For modular and portable buildings

Holrow’s own G6R roof blanket is a durable PVC membrane for waterproofing the roofs of modular buildings. It can be bonded to the substrate using adhesive, which means a flame-free option for refurbishing dilapidated roofs while preventing disturbance to its occupants. G6R offers an aesthetically pleasing result and can also provide a robust base for paved or green roofs. We also supply compatible adhesive and flashings products.

(G12 offers a more heavyweight alternative.)

  • High durability thanks to UV resistance  
  • Strong but flexible 
  • Made to measure for any module size 
  • Secure seam welding quality 
  • Easy and safe to install and hot-air weld
  • Superb adhesive bonding properties 
  • Accessories such as outlets & caps also available
  • BRE fire-tested to the modular building industry standard roofing specification (ie fully adhered to 12mm plywood/OSB).

Description of the G6R roofing membranes

G6R is a light-grey, flame-retardant PVC sheet which is strengthened with the addition of a polyester mesh on one side. This mesh also offers an excellent face for bonding with adhesives. All blanket seams are manufactured using RF-welded joints. 

Installing G6R roofing blankets

G6R can be installed using quickly and easily using either:

  • Dekbond roofing adhesive 
  • PVC Upstand Contact Adhesive

Connecting building modules

Seal together adjoining modules on-site by overlapping the membranes from one building module to the next and hot-air welding them in place. Another option is to use SEAL-IT adhesive.

Physical characteristics

Construction: Flame-retardant PVC

Reinforcement: Polyester mesh

Colour: Light grey 

Thickness: 0.7mm (to BS EN 1849-2)

Weight: 900g/m2 (to BS EN 1849-2)

Cold bend capacity: ≤ -25°C (to BS EN 495-5)

Dimensional stability: 6h*80°C % ≤ 0.5 (to BS EN 1107-2)

UV ageing: No cracks after 3,024 hours (to prEN 1297 - UV-B)

Resistance μ-value To BS EN 1931 

R value: 4.7-10E-3


Thickness 0.8mm Weight 900g/m2 contact us

Specialists in roof membranes & blankets for modular buildings since 1992

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