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Description

Torch-on, two layer, APP modified bitumen felt system for flat or pitched roofs.

  • Low cost.
  • Suitable for new build or refurbishment, warm or cold roof constructions. Good heat resistance.
  • Capsheet: Polyester carrier, coated with mix of actactic polypropylene (APP) modified bitumen, plasticisers and fillers.
  • Life expectancy in excess of 20 years.
  • Available with ten year insurance backed guarantee or twelve year manufacturer's guarantee on application, subject to installation and inspection by Bailey. Consult manufacturer.
  • Installation by recommended contractors, if insurance backed guarantee required.

Resistance to traffic:

System accepts limited foot traffic associated with construction or maintenance.

Adhesion/ Fixing:

  • Adhesion or fixing of system elements to one another and to substrates needs to be sufficient to resist wind suction and building movement. Windload calculations can be provided by Bailey, if required.
  • System is applied by melting polythene lower surface and bitumen lower surface by torching and pressure.
  • Falls in excess of 5º: Requirements for mechanical fixing to BS 8217 should be observed.

Fire performance to BS 476:

  • Without protection: EXT.F/AC.
  • With chippings over capsheet: EXT.F/AA.

Specification data
Product Reference

System 12000 Roofing

Layout

As drawing ___

Preparation

Not required

F-604-HP25, AMC high penetration bitumen primer

F-611-TO15,15 mm perlite recovery board

Accommodates uneven substrates; for torch-on membranes.

A-12200, System 12000 2 mm preparation layer secured by ___

For rough or uneven substrates: secure by torching. Close boarded timber decks: secure with 15 mm galvanized clout nails at 150 mm centres.

Vapour barrier

Not required

F-605 Laminal

Mechanical fix or torch-on application.

Insulation -
Type

Not required

E-PIRFTF, Sure-therm polyisocyanurate felt/ tissue faced, thickness ___ mm

E-PIRPEF, Sure-therm polyisocyanurate perlite faced, thickness ___ mm

E-PSBFF, Sure-therm expanded polystyrene felt faced, thickness ___ mm

E-XPSUNF, Sure-therm extruded polystyrene unfaced, thickness ___ mm

For inverted roof applications only.

PIR, Sure-therm polyisocyanurate, tapered to ___ falls

Standard falls 1:80, 1:60, 1:40. Non standard falls available.

EPS, Sure-therm expanded polystyrene, tapered to ___ falls

Standard falls 1:80, 1:60, 1:40. Non standard falls available.

Fixing/ Adhesion

Torching to top surface of Laminal vapour barrier

Bonding with hot bitumen

F-612, Sure-bond expanding foam adhesive

Adhesive fix insulation over very uneven substrates.

F-621, Sure-bond PU adhesive

Adhesive fix insulation.

F-701, Sure-fix insulation tube washer and F-710 fastener

Steel deck.

F-701, Sure-fix insulation tube washer and F-712 fastener

Timber deck.

F-702, Sure-fix insulation tube washer and F-711 fastener

Concrete deck.

F-705, Sure-fix adjustable insulation fastener

For fixing tapered insulation to concrete deck.

Loose laid and ballasted

For inverted roof applications with XPS insulation only.

Venting

Not required

F-609, Polyfor venting layer

Prevents blistering by free movement of trapped vapours.

Underlay -
Type

Not required

A-12200, System 12000 2 mm underlay

Mechanical fix or torch applied. Suitable for full or partial bonding.

Fixing/ Adhesion

Torch applied

F-703 Sure-fix membrane tube washer and F-710 fastener

Warm roof fixings for steel deck.

F-703 Sure-fix membrane tube washer and F-712 fastener

Warm roof fixings for timber deck.

F-704, Sure-fix membrane tube washer and F-711 fastener

Warm roof fixings for concrete deck.

F-706, Sure-fix adjustable membrane fastener

For fixing over tapered insulation to concrete deck.

F-713, Sure-fix preassembled cold roof fastener

Cold roof fixings for timber deck.

F-714, Sure-fix cold roof fastener and F-720 pressure plate

Cold roof fixings for steel/ timber decks.

Capsheet -
Type

A-12350, System 12000 sanded finish

Requires protective coating or chippings by others.

A-12450, System 12000 mineral finish, green

Does not require further protection.

System 12000 mineral finish, colour ___

Colours: black (charcoal), tweed (red/ brown), blue/ grey (violet), white. Special order subject to minimum quantity and lead time. Does not require further protection.

