Roof Refurbishment Systems by Kalzip®

Roof refurbishment systems

for sustainable and long-lasting refurbishment of existing roofs


Kalzip roof refurbishment solutions are designed to enhance the existing building envelope, offering long-term protection. These systems meet thermal insulation standards and provide notable sound insulation. Their lightweight nature makes them suitable for large spans and renovating aging roofs.

The advantages of roof refurbishment with Kalzip:

  • Highest corrosion resistance due to seawater-resistant aluminium base material
  • Durable and functional, with minimal maintenance
  • Flexible design options to implement new roof shapes
  • Efficient assembly process, typically only 3 people need to work on the roof
  • Minimal disruption to existing property during refurbishment
  • Rigid roofing

Roof structure VARIO LB ROOF REFURBISHMENT SYSTEM


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Kalzip profiled sheet

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Vario LB Base channel 200

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Vario LB vertical column

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Vario LB thermal barrier pad 145/200

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Vario LB round purlin 80

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Vario LB rotable clip

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Fixed point clip

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Vario LB support profile

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Vario LB roof sheet support

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Vario LB purlin connector 80

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Vario LB support bracket

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Vario LB bracing profile

KALZIP Roof refurbishment with VARIO LB

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

Roof Constructen: 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

Kalzip roof refurbishment for cold roofs

For the refurbishment of corrugated asbestos roofs

Roof construction: 1. Kalzip Profiled Sheets, 2. LB Purlin 30, 3. Vario LB Rotable clip, 4. Steel or timber beams

Roof structure for cold roofs


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Kalzip profile boards

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LB Purlin

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Vario LB rotable clip

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Steel or wooden beams

Roof structure VARIO LB PURLIN SHOE


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Kalzip profile boards

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Vario LB rotable clip

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Thermal insulation

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Vario LB Round purlin 80

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Vario LB Purlin shoe

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Vapour control layer

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Concrete

Kalzip ROOF REFURBISHMENT with Vario LB purlin shoe

FOR the refurbishment of concrete

Roof Construction: 1. Kalzip Profiled Sheets, 2. Vario LB Rotable clip, 3. Thermal insulation, 4. Vario LB Round purlin 80, 5. Vario LB Purlin shoe, 6. Thermal insulation, 7. Old substrate – concrete

Kalzip ROOF REFURBISHMENT ON DUOPLUS ROTARY CLIP RAILS

FOR COMPOSITE ROOF CONSTRUCTIONS

Roof Construction: 1. Kalzip Profiled sheets, 2. DuoPlus rotable clip rail E with E-clip, 3. Compressible insulating felt, 4. Solid insulation as a wedge to create a support surface

Roof structure DUOPLUS ROTABLE CLIP RAIL


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Kalzip profile boards

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DuoPlus Rotable clip rail E with E-clip

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Compressible insulating felt

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Stepping-resistant insulation as a wedge to create a support surface

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Steel Composite element

Sustainable roof refurbishment
Economical – long-lasting – safe

The advantages of roof refurbishment with Kalzip:

  • Manufactured from aluminium alloy with certified resistance to corrosion and weather-related exposure
  • Offers a high strength-to-weight ratio, reducing structural load without compromising stability
  • Demonstrates resistance to material ageing and maintains structural integrity over time
  • Designed for efficient assembly which can reduce on-site time and labour requirements, depending on project conditions (installation guidance available)
  • The system can be adapted to a variety of floor plan shapes and dimensions (see technical design manual for details)
  • Compatible with both warm and cold roof constructions, as defined by the construction details
  • Classified as non-combustible and tested for resistance to corrosion and moisture (certificates available on request)

Roof refurbishment applications:

  • Flat roofs: Kalzip roof renovation systems can be used to renovate old and damaged flat roofs.
  • Shed roofs: Kalzip roof refurbishment systems are ideal for use on old shed roofs where the roof covering has become a problem area over the years.
  • Composite roofs: In older roofs with steel sandwich elements, the effects of weathering and ageing often lead to the ingress of rainwater through leaking transverse and longitudinal joints. Kalzip has sustainable and innovative solutions for cases like these.
  • Asbestos roof coverings: Kalzip can offer sustainable and cost-effective refurbishment solutions, particularly for roofs covered with corrugated asbestos sheets.


Example projects OF ROOF REFURBISHMENTS

Be inspired by a selection of our references