Alreflex 2L2

Alreflex 2L2 is a versatile insulation that has been used by some of the largest house builders in the UK for more than a decade. Predominately used as cavity wall insulation and cavity rain barrier, it can also be used as a dry lining providing the dual function of enhancing the U-value and reducing the air permeability. As a completely flexible and waterproof product Alreflex 2L2 is also used in difficult detailing work and curved structures, where it is not possible to use rigid conventional insulations.

With a BRE Green Guide A+ rating Alreflex 2L2 has excellent environmental credentials. It has a Global Warming Potential of zero and an Ozone Depletion Potential of Zero. No CFCs, HFCs or HCFCs are used in the production of Alreflex 2L2.

Product Specifications

Roll Size 1.05m x 25m or 50m, 1.2m x 50m & 1.5m x 50m
Thickness  3mm (SRO) or 6mm (FR)
Foil emissivity 0.03
 
Surface spread of flame  Class O
Resistance of (min) 20mm residual cavity  0.71m2∙K/W
Resistance of bubble/foil  0.19m2∙K/W
 
Total Resistance (min) 20mm residual cavity to both faces  1.612∙K/W
Global Warming Potential  Less than 5
Ozone Depletion Potential  Zero 
 
BBA Certified Product

BBA Certified Product

Built in Vapour Barrier

Built in Vapour Barrier

Cavity Rainwater Barrier

Cavity Rainwater Barrier

Cost-effective Solution

Cost-effective Solution

Easy Installation

Easy Installation

Global Warming Potential less than 5

Global Warming Potential less than 5

Improves Air Tightness

Improves Air Tightness

Ozone Depletion Potential Zero

Ozone Depletion Potential Zero

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Main Applicaitons

Cavity Insulation

Alreflex 2L2 can be used in cavity wall construction to achieve a U-value of 0.35W/m2K. This is a low cost solution to provide Approved Document Part L 2006 compliant U-values or provide significant levels of insulation where building regulations are not needed or are not applicable.

Dry Lining

Alreflex 2L2 can be used as a dry lining to improve U-values, reduce air permeability and lower thermal mass in new-build and refurbishment applications.

Alrelfex 2L2 can be used to provide a thin, incredibly cost-effective insulation for existing dwellings. In a standard 225mm solid brick construction the addition of Alreflex 2L2 dry lining will improve the U-value of the structure by 77%. In new build constructions it can be used in addition to a cavity wall insulation to lower U-values or reduce the overall thickness of the construction.

Detailing Work

Alreflex 2L2 is a maximum of just 6mm thick and is extremely flexible, this makes it the ideal solution for preventing cold bridging in difficult detailing areas and in reduced cavity widths. It is regularly used around steel columns, windows and doors, slab edges and wind posts in this type of application to improve Psi values for Part L compliance.