INTELLO X connect
Hydrosafe® high-performance vapour check with self-adhesive strips, for external insulation and roof refurbishment
Advantages
- Excellent protection against mould and moisture damage to structures thanks to humidity-variable diffusion resistance
- Easier handling: can be used with external insulation and on refurbishment projects between two layers of mineral wool insulation
- Protects building structures against weathering during the construction phase for roof pitches of 10° (2.1:12) and higher
- Protected winter building sites thanks to hydrosafe® behaviour
- Excellent values in hazardous substance testing, has been tested according to the ISO 16000 evaluation scheme
- Quick and reliable adhesion thanks to the integrated ‘connect’ self-adhesive strips on the long edges of the membrane
Areas of application
When installed directly on top of a hard subsurface underneath exterior insulation, the INTELLO X connect vapour check (alternate terms: vapour control or retarder) membrane can be combined with all fibrous insulation materials (including blown-in insulation materials).
In the case of refurbishment from the outside and installation between two layers of insulation, the choice of insulation materials for the two layers is limited to mineral or rock wool. The thickness of the external mineral wool insulation needs to be calculated on a project-specific basis; please contact Technical Support at pro clima in Germany for assistance.
This membrane can be used on building components that are diffusion-open to the outside or are diffusion-tight, e.g. pitched, flat or green roofs, after appropriate design calculations have been carried out.
When used on the inside of insulation installed between rafters or wall framework in combination with fibrous insulation mats and boards, this membrane may only be installed onto a hard subsurface or else with additional taping of membrane overlaps with TESCON VANA.
Planning and installation instructions
Areas of application
The high-performance INTELLO X connect vapour check (alternate terms: vapour control or retarder) membrane, which can be subjected to outdoor exposure and has a humidity-variable sd value, can be used:
- Directly on top of sheathing, underneath exterior insulation
- For roof refurbishment from the outside with installation between two layers of mineral or rock wool insulation – after appropriate design calculations have been carried out by pro clima technical Support in Germany
- As a membrane that can be walked on, even underneath insulation layers on hard subsurfaces such as sheathing – e.g. on the floor of a cold attic
- On residential buildings or commercial buildings with residential-like use in all rooms such as living rooms, bedrooms, kitchens and bathrooms
- On structures open to diffusion on the exterior and those that are closed to diffusion on the exterior
Use even on structures with demanding construction physics conditions
INTELLO X connect also provides excellent protection against moisture damage to structures compared to other products on the global marketplace – even for locations with very cold climates – for critical structures that are closed to diffusion on the exterior, such as pitched roofs with metal coverings, roofing underlays with asphalt roof membranes, flat roofs and green roofs etc.
Note
Please note that the task of providing moisture protection forms part of the construction design and verification process. For further information in this regard, please contact our Technical Support.
2 months of outdoor exposure
pro clima INTELLO X connect can be subjected to outdoor exposure for up to 2 months to protect the building structure. In the case of roof refurbishment from the outside and installation between two layers of insulation, the outdoor exposure period is reduced to 14 days (7 days for ≤10 °C). Within this period, external roof insulation must be installed with the thickness required to provide moisture protection for the building component. The thickness of the external mineral wool insulation needs to be calculated on a project-specific basis. Please contact Technical Support at pro clima in Germany for assistance. The minimum roof pitch is 10° (2.1:12).
Please note that INTELLO X connect does not provide sealing that is equivalent to an emergency roof. Moisture can enter at staples or other perforations (nails, screws etc.). In addition, covering with tarpaulins is recommended for buildings that people are living in or that are particularly worthy of protection.
Use of fibrous insulation materials
The high degree of protection against moisture damage to structures offered by humidity-variable vapour checks is achieved by using fibrous thermal insulation materials that are open to diffusion, as the moisture must be able to diffuse through to the vapour check for the purpose of drying during the summer climate.
Fibrous thermal insulation materials such as cellulose, flax, hemp, wood fibre and rock or mineral wool are ideal here.
Use of diffusion-open interior cladding
To take full advantage of the potential of humidity-variable vapour checks to provide protection against moisture damage to structures, diffusion-open cladding should be installed internally relative to the vapour check – e.g. gypsum boards or wooden board cladding.
Refurbishment from the outside
Between-rafter and over-rafter insulation both mineral wool.
Refurbishment solution:
1. Roofing underlay membrane e.g. pro clima SOLITEX MENTO 3000
2. Over-rafter insulation, mineral wool
3. INTELLO X / connect / INTELLO X PLUS
4. Insulation between rafters/framework, mineral wool
5. Service cavity, if necessary
6. Inner cladding
In the case of refurbishment from the outside and installation between two layers of insulation, the choice of insulation materials for the two layers is limited to mineral or rock wool. The thickness of the external mineral wool insulation needs to be calculated on a project-specific basis. Please contact Technical Support at pro clima in Germany for assistance.
Increased indoor humidity
INTELLO X connect has been designed in such a way that a reliable vapour-checking effect is ensured even in the case of increased indoor humidity for limited periods, which can occur in new buildings as a result of construction work or during short-term increases in relative humidity in bathrooms or kitchens, for example.
Construction phase: hydrosafe® value (70/1.5 rule)
A vapour check should have a hydrosafe® value of 1.5 m in order to protect structures against dampness even in the case of the increased relative humidity that can be present during construction work.
The hydrosafe® value specifies how well sealed a humidity-variable vapour check still is at an average humidity of 70% (e.g. at 90% indoor air humidity and 50% humidity in the space between the rafters) – these values can be achieved when screed is being installed or walls are being plastered.
The requirement that sd should be > 1.5 m and < 2.5 m comes from DIN 68800-2 and is described in further detail by the 70/1.5 rule. INTELLO X connect fulfils these requirements reliably.
Regardless of the type of vapour check used, moisture due to construction work must always be removed from the building structure quickly by ventilation through open windows so that a normal moisture level can be achieved. Dryers can help to speed up the drying process in wintertime.
Quality assurance
In the case of membrane installation on the exterior, efficient quality assurance can be carried out during the course of construction by means of differential pressure testing with overpressure and artificial fog. As part of this testing, fog is generated inside the building using a fog machine. In this way, the airtightness of detail features can be checked and rectified on the exterior. The membranes must be mechanically secured to a sufficient extent beforehand. For this reason, taped and adhesive joints are to be implemented with particular care.
Detailed construction planning – particularly of joints at the eaves and gable ends and the implementation of these joints on roof refurbishment projects – is particularly important. In Germany, this quality assurance during the course of construction is no substitute for final testing of airtightness in accordance with the German Building Energy Act (GebäudeEnergieGesetz, GEG) or the requirements of the German Reconstruction Loan Corporation (KfW) regarding the determination of the air change rate (n50 value).
Technical support
If you have questions on applications, please contact our Technical Support.
