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The HAELIX Rondo Valve is a precision-engineered ventilation diffuser designed to deliver balanced, adjustable airflow in HRV/ERV systems. Its sleek, modern design blends seamlessly with interior finishes while providing optimal performance for high-performance buildings.
Constructed from durable, high-quality materials, the Rondo Valve allows easy adjustment to fine-tune airflow, ensuring comfort and efficiency in every room. Installation is quick and straightforward, making it ideal for both new builds and retrofits.

All-round adhesive tape for Interior and Exterior use
- Adheres reliably even if moisture is present: Water-Resistant SOLID adhesive.
- Particularly durable: Adhesion for 100 years, independently tested and confirmed.
- Subsequent work can be carried out with increased flexibility: 6 months of outdoor exposure.
- Subsequent work can be started quickly: Fleece backing can be plastered over directly.
- Easy to work with: Very malleable fleece backing that can be torn by hand.
- Test winner in April 2012 with the German product-testing foundation ‘Stiftung Warentest’.
- Construction in adherence with standards: for airtight sealing in accordance with DIN 4108-7, SIA 180 and RE 2020.
- Excellent values in hazardous substance testing, has been tested according to the ISO 16000 evaluation scheme.
Temperature resistance: Permanent -40 °C to 90 °C ; -40 °F to 194 °F.
For Interior use: Airtight taping of vapour check and airtight membranes and of airtight wood-based panels.
For Exterior use: Windproofing and rainproofing of roofing underlay and breather membranes (e.g. pro clima SOLITEX) and underlay panels. Airtight taping of on-roof and refurbishment vapour check and airtight membranes.
All taped joints, indoor and outdoor, can be implemented between similar components or else with adjacent structural elements with a smooth, non-mineral surface (e.g. pipe penetrations, roof windows).
Roll Size: 60 mm x 30 m (2 3/8" x 98'5")

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Coverrage
600 ml (20.3 oz) sausage - 3/16″ to 1/4″ bead will cover 18.28 m to 27.43 m (60 to 90 linear ft)
Applications
Dependable, durable and flexible air tight adhesive for connections between interior or exterior air barriers and/or uneven substrates. It can be used on the interior or exterior of the building.
Advantages
- Exceptionally high adhesion properties while also remaining elastic
- PHI Class A Certified Airsealing Component
- Long term elasticity combined with high strength and resistance to tension
- No permanent clamping needed in most cases
- Sets in 48 hours to full strength
Substrates
- Bonds all Pro Clima membranes and PP-,PE, PA-, and Aluminum foils to substrates (wood, brick, concrete)
- Works in conjunction with ProClima membranes, TESCON VANA, CONTEGA TAPES etc to connect solid or angled connections between different airtight construction materials
- On the exterior, connects weather resistant barriers, sub roof membranes, under rain screen membranes and wind/watertight construction components
- Good for uneven and porous substrates as it forms to, and penetrates into the substrate
Properties
- Material: Dispersion based on acrylic acid copolymers and ethanol, free of surfactants and halogens
- Application Temperature: 14 °F to 122 °F (-10 °C to 50 °C) [No adhesion to frozen objects]
- Can be stored below freezing thanks to minimized ethanol (alcohol) content
- Low VOC per SCAQMD limits, compliant with LEED, and Living Building Challenge standards
- NBC 2020- 9.36.2.9 Air Barrier Systems Passed air leakage <0.02 L/(s·m²) @75 Pa (ASTM E2357)
- Low VOC per SCAQMD limits
- LEEDv4 passed CDPH v1.2 for Private Office and School Classroom (PO and SC)
- Living Building Challenge RED list free

