LB plus
Product Information
The LB plus Rooflight has thermally separated profiles and offers improved thermal performance for projects with higher requirements for energy efficiency. The modular system is available in any length with spans between 1 and 6 m and can be custom-made. Various glazing options are available for different requirements such as thermal, sound, and sun protection or airtightness.
Product Highlights
- Available in any length, span 1 to 6 m
- Modular design for increased flexibility
- Renovatable with ERUglaz step glass for skylights
- Different glazing options for various requirements
- Thermally broken profile system
- Versions available for carrying high snow loads
- Smoke and heat exhaust system tested according to EN 12101-2 (see data sheet for more details)
- Heating cost savings for highly efficient overall construction
- Intelligent connection technology through frame safety connection made of EPDM
Technical Information
Nominal Size
The LB plus rooflight is available in spans from 1 to 6 m, depending on the glazing variant. Thanks to its modular design, it is available in any length.
Light Transmittance
The LB plus rooflight achieves a light transmission of up to 50%, depending on the chosen glazing variant. Please contact our technical team for more information or refer to the product datasheet.
Thermal Performance (U-Value)
The LB plus rooflight can achieve Ut-values from 1.1 to 1.9 W/m²K, depending on the chosen glazing variant. Please contact our technical team for more information or refer to the product datasheet.
Solar Heat Gain Coefficient (g Value)
The LB plus rooflight achieves g-values in the range of 30% to 52%, depending on the chosen glazing variant. Please contact our technical team for more information or refer to the product datasheet.
Acoustic Performance
The LB plus rooflight can achieve sound insulation values (Rwp) between 21 and 30 dB. Please contact our technical team for more information or refer to the product datasheet.
Certifications & Test Results
- Approved according to General Building Approval (aBG’s) Z-10.19-821 and European Technical Assessment ETA-17/0482
- Fire performance according to EN 13501, B-s1, d0 or E, depending on the chosen glazing variant. Please contact our technical team for more information or refer to the product datasheet.
- Smoke and heat exhaust system tested according to EN 12101-2
Frequently Asked Questions
What material is the LB plus rooflight made from?
The LB plus rooflight consists of an aluminum and thermally broken PVC profile system with various polycarbonate glazing options to meet a variety of requirements, such as protection from heat, noise, and sunlight. A complete list of options can be found in the product data sheet.
Can the LB plus rooflight be combined with roofs made from Kingspan insulated sandwich panels?
The LB plus rooflight can be used on flat roofs with a maximum roof pitch of 25° and is compatible with all roofing systems and Kingspan sandwich panels. The use of the Zargensicherheitsanschluss ZSA is recommended for a safe and standard-compliant connection. Examples of installation in Kingspan insulated panel roofs are available upon request.
Can the LB plus rooflight be combined with safety products?
Yes, the LB plus rooflight can be configured with a glazing option that meets the requirements for a hard roofing according to BROOF (t1). It is also compatible with the Kingspan ESSMANN fall and penetration protections, providing additional safety for people working on the roof.
What is the difference between the LB plus rooflight and the LB basic rooflight?
The main difference between the LB plus rooflight and the LB basic rooflight is that the LB plus skylight is thermally broken, thus offering improved thermal performance and low U-values.
Can the LB plus rooflight also be used for smoke and heat exhaust ventilation and daily ventilation?
Yes. The skylight can be installed with full or ridge flaps. These are tested according to DIN EN 12101-2 depending on the size and are suitable for smoke and heat exhaust ventilation. Contact our technical team to discuss your requirements further.
What sizes are available for the LB plus rooflight?
Due to its modular construction, the LB plus rooflight is available in any length and in widths from 1 m to 6 m (depending on the chosen glazing).
For what types of buildings is the LB plus rooflight typically used?
The LB plus rooflight is well-suited for projects aiming to achieve higher thermal efficiency or those exposed to high humidity and condensation risk, such as bakeries, sports, and production halls.