Fixing/ Adhesion

Torch applied

Surface protection

Not required

Bailey AMC Aluminium SHR

Solar heat reflective protection coating.

F-618, Bailey paving support pads, rubber

10 mm high x 120 mm diameter. Adjustable supports available.

F-619, Bailey polyethylene geotextile membrane

For inverted roof applications to be laid over XPS insulation.

Accessories

None

F-100-A Sure-line preformed drip edge, face ___ mm

Face: 70, 90 mm.

F-150-A Sure-line preformed watercheck edge

Face: 90 mm.

F-200-A Sure-line preformed upstand flashing

Special order. 200 x 200 mm.

F-250-A Sure-line preformed wall cover flashing

Special order. Face: 85 mm.

F-275, Bailey GRP edge trim

For watercheck or parapet edge trims. Colours: black, white or grey. Size: 40, 65, 100 or 150 mm face. Length: 3 m.

F-602 Sure-fix GRP termination bar

Secures and terminates membrane edge to vertical surfaces, as alternative to Sure-line or lead flashing. Use with F-603 foam tape, F-730 or F-740 fixings and F-616 mastic sealant.

F-603 Bailey expanding foam tape

Accommodates substrate movement at termination bar.

F-610, Bailey angle fillets

For upstands and abutments.

F-616, Bailey silicone mastic, colour ___

Colours: grey, translucent. Secondary seal to joint at termination bar.

Code 4 lead cover flashing, by others

Supply by others. Chased into masonry joints and dressed over vertical edge of membrane.

F-716, Sure-fix flashing rivet

Masonry substrate.

F-714, Sure-fix flashing fastener

Steel or timber substrate.

F-730, Sure-fix termination bar fastener

Timber substrate.

F-740, Sure-fix termination bar fastener

Masonry substrate.

Other requirements

None

F-617-02, lightning conductor clips

To suit 25 x 3 mm bare tape. Install at 1m centres. Special order.

F-617-04, lightning conductor clips

To suit 25 x 3 mm PVC coated tape. Install at 1 m centres. Special order.

Bailey Sure-dome polycarbonate rooflights

Available in a variety of shapes, sizes and glazing options

Bailey Sure-vault barrel vault rooflights

Purpose made item to special order.

Product Options

Layout:

Indicate outlets and penetrations. Indicate fixing layout for high rise or exposed buildings. Windload calculations and fixing layout proposal can be provided by Bailey. Indicate maintenance walkways. Indicate route of lightning conductor, if any.

Vapour barrier:

- F-605, Laminal:

  • SBS bitumen based, with aluminium core.
  • Suitable for torching both sides for bonding to substrate and bedding of insulation boards.
  • Suitable for mechanical fixing with laps hot air welded and insulation mechanically fixed or adhesive fixed to sanded top surface.
  • Suitable for high performance felt or single ply systems.

Insulation:

- Polyisocyanurate (PIR):

  • E-PIRFTF, polyisocyanurate felt/ tissue faced: (CFC and HCFC-free, zero ODP). For built up/ torch on felt roofs, fully or partially bonded or asphalt. Suited to most applications, including refurbishment. Compatible with most other building materials.
  • E-PIRPEF, polyisocyanurate perlite faced: (CFC and HCFC-free, zero ODP). Fire resistant. For torch on felt roofs, fully bonded. Suited to most applications, including refurbishment. Compatible with most other building materials.

- Expanded polystyrene (EPS):

E-EPSBFF, expanded polystyrene felt faced: (CFC and HCFC-free, zero ODP/GWP). For built up/ torch on felt roofs, fully or partially bonded. 100% recyclable. Requires greater thicknesses for equivalent U-value compared to PIR.

- Extruded polystyrene (XPS):

E-XPSUNF, Bailey Sure-therm extruded polystyrene unfaced: For inverted roof applications only. This type of insulation has a high compressive strength and high moisture resistance, making it suitable for use on roofs with extensive trafficking, heavy loads/ surface finishes and inverted roof applications.

- Tapered Insulation (all types):

  • EPS, expanded polystyrene, tapered to falls: Use where substrate is flat or ponded.
  • PIR, polyisocyanurate, tapered to falls: Use where substrate is flat or ponded.

