Bauder Bakor Hot Melt Inverted Roof System - Hot Applied

As 'Horizontal work'.

Bakor790-11 Hot Melt rubberised bitumen.

Guidance for specification option:

• Two 3 mm coats.
• Bakor 790-11 is poured hot onto the deck and spread by a rubber bladed squeegee in two layers at an average thickness of 3 mm nominal for each layer, sandwiching spun bond Bauder Polyester Reinforcement Sheet, to form a monolithic membrane with nominal 6 mm thickness. Application in two layers increases the membranes crack bridging performance, and it can cope with a wider variety of substrate conditions.
• The hot semi liquid form of the Bakor 790-11 enables it to infill and cover every crack and deviation in the deck to form a very strong 100% bond with the deck. This eliminates the possibility of water being able to track beneath the membrane in the event of mechanical damage. It bonds to sound concrete, brickwork or steel and readily conforms to any surface irregularities, protrusions, corners etc. Bakor 790-11 contains no solvents. There is therefore no curing period; the system is ready immediately to accept whatever surfacing has been specified.
• It has excellent low-temperature flexibility and bonding characteristics and can be applied in temperatures down to -18°C on to a clean, dry, frost-free surface.

Bauder Neoprene Reinforcing Sheet.

Guidance for specification option:

• Bauder Neoprene Reinforcing Sheet is used as a reinforcement within the Bauder Bakor 790-11 monolithic membrane system. Bauder Neoprene Reinforcing Sheet bedded between the two layers of hot applied Bakor 790-11 membrane is used to provide extra reinforcement at differing materials i.e. metal outlet flanges and concrete, expansion joints, etc. The neoprene's flexibility and elongation characteristics greatly strengthen the system at these vulnerable points.
• It is installed 75 mm on horizontal and 75 mm vertically between the first and second 3 mm layers (minimum) of Bakor 790-11.

It is also used to bridge cracks above 3 mm in concrete decks and to reinforce and waterproof movement joints.

• Material: Uncured neoprene.
• Width: 150 mm, 450 mm, 600 mm, 900 mm.
• Length: 30.48 m.
• Weight: 11.36 kg/m², 27.73 kg/m², 29.55 kg/m², 60 kg/m².

Bauder Polyester Reinforcement Sheet.

Guidance for specification option:

• Bauder Polyester Reinforcement Sheet is an unsaturated, spun bonded polyester mat for use within Bakor Hot Melt waterproofing systems.
• Bauder Polyester Reinforcement Sheet is lightly brushed into the first 3 mm layer (minimum) of Bakor 790-11 Hot Melt Waterproofing to ensure complete embedment prior to the second 3mm layer (minimum) of Bakor 790-11 Hot Melt Waterproofing.
• Overlaps should be at least 75 mm.

Bauder Polyester Reinforcement Sheet should be encapsulated with 790-11 at the end of the working day.

• Width: 1.016 m.
• Length: 182.88 m.
• Thickness: 0.2 mm.
• Weight: 9.5 kg/roll.

Bauder JFRI PREMIUM+ Inverted Insulation.

Guidance for specification option:

Insert required thickness, 85–240 mm in 5 mm increments.

Designed specifically for inverted roof applications.

• Type: High-performance, rigid expanded polystyrene (EPS) insulation boards.
• Facing: Unfaced.
• Colour: Grey.
• Nominal weight: 30 kg/m³.
• Standard board size: 1215 x 1215 mm (including 15 mm rebate).
• Thermal conductivity: Declared 0.031 W/m·K; design 0.031 W/m·K (may vary, dependent on thickness specified).
• Design load compressive strength: 0.20 N/mm² with 10% nominal compression.
• Ozone depletion potential (ODP): Zero.
• Global warming potential (GWP): <5 kg CO₂ Eq./kg.
• Recyclability: 100%.

Consult manufacturer's literature for further details.

Bauder JFRI PREMIUM (300) Inverted Insulation.

Guidance for specification option:

Insert required thickness, 90–240 mm in 5 mm increments.

