Caltech UV (UV Resistant)

Caltech Warm Roof


CaltechUV is a single component, cold-applied, moisture-triggered polyurethane liquid roofing product.  It cures to form a seamless, durable and weather-resistant waterproofing solution. 

This product has an extended life cycle due to the products enhanced UV resistance. CaltechUV is highly adapted to cope well when exposed to sunlight thus avoiding UV Degradation.

Key Features & Applications

cold applied liquid waterproofing system

  • Water-proofing of flat and pitched roof structures, communal walkways, podium decks and terrace roofs
  • For new build construction and refurbishment projects
  • Applicable to existing concrete, roofing felt, brickwork, asbestos cement decks (subject to condition and priming requirements)

Characteristics and Advantages

  • CaltechUV is a single component product that requires no mixing therefroe is easy to use and ready immediately.
  • Fully Cold-applied so requires no heat or flame.
  • Economic – provides a cost efficient life cycle extension of failing roofs.
  • Retains flexibility at low temperatures.
  • Minimal disruption and low maintenance.
  • Can be applied all year round above 2°C.
  • Approved to ETAg 005 (Part 6)

Application Details

  • Quality of substrate must be assessed before application (see product datasheet)
  • When prepearing substrate the surface must be sound, of sufficient strength, clean, dry and free of dirt, oil or grease. In cases of cementitious substrates outgassing must also be taken into consideration.
  • Surface must be dry and within +2 °C min. / +30 °C max.
  • Gently stir the CaltechUV before use.
  • Add CaltechUV Accelerator.
  • Apply CaltechUV using a roller.
  • Do not use CaltechUV for indoor applications.

Quick Tip

What is UV Degradation?

Many natural and synthetic
polymers are attacked by
ultraviolet radiation, and products using these materials may crack or disintegrate if they are not UV-stable. The problem is known as UV degradation, and is a common problem in products exposed to sunlight. Continuous exposure is a more serious problem than intermittent exposure.

White House Works, Bold Road, Sutton, St Helens, Merseyside, WA9 4JG