Vented roof

Kalzip® Vented Roof Systems

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Vented roof structures

A roof construction with many advantages

Kalzip vented roof structures are cost-effective roof structures that can be used for both new builds and refurbishment projects. The rear ventilation improves year-round thermal performance. We have a competent and suitable solution for your ventilated roof for all roof structures.

Advantages:

Economical alternative to other roofing materials such as tiles, slate or zinc
Low maintenance and no maintenance costs thanks to durable roof cladding. As per the Kalzip BBA certificate reference 98-3481 Deck Roof System Product sheet 2: Issue 2
Cost-effective overall package thanks to harmonised system components and surfaces
Lightweight Kalzip aluminium sheet even with solar

Being “on request” ensures we provide the correct document version relative to the project timeline – completed, in process or prospective. CONTACT US

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Ventilated roof structure

ON FORMWORK

1. Kalzip profiled sheet, 2. Kalzip E-clip type E5, 3. Ventilation layer, 4. Wooden formwork, e.g. 24 mm, 5. Wooden battens, 6. Underlay membrane, 7. Wooden rafters, 8. Insulation between the rafters, 9. Vapour barrier, 10. Interior cladding, e.g. plasterboard

Ventilated roof structure

WITH INTER-RAfter insulation

1. Kalzip profiled sheet, 2. Kalzip E-clip type E5, 3. Fixed point clip, 4. Pre-covering (diffusion-open), 5. Rear ventilation layer, 6. Perforated sheet metal, 7. Wooden formwork, 8. Multi-layer wood panel, 9. Wooden rafters, 10. Thermal insulation, 11. Vapour barrier, 12. Interior cladding, 13. 2nd rear ventilation layer

KALZIP VARIO LB roof system

FOR THE FLEXIBLE CREATION OF A NEW ROOF SURFACE – OPTIONALLY WITH SOLAR

1. Kalzip profiled sheet, 2. Vario LB base profile, 3. Vario LB support profile, 4. Vario LB thermal cap 145/200, 5. Vario LB pipe purlin 80, 6. Vario LB swivel clip, 7. Fixed point clip, 8. Vario LB fork profile, 9. Vario LB support plate, 10. Vario LB butt profile 80, 11. Vario LB stiffening bracket, 12. Vario LB stiffening profile

KALZIP VARIO LB roof system

COLD ROOF ON VARIO LB PURLIN

1. Kalzip profiled sheet, 2. LB purlin 30, 3. Vario LB twist clip, 4. Timber truss

KALZIP VARIO LB roof system

COLD ROOF ON WOODEN RAFTERS WITH FLOW COATING ON THE BACK

1. Kalzip standing seam profile panel, 2. Composite clip (holder), 3. Wooden purlin, 4. Wooden rafter

Flexible planning and design freedom for new buildings

The advantages of the Vented Roof Structures:

The ventilated air gap/cavity helps keep the roof structure cooler in summer and prevents excessive heat loss in winter, enhancing comfort.
The use of light colours/surfaces of the Kalzip profiles makes these roof structures ideal as so-called “cool roofs”
Ventilation removes moisture from the roof space, preventing condensation, mould, and timber decay, protecting the structure
Have improved heat dissipation compared to non-ventilated roofs. The roof heats up less due to the rear ventilation
Pollutants that accumulate inside the building can be discharged to the outside via the ventilated air gap/cavity
The following documents are available on request for the Kalzip system
- Declaration of Performance (DoPs)
- EPD’s
- BBA Agrément® Certificates.
- Product Safety & Handling Information
- DIBt Approvals

Being “on request” ensures we provide the correct document version relative to the project timeline – completed, in process or prospective. Contact Us

Applications of Vented Roof Structures:

Commercial buildings: Kalzip ventilated roofs are ideal for commercial buildings such as offices, retail outlets and industrial facilities. They can help to reduce energy consumption and extend the service life of the roof. As per the Kalzip BBA certificate reference 98-3481 Single Skin System Product sheet 3: Issue 2
Public buildings: They are also suitable for public buildings such as schools, libraries and government buildings, as they can help to create a pleasant indoor climate and reduce energy costs.
Residential quarters: Ventilated roofs can also be used in residential quarters to improve the indoor climate. They can also help to extend the service life of the roof. As per the Kalzip BBA certificate reference 98-3481 Single Skin System Product sheet 3: Issue 2