Universal Vapour Permeable Underlay 50m x 1m from Marley | Swansea
Product Code: MAR2/MA33150
Universal Vapour Permeable Underlay 50m x 1m
Dimensions 50m long x 1m wide
Minimum overlaps
|
Roof pitch (°) |
Horizontal laps (mm) |
Vertical laps (mm)
|
|
|
Not fully supported Fully supported |
Not fully supported Fully supported |
||
|
12.5 - 14 2 |
225 |
150 |
150 |
|
15 - 34 |
150 |
100 |
150 |
|
35+ |
100 |
75 |
150 |
Marley Eternit Universal Vapour Permeable and Non-Breathable underlays are high performance roof membranes which are zone 1-5 compliant, in accordance with BS 5534.
- Vapour permeable
- High tensile and tear strength
- Clean and easy to handle
- Durable
- UV resistant
- BBA approved – Certificate no. 16/5335
- Integrated tape for sealing laps
- Guidance lines for minimum laps
Universal vapour permeable underlay is a lightweight, high performance breathable membrane for pitched roofs. Supplied in 1m x 50m rolls with integrated tape for sealing laps, the underlay is fully compliant to BS 5534 and suitable for all UK wind zones 1-5. Universal vapour permeable underlay is designed to integrate seamlessly within a full Marley Eternit roof system and provides an additional means of ventilation to meet the requirements of BS 5250*. Dimensions 50m long x 1m wide Minimum overlaps Universal non-breathable underlay is a lightweight, high performance membrane for pitched roofs. Supplied in 1m x 45m rolls with integrated tape for sealing laps, the underlay is fully compliant to BS 5534 and suitable for all UK wind zones 1-5.
Universal vapour permeable underlay is designed to integrate seamlessly within a full Marley Eternit roof system and provides an additional means of ventilation to meet the requirements of BS 5250*.
*Consideration must be given to the type of roof covering used, which will influence the ventilation requirements. For further info, please contact the Marley Eternit technical department.
