DensDeck® Prime Roof Board - Glass Mat Faced Gypsum Roof Board
Verified by manufacturer today
6.4 mm Thick
6.4 mm Thick
Certificate of constancy of performance
Certificate type
Certificate of Compliance
Certificate type
Non-combustible, A1 classified, glass mat faced with an enhanced gypsum core for use as a substrate board, cover board and recovery board.
Application
Glass mat faced gypsum roof board used in resilient flat roof assemblies in both new build and refurbishment projects. DensDeck® Prime Roof Board can contribute to the resilience of a flat roof in several ways:
- As a cover board installed between the insulation and the waterproofing, it can help to:
- Protect the insulation.
- Reduce the stress on the waterproofing.
- Add rigidity to the entire roof assembly.
- As a substrate board installed under the insulation layer, it:
- Provides a uniform substrate for the vapour control layer.
- Provides a safer working platform during construction.
- Can be used in vertical application on parapets (minimum thickness 12.7 mm).
- As a recovery board installed over an existing flat roof, it can:
- Provide a uniform substrate for new insulation and/or waterproofing layers.
Description
CE Marked to EN15283-1:2008+A1:2009. Reaction to Fire: A1 to EN13501-1. Glass mat faced gypsum board with enhanced core technology. For use as cover board, substrate board - including parapet, recovery board.
Features and benefits:
- Added fire resistance layer.
- Improved resilience of the insulation layer to foot traffic in construction or during maintenance cycles.
- Additional support for the waterproofing layer; enhancing resistance to punctures and hail damage.
- With a relatively low weight the board is easily manoeuvred.
- The board can be cut with standard drylining tools using ‘score and snap' and does not require gapping.
- DensDeck® Prime Roof Board does not generally need a primer in bonded or bituminous build ups.
- When used as a component in a suitable assembly, can help improve airborne sound reduction.
General information
Color | Grey |
Finish | Other Guidance for specification option: Glass mat. |
Material | Gypsum Fiber-glass |
Shape | Rectangle |
Length | 2438 mm |
Width | 1219 mm |
Height | 6.4 mm 12.7 mm 15.9 mm Manufacturer guidanceThickness. |
Warranty description | Ten year |
Uniclass | |
CAWS | K11/890 Board K11/60 Board |
SKU Code | 20000057 |
Specification data - Fibre-reinforced gypsum boards
Classification data | |
Standard | To BS EN 15283-1:2008+A1:2009; mat fibre-reinforced. |
Board type | Type GM-H1 (reduced water absorption rate) and Type GM-H2 (reduced surface water absorption rate). |
Reinforcement | Glass fibre-reinforced. |
Third-party product certification | FM Approved – FM Class 1. Guidance for specification option: Roof assembly shall be FM Approved – Class 1 (FM 4450) and listed in the FM Approval Guide for the specified deck type and wind uplift rating. |
Fire rating | Reaction to fire to EN 13501-1, A1. Fire classification to ASTM E136, non-combustible. |
Thickness | 6.4 mm. Guidance for specification option: ± 1.6 mm. |
Edges | Square. |
Colour and finish | Grey; glass mat faced. |
Width | 1219 mm. Guidance for specification option: ± 3 mm. |
Length | 2438 mm. Guidance for specification option: ± 6.4 mm. |
Variation | Linear variation with change in temperature to GA-235-203, 15.3 x 10^-6 mm/mm/°C. Linear variation with change in moisture to GA-235-2023, 11.7 x 10^-6 mm/mm/%RH. |
Water absorption | Water absorption to EN 15283-1, H1. Surface water absorption to ASTM C1177.17, 1 g. |
CompressiveStrength | To ASTM C473.19, 6205 kPa. |
Technical characteristics, other | Flute spanability to ASTM E661.22, 67 mm. Permeance to ASTM E96.16, >1710 ng/Pa.S.m² Mold resistance to ASTM D3273.R2005, 10. |
Flexural strength | Flexural breaking load to EN 15283-1, ≥435 N (longitudinal); ≥398 N (transverse). |
ThermalConductivity | To EN 12664, 0.12 W/m.K. |
BendRadius | 1219 mm. |
Water vapour permeability | To ISO 12572, 14.6 µ. |
Unit weight | 17.6 kg per board. |
Area weight | 5.9 kg/m². |
Sustainability data
Contains Red List materials | No |
Country of material origin | United States |
Country of product manufacture | United States |
Manufacturing plant location | |
Material | Gypsum Fiber-glass |
Expected Life | Lifetime |
Product certifications
Certification type
Certificate of constancy of performance
DensDeck Prime Roof Board Declaration of Performance
Certificate of Compliance
FM Certificate of Compliance
Literature
Literature type
DensDeck® Prime Roof Board - Product Data Sheet
DensDeck® Prime Roof Board - Technical Data Sheet
Case studies
Roofing in Record-Breaking Rain: Data Center Defies the Skies
Soccer Stadium’s Star Forward: DensDeck® Prime Roof Board
Lionsgate Studios