Reinforced hydrosafe® high-performance vapour check, suitable for all fibrous insulation materials.
Air barrier, smart vapour control, and dense-pack reinforcement all in one. INTELLO Plus is the keystone to long-lasting airtightness and intelligent vapour control in walls and roofs.
- INTELLO PLUS (1.5 m x 50 m)
- Best possible protection against moisture damage to structures and mould because this product is humidity-variable with a variation of a factor of over 100
- Can be combined with all fibrous insulation materials (including blown-in insulation)
- Permanent protection: officially tested and certified performance (ETA-18/1146)
- Protected winter building sites thanks to hydrosafe® behaviour
- Test winner in April 2012 with the German product-testing foundation ‘Stiftung Warentest’
- Easy to work with: dimensionally stable, no splitting or tear propagation
- Excellent values in hazardous substance testing, has been tested according to the ISO 16000 evaluation scheme
- Vapour Variable: Low Class II vapour retarder in winter (<0.13 Perm), protects against condensation and maximum vapour openness in summer (13.2 Perm) to facilitate rapid drying to the interior. Protects the assembly during construction high humidity periods (70% RH) with a DIN 68800-2 compliant, hydrosafe value of 1.6 perms
- Works with a wide range of insulation materials, including Gutex wood fiber and cellulose dense-pack, Havelock wool, stone wool and fiberglass. The semi-translucent material allows dense packed, blown-in insulation to be inspected after installation
- Living Building Challenge Compliant — Red List Free
- Complies with NBC part 9.36.2.9
- Complies with NBC, BC, ON code as per CAN/CGSB 51.33-M89 independent lab testing
- PHI Certified Class A Passive House Component
- Pro Clima Intelligent Airtight system (TESCON VANA tape, ROFLEX gaskets etc) allows for fast, reliable installation
- Certified to ICC-AC528-Humidity dependent Vapor Retarders - ICC ESR 4854
Areas of application
Vapour check (alternate terms: vapour control or retarder) membrane for use on roofs, walls, ceilings and floors on structures that are open or closed to diffusion on the exterior, e.g. flat/steep roofs and green roofs, after appropriate design calculations have been carried out.
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Fleece | Polypropylene | |
Functional film | Polyethylene copolymer | |
Reinforcement | Polypropylene non-woven fabric | |
Property | Regulation | Value |
Colour | White-translucent | |
Surface weight | EN 1849-2 | 110 g/m² ; 0.36 oz/ft² |
Thickness | EN 1849-2 | 0.4 mm ; 16 mils |
Water vapour resistance factor µ | EN 1931 | 35 000 |
sd value | EN 1931 | 14 m |
sd value, humidity-variable | EN ISO 12572 | 0.25 - >25 m |
g value | 70 MN·s/g | |
g value, humidity-variable | EN ISO 12572 | 1.25 - >125 MN·s/g |
Vapour permeance | ASTM E96-A | 0.23 perms |
Vapour permeance, humidity-variable | EN ISO 12572 | < 0.13 - 13 perms |
Hydrosafe value (sd) | DIN 68800-2 | 2 m |
Surface burning characteristics | ASTM E84 | Class A (Flame Spread 0; Smoke development index 35) |
Fire class | EN 13501-1 | E |
Airtightness | ASTM E2178 | ≤ 0.004 cfm/ft² |
Airtightness | EN 12114 | Tested |
Tensile strength MD/CD | EN 13859-1 (A) | 340 N/5 cm / 220 N/5 cm ; 39 lb/in / 25 lb/in |
Elongation MD/CD | EN 13859-1 (A) | 15% / 15% |
Nail tear resistance MD/CD | EN 13859-1 (B) | 200 N / 200 N ; 45 lb / 45 lb |
Durability after artificial ageing | ETA-18/1146 | Passed |
Temperature resistance | Permanent -40 °C to 80 °C ; -40 °F to 176 °F | |
Thermal conductivity | 0.04 W/(m·K) ; 0.3 BTU·in/(h·ft²·°F) | |
CE labelling | ETA-18/1146 | Yes |

ExoAir® 110AT is a 18-mil composite impermeable membrane that is comprised of 12 mils of butyl and 6 mils of HDPP facer.
It can be used as the membrane, detailing accessory, as well as thru-wall flashing of an air barrier system. ExoAir 110AT when
installed properly as a system will provide the requirements of an air barrier: air impermeable, continuity, structural integrity
and durability.


