INTELLO PLUS

Advantages

• Greatest vapor permeability variance available: in dry winter conditions < 0.13 perms (s_d value: 25 m); in summer > 13.2 perms (s_d value: 0.25 m) maximizing inward drying potential
• Durable airtightness layer, part of Pro Clima’s Intelligent Airtight System
• Hydrosafe protection – remains vapor retarding against winter phased construction moisture – 2.2 perms @ 70% RH
• Fleece layer protects smart vapor retarding layer during installation over rough wood
• Works with a wide range of insulation materials, including dense-pack cellulose, woodfiber, sheepswool, hemp batts, mineral wool, fiberglass, and more
• The semi-translucent material allows dense packed blown-in insulation to be inspected after installation
• International Living Future Institute Declare product. Living Building Challenge – DECLARED Red list free
• PHI Certified Class A Passive House Component
• Complies with IBC, IRC and IECC 2021: ICC ESR-4854

Code compliance

Areas of application

INTELLO PLUS provides roof and wall assemblies a previously unachievable degree of protection from moisture damage and mold, even in challenging assemblies and/or climatic conditions such as: unvented assemblies (asphalt shingles roofs, flat roofs, green roofs, valleys covered by ice and water shield, historic masonry walls), mixed humid climates with cold winters and air-conditioning requirements in summer, and extreme cold climates.

Installation steps

 Installation instructions

General conditions

Where possible, INTELLO PLUS should be installed in such a way that adhesion can be carried out using single-sided adhesive tape on the smooth (printed) side of the sheeting. It should be installed taut and without slack either in parallel with or perpendicular to the supporting structure, e.g. the rafters. In the case of horizontal installation (perpendicular to the supporting structure), the separation distance of the supporting structure is limited to a maximum of 3’ (100 cm). After installation, perpendicular battens on the inside at a separation distance of a maximum of 1’ 8″ (50 cm) must be fitted to carry the weight of the insulation material.

If regular tensile loads on adhesive tape bonds are to be expected – for example, due to the weight of the insulation material – when using mat or panel-shaped insulation materials, an additional supporting batten should be fitted over the overlap sealing. When attaching the membranes in the case of mat or panel-shaped insulation materials, a maximum separation distance of 4″ to 6″ (10 to 15 cm) applies for the fastening staples, which must be at least ⅜″ (10 mm) wide by ⁵⁄₁₆″ (8 mm) long. The overlaps between the membrane strips must be approx. 3″ to 4″ (8 to 10 cm).

Airtight seals can only be achieved on vapor control membranes that have been laid without folds or creases. Ventilate regularly to prevent excessive humidity (e.g. during the construction phase). To prevent condensation formation, INTELLO PLUS should be sealed and taped in an airtight manner immediately after the installation of mat or panel-shaped thermal insulation materials.

As a consequence of their humidity-variable properties, humidity-variable vapor retarder membranes are generally subject to swelling and contraction when they absorb or release moisture. This particularly applies in the case of major changes in the ambient humidity (e.g. after wet work has been carried out or after strong drying). For this reason, it is important to provide sufficient ventilation to remove high levels of air humidity, to use secure mechanical fastening by means of staples and support battens, and to provide sufficient slack to accommodate relative motion.

To prevent condensation formation, INTELLO PLUS should be sealed and taped in an airtight manner immediately after the installation of mat or panel-shaped thermal insulation materials. This particularly applies when working in winter.

Additional instructions for blown-in insulation materials
INTELLO PLUS can also be used as a boundary layer for blown-in insulation materials of all types. A reinforcement structure ensures that there is little expansion during the blowing-in process. Installation in parallel with the supporting structure has the advantage that the joint will be on a solid base and is protected by this base.

The separation distance between the staples used to fasten the membrane strips must be a maximum of 2″ to 4″ (5 to 10 cm). Staples should be oriented parallel with construction timber so that membranes do not tear at the staples when insulation material is being blown in. If installation is carried out perpendicular to the supporting structure, a supporting batten should be fitted directly over the membrane strip overlap with its airtight sealing in order to avoid tensile loading on the adhesive bond.

When working in cold outdoor climates, the blown-in insulation material should be inserted immediately after installation of INTELLO PLUS. This will protect the membrane against condensation formation.

 Safety data sheet

 Datasheet

 Installation instructions