | 25 | 25 | 3' 3 3/8'' | 82 | 269 | 15 |
| BYTTT1500 | BYTUM 1500 TT | TT | 1 | 25 | 25 | 3' 3 3/8'' | 82 | 269 | 15 |
Technical Data
| Property | Standard | Tested Values | USC Conversion |
|---|---|---|---|
| Mass per unit area | EN 1849-1 | 1500 g/m² | 4.92 oz/ft² |
| Thickness | EN 1849-2 | 1,3 mm | 51 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. 110000 | - |
| 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 |
Specifications
er sealing.
Composition
| TOP LAYER | non-woven PP fabric |
|---|---|
| compound | bituminous mixture |
| REINFORCING LAYER | PL fabric |
| compound | bituminous mixture |
| BOTTOM LAYER | non-woven PP fabric |