The Solitex Mento 1000 is a 3-layer air tight, vapour-open house wrap that is an extremely strong weather resistive barrier (WRB). It has an actively vapour open, monolithic layer of TEEE film that is extremely waterproof – and outperforms perforated/stretched WRBs.
With both inward and outward drying potential and airtightness, It can be used on the exterior of the building.
- Up to 3 months of outdoor exposure.
- Ensures reliable building components: highly diffusion-open and maximum protection against driving rain.
- Dry building components: pore-free TEEE functional membrane actively transports moisture to the outside.
- Permanent protection thanks to the high resistance to ageing and heat of the TEEE membrane.
- Reliable during the construction phase: suitable as a temporary covering during the construction period.
- Quick and reliable adhesion thanks to the integrated ‘connect’ self-adhesive strips on the long edges of the membrane.
Available Sizes:
- Solitex Mento 1000 - 1.5m x 50m
- Solitex Mento 1000 - 3m x 50m
Property | Regulation | Value |
Colour | Anthracite | |
Surface weight | EN 1849-2 | 115 g/m² ; 0.38 oz/ft² |
Thickness | EN 1849-2 | 0.40 mm ±0.05 mm ; 16 mils |
Water vapour resistance factor µ | EN ISO 12572 | 125 |
sd value | EN ISO 12572 | 0.05 m |
g value | 0.25 MN·s/g | |
Vapour permeance | ASTM E96 | 38 perms |
Surface burning characteristics | ASTM E96 | Class A (Flame Spread 0; Smoke Developed 85) |
Fire class | EN 13501-1 | E |
Fire class/Surface burning characteristics | ASTM E84 | Class A |
Outdoor exposure | 3 months | |
Watertight joints with ‘connect’ adhesive strips or TESCON VANA tape | EN 13859-1 | W1 |
Water column | EN ISO 811 | 10 000 mm ; 32' 10" |
Watertightness, non-aged/aged* | EN 13859-1 | W1 / W1 |
Tensile strength MD/CD | EN 13859-1 (A) | 220 N/5 cm / 170 N/5 cm ; 25 lb/in / 19 lb/in |
Tensile strength MD/CD, aged* | EN 13859-1 (A) | 185 N/5 cm / 160 N/5 cm ; 21 lb/in / 18 lb/in |
Elongation MD/CD | EN 13859-1 (A) | 60% / 70% |
Elongation MD/CD, aged* | EN 13859-1 (A) | 40% / 50% |
Nail tear resistance MD/CD | EN 13859-1 (B) | 130 N / 135 N ; 29 lbf / 30 lbf |
*) Durability after artificial ageing | EN 1297 / EN 1296 | Passed |
Flexibility at low temperature | EN 1109 | -40 °C ; -40 °F |
Temperature resistance | Permanent -40 °C to 100 °C ; -40 °F to 212 °F | |
Thermal conductivity | 0.04 W/(m·K) ; 0.3 BTU·in/(h·ft²·°F) | |
CE labelling | EN 13859-1 | Yes |
NBC part 5.4.1.2.2 | CAN/ULC-S741 | air barrier assembly passed |
NBC part 9.27.3.2 | CAN/CGBS 51.32 | Passed |
DELTA®-REFLEX is a premium reflective air and vapour barrier membrane designed to improve the energy efficiency and durability of wall and ceiling assemblies. Its low-emissivity aluminum surface reflects radiant heat back into the building while providing a continuous air and vapour barrier to help reduce heat loss and control moisture.
Ideal for residential and commercial construction, DELTA®-REFLEX helps create an airtight building envelope while minimizing the risk of condensation within wall cavities. The durable membrane is easy to install and is compatible with the complete DELTA® sealing system for long-lasting performance.
Whether you're building a new home or upgrading an existing structure, DELTA®-REFLEX provides reliable protection against air leakage and moisture while improving overall thermal performance.
Key Features
- Reflective aluminum surface helps improve thermal performance
- Functions as both an air barrier and vapour barrier
- Reduces air leakage for improved energy efficiency
- Helps control condensation within wall assemblies
- Durable, tear-resistant construction
- Suitable for residential and commercial applications
- Compatible with DELTA® tapes and accessories
- Easy to install on walls and ceilings

| ROTHOBLAAS Facade Band UV60 60mm X 25M/Roll (10 rolls/box). Ideal for facade sealing and for overlapping on UV-ray-resistant membranes. |


| FASTENER: Self-Stick Washer with Pin: 2.5in H x 2in W x 2in L. Sold separately - OR by the box upon request. |
The Centrotherm AE 34C Connector Kit is designed to join Air Excellent semi-rigid duct runs quickly and securely. Its airtight construction helps maintain balanced system performance and prevents air leakage, ensuring your HRV/ERV operates at peak efficiency.
Made from durable, high-quality materials, this connector kit is built to withstand years of service in high-performance ventilation systems. Its simple, snap-fit installation saves time on site while delivering a professional, reliable connection.


