• Derbigum Black • Derbigum Mineral• Derbigum AR (root-resistant)

Membrane Options

4321

*System layer variants are also available.

ENVI

RO

NMENTALLY FOCUSSED

Ref: SSDS-RBM001 Issued:01/07/21 +44 (0)1744 648400 technical@alumascroofing.com www.alumascroofing.com

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DERBIGUM

• New Build• Refurbishment• Cold roofs•Warmroofs(allroofinginsulations)•Overlayofexistingwaterproofingsystems• Inverted roofs• Buried membrane applications incl. hard/green roofs•Compatiblewithallconventionalroofingsubstrates

When to Specify

DerbigumHighPerformanceRoofingSystemscomprisesofpremiumrangeofreinforcedAPPpolymermodifiedbituminouswaterproofingmembranes, underlays, insulation boards and air and vapour control layers (AVCL). Derbigum has a proven track record since 1967 and issubjecttothehighestlevelsofcertificationandtesting.Usingavarietyofinstallationmethodsandbuild-upssystemsaredesignedtomeettheindividualrequirementsofeveryprojectforuseacrossallbuildingsectorsinbothrefurbishmentandnew-buildroofingandwaterproofingprojects.

Typical Torch-On Assembly4 Derbigum Mineral*

3 Torch-OnUnderlay

2 PIRInsulation(typeBGT)orClassAfireratedalternative

PUInsulationAdhesive

1 Euroroof Torch-On AVCL

Alumasc Bitumen Primer

BBACertified-Wheninstalledonstablesubstratesandregularly maintained, the system will have a life in excess of 40 years.

Typical Safe2Torch Assembly4 Derbigum Mineral*

3 Self-AdhesiveUnderlay

Eurofoof SA Primer

2 PIRInsulation(typeGTF)orClassAfireratedalternative

PUInsulationAdhesive

1 Self-Adhesive AVCL

Euroroof SA Primer

Durability

4 Derbigum Mineral/Derbigum Black

3 TorchOn/Self-AdhesiveUnderlay

2 PIRInsulationorClassAfireratedalternative

PUInsulationAdhesive

1 Existingwaterproofing

3 Derbigum Mineral/Derbigum Black

2 Torch-On/Self-AdhesiveUnderlay

Primer, type according to substrate

1 Existingwaterproofing

6 Derbigum Mineral/Derbigum Black

5 Torch-On/Self-AdhesiveUnderlay

4 PIR Insulation overlay

PUInsulationAdhesive

3 Vtherm vacuum insulation panel (VIP)

PUInsulationAdhesive

2 3mm Rubber Crumb Mat

PUAdhesive

1 Air & Vapour Control Layer, type according to the substrate

Alumasc Primer, type according to AVCL

4321

321

654321

NB. Air & Vapour Control Layer may be required, subject to condition oftheexistingwaterproofing.

Ref: SSDS-RBM001 Issued:01/07/21 +44 (0)1744 648400 technical@alumascroofing.com www.alumascroofing.com

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Other Common System TypesDERBIGUM

Insulated Overlay of Existing Waterproofing

Cold Overlay of Existing Waterproofing

Warm Roof Incl. Vacuum Insulated Panel

7 Blackdown Specialist Substrate

6 Blackdown Drainage Layer & Filter Sheet

5 Blackdown Moisture Retention Fleece

4 Derbigum AR

3 Torch-On/Self-AdhesiveUnderlay

2 PIRInsulationorClassAfireratedalternative

PUInsulationAdhesive

1 Air & Vapour Control Layer, type according to the substrate

Alumasc Primer, type according to AVCL

Warranties

76

4321

54321

5

5 Surfacefinishesofchoice

4 LO-k Water Flow Reducing Layer (WFRL)

3 XPSInsulationorClassAfireratedalternative

2 Derbigum Black/Derbigum AR (for green roofs)

1 Torch-On/Self-AdhesiveUnderlay

Primer, type according to the substrate

Ref: SSDS-RBM001 Issued:01/07/21 +44 (0)1744 648400 technical@alumascroofing.com www.alumascroofing.com

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DERBIGUMOther Common System Types

Warm Roof with Green Roof

Alumasc offers a comprehensive range of single-source warranty options for up to 35 Years. Installed exclusively by Registered Contractors and underpinned by Alumasc’s extensive project support service, Alumasc warranties cover product, workmanship, and design.

Inverted Roof

Technical Support

86/1593

•BBARoofingMembranesCertificateNo.86/1593•BBARoofingSystemsCertificateNo.18/5563•FireclassificationofBROOF (t4) in accordance with BS EN 13501-5

Approvals

AlumascTechnicalServicescanadviseonallaspectsofproductselection,specificationandintegrationofAlumascsystemsintoany building design.

CERTIFICATE 18/5563