Designed specifically for inverted roof applications.

• Type: High-performance, rigid expanded polystyrene (EPS) insulation boards.
• Facing: Unfaced.
• Colour: White.
• Weight: 40 kg/m³.
• Standard board size: 1215 x 1215 mm (including 15 mm rebate).
• Thermal conductivity: Declared 0.033 W/m·K; design 0.033–0.035 W/m·K (may vary, dependent on thickness specified and application).
• Design load compressive strength: 0.30 N/mm² with 10% nominal compression.
• Ozone depletion potential (ODP): Zero.
• Global warming potential (GWP): <5 kg CO₂ Eq./kg.
• Recyclability: 100%.

Consult manufacturer's literature for further details.

Bauder XPS (300) Inverted Insulation Flatboard.

Guidance for specification option:

Insert required thickness.

• Type: High performance rigid extruded polystyrene insulation boards.
• Facing: Smooth self-finished.
• Density: 30 kg/m³.
• Standard board size: 1250 x 600 mm.
• Board thickness: 30 mm, 40 mm, 50 mm, 60 mm, 70 mm, 80 mm, 100 mm, 120 mm, 140 mm.
• Thermal conductivity: 30 mm: 0.034 W/m·K; 40–50 mm: 0.035 W/m·K; >50 mm: 0.036 W/m·K.
• Compressive strength: 0.30 N/mm².
• Ozone depletion potential (ODP): Zero.
• Global warming potential (GWP): <1 kg CO₂ Eq./kg.

Bauder XPS (500) Inverted Insulation Flatboard.

Guidance for specification option:

Insert required thickness.

• Type: High performance rigid extruded polystyrene insulation boards.
• Facing: Smooth self-finished.
• Density: 35 kg/m³
• Standard board size: 1250 x 600 mm. Standard board size: 1250 x 600 mm.
• Board thickness: 40 mm, 50 mm, 60 mm, 70 mm, 80 mm, 100 mm, 120 mm, 140 mm.
• Thermal conductivity: 40–60 mm: 0.034 W/m·K; >60 mm 0.036 W/m·K.
• Compressive strength: 0.50 N/mm².
• Ozone depletion potential (ODP): Zero.
• Global warming potential (GWP): <1 kg CO₂ Eq./kg.

BauderGLAS Inverted Insulation.

Guidance for specification option:

Insert required thickness.

• Type: Cellular glass with pre-applied inorganic coating on the topside. Both the core material and the coating have an A1 reaction to fire classification and are therefore non-combustible. Where more than 1 layer of insulation is required, BauderGLAS Slab T3+ will be used as the base layer.
• Facing: Pre-applied inorganic coating.
• Density: 100 kg/m².
• Standard board size: 600 x 450 mm.
• Board thickness: 100 mm, 120 mm, 140 mm, 160 mm, 180 mm, 200 mm.
• Board thickness (base layer): for thicknesses over 200 mm, refer to BauderGLAS Slab T3+ product for information for the base board of insulation.
• Thermal conductivity: 0.043 W/m·K.
• Compressive strength: 0.4N/mm².
• Ozone depletion potential (ODP): Zero.

Loose laid (and suitably ballasted).

Guidance for specification option:

• Setting out: Loose lay insulation directly over the capping sheet to brick pattern with staggered joints. Minimize cutting and avoid small pieces at perimeters and penetrations. Dependent upon the total thickness required, it may be necessary to construct the insulation using two layers of board. The manufacturer/supplier can advise on the available combination options.
• Joints: Butt together.
• Loading over inverted insulation (minimum): Ballast (landscaping) should be installed onto the Bauder WFRL Membrane (Water Flow Reducing Layer) to a minimum depth required to achieve a permanent minimum 80 kg/m² and load which prevents wind uplift and flotation of the insulation in high winds and/or heavy rainfall.
• Additional loading at perimeters: On high buildings in more exposed areas, wind uplift may be a problem and in these instances paving slab ballast must be considered. Paving slabs should be a minimum of 50 mm thick. The slabs should be laid on paving slab supports of minimum 175 mm diameter (or equivalent base area).
• All final details must to be confirmed with Bauder before proceeding.

