Underlayment membranes
Light, medium-weight or heavy?
Solitex Mento – three weight classes for different requirements
All Solitex Mento sub-roof membranes are highly vapour-open and driving-rain resistant – the difference lies in mechanical load capacity, maximum weather exposure duration and area of use. The connect versions additionally feature integrated self-adhesive zones for fast, secure overlap bonding without a separate tape.
Solitex Mento 1000
For ancillary buildings, sheds and outbuildings. An economical sub-roof membrane for simpler requirements. From EUR 2.26/m².
To Mento 1000 → Medium-weight ★Solitex Mento 3000
The standard for residential buildings and timber construction – robust, highly vapour-open, 4 months weather exposure. Best-selling with connect self-adhesive zones. From EUR 2.52/m².
To Mento 3000 → HeavySolitex Mento 5000
For high loads, long weather exposure (6 months) and constructions with elevated mechanical demands. From EUR 3.72/m².
To Mento 5000 →All versions compared
Solitex Mento 1000, 3000 and 5000 – standard or connect?
| Product | Weight | Weather exposure | Self-adhesive zones | Price from |
|---|---|---|---|---|
| Mento 1000 | Light | Short (ancillary buildings) | No | EUR 2.26/m² (75 m²) |
| Mento 1000 connect | Light | Short (ancillary buildings) | Yes | EUR 2.60/m² (75 m²) |
| Mento 3000 ★ | Medium-weight | 4 months | No | EUR 2.52/m² (75 m²) |
| Mento 3000 connect ★★ | Medium-weight | 4 months | Yes | EUR 3.00/m² (75 m²) |
| Mento 5000 | Heavy | 6 months | No | EUR 3.72/m² (75 m²) |
| Mento 5000 connect | Heavy | 6 months | Yes | EUR 4.42/m² (75 m²) |
★ Bestseller #2 | ★★ Bestseller #1 in this category.
Areas of application
Where is a sub-roof membrane installed?
On the sarking board
The sub-roof membrane is laid on full sarking boards, MDF or wood fibre panels – directly beneath the roof tiles or covering, with counter battens above.
Between rafters
As an underlay membrane directly between or beneath the rafters – for between-rafter insulation, without full sarking boards.
Protection from above
Prevents driving rain, wind-blown snow and condensation from the covering reaching the insulation – vapour-open inward for drying.
Our practical recommendation
For most residential buildings: Solitex Mento 3000 connect
Solitex Mento 3000 connect is our best-selling product in this category – and for good reason. The medium-weight version is robust enough for all common residential buildings and timber construction, the 4-month weather exposure gives sufficient buffer on site, and the self-adhesive zones make installation noticeably faster. For simpler applications, Mento 1000 is sufficient; for particularly demanding ones, Mento 5000.
Frequently asked questions
Frequently asked questions about sub-roof membranes
What is the difference between a sub-roof membrane and an underlay membrane?
Both terms are often used interchangeably. Technically, a sub-roof membrane is laid on sarking boards and sits directly beneath the roof covering. An underlay membrane lies without sarking boards directly beneath the battens, between the rafters. Solitex Mento is suitable for both applications.
What is the difference between Mento 1000, 3000 and 5000?
The number indicates the surface weight in g/m². Mento 1000 is light and for ancillary buildings. Mento 3000 is medium-weight and the standard for residential buildings. Mento 5000 is heavy, particularly tear-resistant and has 6 months weather exposure for longer construction periods.
What does the connect version offer over the standard version?
Connect versions have integrated self-adhesive zones along the membrane length. This means longitudinal seams are bonded directly during installation without a separate tape. This saves time and produces more consistent overlaps. Tape is still required for cross seams and connections.
Which roof pitch is Solitex Mento suitable for?
Solitex Mento sub-roof membranes are designed for pitched roofs. The minimum roof pitch depends on the type of roof covering and is specified in the installation guidelines.
How are overlaps and connections sealed?
Overlaps are sealed with suitable adhesive tapes or the self-adhesive zones of the connect versions. Connections to dormers, chimneys and other penetrations require special connection details – we stock matching accessories.
What does 4 months weather exposure mean for Mento 3000?
The installed membrane can be exposed to weathering for up to 4 months without protective roof covering without losing its protective function. This gives sufficient buffer for longer construction periods. Mento 5000 offers 6 months for additional security.
Protect your roof construction permanently
Choose the right Solitex Mento sub-roof membrane now.
Light, medium-weight or heavy – with or without connect self-adhesive zones.