RCM Densglass can be used as an external sheathing board on structures where a fire rating is required including those greater than 18m in height, where a structure is over 18m in height RCM Y-wall should be used from ground level all the way up the structure.
Densglass
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BS EN 13501-1 Class A1 Non-Combustible
Consult RCM technical services of specific fire resistance to BS EN 1364-1:2015 or BS EN 1365-1:2012 -
Thanks to its ability to protect the building envelope against incidental moisture damage during and after construction, DensGlass Sheathing is a preferred substrate under a wide variety of facades, such as:
- Brick
- Stone
- Rainscreen Cladding
Standard Board Sizes
1200 x 2400 x 12.7mm (Longer lengths available to order, subject to minimum quantity)
Key Applications
Sheathing board to
- Rainscreen cladding
- Masonry façades
- Timber cladding
Key Features
- A1 non-combustible
- No1 Specified Gypsum sheathing board in the US
- 12 months exposure (when suitably sealed)
- Lightweight, Scribe & snap, No breather membrane required
- CE marked
- Over 30 years in the market
- BS EN 15283-1:2008 + A1:2009
Workability
This is a scribe and snap board. It may be cut using the score and snap method, no power tools are required. It can be drilled and nailed using conventional hand tools, offering many of the properties of timber. Screws to be installed flush to the board surface.
Suitable for the Following Construction Types
Lightweight Steel Frame
Timber Frame
Modular / Offsite
Concrete Frame
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Contact UsTechnical Specifications
Nominal Density (Oven Dry)
750 kg/m3
Thermal Conductivity
0.21 W/mK
Moisture Resistance
To EN 15283-1
Reaction to Fire
BS EN 13501-1 Class A1 Non Combustible
Biological Resistance
Level 10 ASTM D3273
Surface Condition
Fleeced - Matt
Durability (Life Expectancy - Minimum)
Equal to that of the building installed to
Standard Board Sizes
1200 x 2400 mm
Nominal Mass of Product (kg/m2)
9.5
Dimensional Tolerance
NPD
Product Testing and Certification
Fire Reaction Tests
BS EN 13501-1:2007 + A1:2009 Class A1 Non-Combustible
Consult RCM technical services of specific fire resistance to BS EN 1364-1:2015 or BS EN 1365-1:2012
Physical Properties
EN 15283
Recommended Fixing
Steel Frame
RCM FIX018 - 4.2 x 32 Tek screw
Timber Frame
RCM FIX005 - 4.2 x 42 Tek screw
DensGlass Brochure
Download the DensGlass BrochureFAQ’s
DensGlass should be fitted with the label to the outside.
DensGlass has a rating of A1 to EN13501-1. This is a reaction to fire classification and should not be confused with fire resistance.
No, DensGlass is not meant to be used as a permanently exposed external board. However, during construction it can be left exposed for up to twelve months with all joints treated with either RCM Tape or FR PRO Sealant. However, if the joints are taped as soon as the boards are fitted they can be left exposed during the construction phase for up to 3 months, for up to 12 months temporary exposure we highly recommend using the RCM Joint Seal Kit.
No, DensGlass is not meant to be used as a tile backer board.
No, DensGlass is not meant to be used as a render carrier board.
- Minimum edge distance is 13 – 15mm
- Maximum fixing centre is 600 mm x 300 mm
- 27 No. fixings per 2400 mm x 1200 mm sheet when fixed in a vertical orientation.
- 25 No. fixings per 2400 mm x 1200 mm sheet when fixed in a horizontal orientation.
- For fixing into SFS framing RCM FIX018 4.2mm x 32mm self drilling fixing with 1000 hr anti-corrosion treatment.
- For fixing into timber framing RCM FIX005 4.2mm x 42mm self drilling fixing with 1000 hr anti-corrosion treatment.
Construction utility knife suitable for cutting gypsum based boards.
RECOMMENDED COMPONENTS AND ACCESSORIES
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Insulation products for walls, roofs and floors We supply three key types for both EWI and Rainscreen Cladding Systems
Densglass Video Guides
Densglass Key Features
Densglass Case Study