- Insulation Fixings/ Adhesion:

  • F-710, F-711, F-712, Bailey Sure-fix fasteners with F-701 or F-702 Sure-fix tube washers. Not required where top surface of Laminal vapour barrier is to be torched and boards bedded in or adhered.
  • F-705, Sure-fix adjustable insulation fasteners for fixing tapered insulation to concrete decks. Not required where top surface of Laminal vapour barrier is to be torched and boards bedded in or mechanically fixed.
  • F-612, Sure-bond expanding foam adhesive for bonding insulation to very rough or uneven substrates. For most applications F-621 is suitable. Not required where top surface of Laminal vapour barrier is to be torched and insulation boards are bedded in or mechanically fixed.
  • F-621, Sure-bond PU adhesive for insulation board. Not required where top surface of Laminal vapour barrier is to be torched and boards bedded in or are mechanically fixed. Applied in 15mm strips, minimum 4 per metre. Application (minimum): 100-300 g/ m², increased at perimeter and corners.

Underlay:

– System 12000 underlay:

  • Glass fibre carrier, coated both sides with modified bitumen. Sacrificial polythene film both sides.
  • Thickness: 2 mm.
  • Roll width x length: 1 x 16 m.

Capsheet:

– System 12000 Sanded capsheet:

  • Sand finish. Polyester carrier. Sacrificial polythene film backing.
  • Roll width x length: 1 x 8 m.
  • Weight: 3.5 kg/ m².
  • Suitable as capsheet in Bailey System 12000 multilayer system.
  • Suitable as capsheet in multilayer system based on traditional bitumen felts (not covered by guarantee).
  • Suitable as single layer overlay for repair of existing felted roofs (not covered by guarantee).

– System 12000 Mineral capsheet.

  • Green mineral chipping finish. Polyester carrier. Sacrificial polythene film backing.
  • Roll width x length: 1 x 8 m.
  • Weight: 4.5 kg/ m².
  • Suitable as capsheet in Bailey System 12000 multilayer system.
  • Suitable as capsheet in multilayer system based on traditional bitumen felts (not covered by guarantee) .
  • Suitable as single layer overlay for repair of existing felted roofs (not covered by guarantee).

Accessories:

- Edges:

  • Upstand flashings: Use underlay and mineral capsheet. Minimum 150 mm high with lead cover flashing or termination bar and expanding tape. Minimum 200 mm overlap to roof covering, fully torched to upstand and field sheet.
  • Sure-line: Rapid installation preformed trims for vulnerable roof edges, including draining edges, upstands and waterhcecks/ parapets. Galvanized steel angle with factory applied mineral felt membrane. 2 m lengths.
  • GRP edge trim: Glass reinforced plastic edge trim for waterchecks and parapets. Available in black, white or grey. Size: 40, 65, 100 or 150 mm. Length: 3 m. Internal and external preformed corners available.

- Outlets and vents:

For compatible rainwater outlets and roof vents, see Bailey Flow-therm or Sure-flow Outlets and Vents With Felt Flanges.

- Rooflights:

  • Bailey Sure-dome rooflights - available square, rectangular and circular in a variety of sizes with domed, pyramid or trapezoidal, single/ double/ triple skin polycarbonate glazing. Glazing available with clear, opal diffused or bronze (anti-glare) finish. Rooflights also available as access/ escape hatches, with manual or automatic opening and manual or powered ventilation. Rooflights are mounted on curbs made from PVCu, GRP or aluminium with straight (vertical) or splayed (angled) sides. Security curb option also available.
  • Bailey Sure-vault barrel vault rooflights - purpose made product for individual projects - contact Bailey for advice and options.

Systems:

– System 12000 for application to plywood deck (cold roof):

  • Plywood deck with taped joints.
  • Bailey AMC bitumen primer.
  • Bailey System 12000 underlay, fully bonded by torching.
  • Bailey System 12000 capsheet, fully bonded by torching.

– System 12000 for application to concrete deck (warm roof):

  • Bailey AMC bitumen primer.
  • Bailey Laminal vapour barrier, fully bonded by torching.
  • Bailey Sure-therm PIR Insulation board.
  • Bailey Polyfor venting layer.
  • Bailey System 12000 underlay, bonded by torching.
  • Bailey System 12000 sanded capsheet, fully bonded by torching.
  • Paving slabs by others on Bailey paving support pads.

– System 12000 for application to profiled metal deck (warm roof):

  • Bailey AMC bitumen primer, applied to crowns of profiled deck.
  • Bailey Laminal vapour barrier, fully bonded by torching.
  • Bailey Sure-therm PIR insulation board.
  • Bailey Polyfor venting layer.
  • Bailey System 12000 underlay, bonded by torching.
  • Bailey System 12000 capsheet, fully bonded by torching.

Third party certifications
  • CE Mark: EN 13707 - EN 13969. Certificate No: 1370 - CPD - 0047 : Certificate of factory production control.
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