Kalzip® Vented Roof Systems

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.

The 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
  • 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

Roof structure VENTED ROOF ON TIMBER


1
2
3
4
5
6
7
8
9
10
1

Kalzip profiled sheet

2

Kalzip E-Clip, Typ E5

3

Vent level

4

Plywood deck or similar ie 19mm

5

Timber battens

6

Undercarriage track

7

Timber rafters

8

Insulation

9

Vapour control layer

10

Interior panelling with e.g. plasterboard

Vented roof structure

on TIMBER

1. Kalzip profiled sheet, 2. Kalzip clip type E5, 3. Ventilation layer, 4. Plywood deck or similar ie 19mm, 5. Timber battens, 6. Underlay membrane, 7. Timber rafters, 8. Insulation between the rafters, 9. Vapour control layer, 10. Interior panelling with e.g. plasterboard

Vented roof structure

with CEILING insulation between rafters

1. Kalzip aluminium profiled sheet, 2. Kalzip clip type E5, 3. Fixed point clip, 4. Breather paper [permeable membrane], 5. Ventilated layer, 6. Perforated sheet, 7. Plywood deck or similar, 8. Soffit by others, 9. Timber rafters, 10. Thermal insulation, 11. Vapour control layer, 12. Inner lining, 13. 2nd vent level

Roof structure WITH CEILING INSULATION BETWEEN RAFTERS


1
2
3
4
5
6
7
8
9
10
11
12
13
1

Kalzip aluminium profiled sheet

2

Kalzip E-clip type E5

3

Fixed point clip

4

Breather paper [permeable membrane]

5

Pre-covering (vapour permeable)

6

Perforated sheet

7

Plywood deck or similar

8

Soffit by others

9

Timber rafters

10

Thermal insulation

11

Vapour control layer

12

Inner lining

13

2. Vent level

roof structure VARIO LB ROOF SYSTEM


1
2
3
4
5
6
7
8
9
10
11
12
1

Kalzip profiled sheet

2

Vario LB Base channel 200

3

Vario LB vertical column

4

Vario LB thermal barrier pad 145/200

5

Vario LB round purlin 80

6

Vario LB rotable clip

7

Fixed point clip

8

Vario LB support profile

9

Vario LB roof sheet support

10

Vario LB purlin connector 80

11

Vario LB support bracket

12

Vario LB bracing profile

KALZIP VARIO LB ROOF SYSTEM

for a flexible construction of a new roof surface – optionally with solar

Roof Construction: 1. Kalzip profiled sheet, 2. Vario LB Base channel 200, 3. Vario LB Vertical column, 4. Vario LB Thermal barrier pad 145/200, 5. Vario LB Round purlin 80, 6. Vario LB Rotable clip, 7. Fixed point clip, 8. Vario LB Support profile, 9. Vario LB Roof sheet suppor, 10. Vario LB Joint profile, 11. Vario LB Support bracket, 12. Vario LB Bracing profile

Timber roof structure

Cold roof on Vario LB purlin

Roof Construction: 1. Kalzip aluminium profiled sheet, 2. LB Purlin 30, 3. Vario LB Rotable clip, 4. Timber rafters

Roof Structure: Cold Roof on Vario LB purlin


1
2
3
4
1

Kalzip aluminium profiled sheet

2

Kalzip LB Rotable clip

3

Kalzip LB Purlin 30

4

Timber rafters

Roof Structure: Cold Roof on Timber rafters/purlins


1
2
3
4
1

Kalzip profiled sheet

2

Composite clip

3

Timber purlin

4

Timber rafters

Roof Structure: Cold Roof on Timber rafters/purlins

Cold roof on timber purlins with with optional fleece layer on the underside

Roof Construction: 1. Kalzip aluminium profiled sheet, 2. Kalzip E type clip, 3. Timber purlin, 4. Timber rafters

Flexible planning and design freedom for new buildings

The advantages of a vented roof:

  • 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:

  • 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


Profile widths and profile shapes Product downloads Accessories for roof structures

Example projects FOR vented roof systems

Be inspired by a selection of our references

About us

Products

Downloads

Contact