Landscaping/ Ballast options.

Guidance for specification option:

Consult manufacturer for further details.

Not required.

Bauder Aluminium Termination Bar.

Guidance for specification option:

Natural finish aluminium (25 x 6 mm flat plate) used at upstand details to give protection to the top edge of the waterproofing. Usually covered by a metal/ lead counterflashing. It should be restricted to use on upstands where a chase cannot be cut into the wall.

Bauder GRP Termination Bar.

Guidance for specification option:

Black glass reinforced plastic (GRP) alternative to a lead counterflashing for use at upstand details to give protection to the top edge of the waterproofing. It should be restricted to use on upstands where a chase cannot be cut into the wall.

Bauder Hot Melt Compact – Vertical Outlet (DN100).

Guidance for specification option:

A thermally insulated rainwater outlet with vertical spigot designed for use when connecting to conventional gravity drainage systems, giving thermal continuity and excellent flow rate performance.

The high thermal value of the rigid foam body prevents condensation from forming on the underside of the outlet body.

The integrated screw down clamping ring and neoprene gaskets ensure total waterproofing security between the waterproofing system and the outlet.

Manufactured as a one-piece rigid polyurethane (PUR) foam body that forms the integral sump and spigot. It is manufactured with pre cast studs to receive the fasteners of the clamping ring. This ensures full mechanical sealing between the outlet unit and the Hot Melt Waterproofing and Protection Sheet. A tough, but lightweight, polyamide domical leaf grille permits free flow of water, whilst preventing leaf litter or other debris from entering the outlet. This push fit grille is easily removed to allow for maintenance.

A core hole of 250 mm diameter must be cut in the roof deck to accommodate the outlet. In all cases, during installation, the outlet body must be mechanically fixed to the deck.

Hot Melt Compact – Insulated Vertical Outlets are suitable for connection to:

• 110 mm PVC-U “O” ring socketed soil grade pipe to BS 4514: 1983.
• Socketed and socket-less cast iron pipework to BS 416: 1973 and EN 887.
• Socketed pipework will require cold caulking or PVC to cast iron adaptors. Socketless pipework can be connected using an appropriate SML mechanical coupling.
• PE-HD pipework with appropriate SML mechanical coupling BS EN 12056-3: 2000 Flow rates (L/s).

Flow rate figures (where applicable) are based on BS EN 12056:3: 2000, typically taken using a 35 mm header of water including leaf grille, which for the Hot Melt Compact – Insulated Vertical Outlet gives a flow rate performance of 6.1 L/s.

Bauder Parapet Emergency Overflow Stainless Steel DN70.

Guidance for specification option:

Provides a visible overflow for water build up at roof level. Can be used as part of a Bauder Blue Roof solution.

The overflow opening should be positioned approx. 35 mm above the lowest point of the waterproofing or impermeable landscape finish. For Blue Roofs, the bottom of the overflow opening should be positioned level with the top of the H-Max. It is used in conjunction with other roof drainage outlets to ensure that there is no water ingress into the building and that the structural load of the roof is not exceeded and provides a visible warning that the roof is holding excessive water.

They are not suitable or intended for connection to internal pipework that is within a wall construction or boxed in and is inaccessible after construction.

Bauder rooflights/ glazing/ ventilation.

Guidance for specification option:

All these glazing products are fully compatible with the roof waterproofing systems. Consult manufacturer for details and insert requirements.

• BauderDOME Rooflight.
• Bauder Euroglaze Rooflight.
• Bauder Special Modular Rooflight.
• Bauder Continuous Rooflight.
• Bauder Walk-on Rooflight.
• Bauder Direct Glazing.
• Bauder AOV.
• Bauder Modular Link Glazing.
• Bauder Structural Rooflight.
• Bauder Fire Rated Rooflight.