Waterproof sealing tape, for interior and exterior use
- · Protects structural elements from water ingress: watertight, vapour retarding and blocks rising moisture
- Extremely high adhesion even to slightly damp and cold surfaces
- Very elastic and self-sealing: can adapt flexibly to rough substrates and corners, self seals around nail and screw holes
- Split release paper allows for step by step application to frame, sill and vertical sheathing.
- Best IAQ, no VOC off gassing, per AgBB/ISO 16000
- Excellent protection for building components thanks to strong sealing effect
- Reliable application: extremely high adhesive strength even to slightly damp and cold subsurfaces
- Easy to work with: very elastic - can adapt flexibly to subsurfaces and corners
- Proven resistance to driving rain up to 2400 Pa
- Independently confirmed suitability: tests in accordance with MO-01/1 passed at IFT in Rosenheim (DE)
- Subsequent work can be started quickly: adheres to stable mineral subsurfaces without primers
- Excellent values in hazardous substance testing, has been tested according to the ISO 16000 evaluation scheme.
- For creating sub-sill flashing, for sealing window joints with masonry or concrete structures, for sealing wood-based panels to smooth mineral surfaces, for taping underlay panels made of wood fibre to one another (e.g. in roof valleys and transitions), and for sealing these to adjoining structural elements.
Substrates:
- Bonds to Pro Clima membranes, exterior gypsum, solid wood surfaces, polyethylene, metal, foil, house wraps and wood sheathing
- Bonds to brick, concrete and wood fiber boards, etc. when prepared with TESCON PRIMER RP
Properties:
- Adhesive: Butyl adhesive modified with acrylic PSA - elastic PE carrier film
- Release paper: tear resistant silicone-coated PE-film
- Vapour permeance: <0.03 perms (impermeable)
- Temperature resistance: -40 C to +80 C
- UV/weather Resistance: 6 months of exposure
fvf Sizes available:
- 200mm / 7.87 in.
- 300mm / 11.81 in.
Tape width | Split (approx.) | ||
100 mm (4") | 25 | 75 mm (1" | 3") | ||
150 mm (5 7/8") | 25 | 65 | 60 mm (1" | 2 9/16" | 2 3/8") | ||
200 mm (7 7/8") | 25 | 115 | 60 mm (1" | 4 1/2" | 2 3/8") | ||
300 mm (11 3/4") | 25 | 155 | 120 mm (1" | 6 1/8" | 4 3/4") | ||
| Material | ||
Backing | Elastic PE carrier film | ||
Main component | Butyl rubber modified with acrylate | ||
Release film | Silicone-coated PE film | ||
Property | Regulation | Value | |
Colour | Butyl rubber: grey, film: black | ||
Surface weight | EN 1849-2 | 1.9 kg/m² ; 6.23 oz/ft² | |
Thickness | EN 1849-2 | 1.1 mm ; 43 mils | |
sd value | EN 1931 | > 200 m | |
g value | > 1 000 MN·s/g | ||
Vapour permeance | ASTM E 96 | < 0.03 US perms | |
Outdoor exposure | 6 months | ||
Resistance to driving rain | Innovation Center Iceland | Up to 2400 Pa, around window | |
Resistance to driving rain | ift, MO-01/1:2007-01, Abs. 5 | up to 600 Pa, sub-sill flashing | |
Installation temperature | -10 °C to 35 °C ; 14 °F to 95 °F | ||
Temperature resistance | Permanent -40 °C to 80 °C ; -40 °F to 176 °F | ||
Storage | Cool and dry | ||