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Cold Melt® Liquid Applied Membrane - Liquid-Applied Roof Waterproofing

Name: Cold Melt® Liquid Applied Membrane - Liquid-Applied Roof Waterproofing
Brand: Proteus Waterproofing
SKU: sdJe7iZzK4XvQCZLzKUUSt

Verified by manufacturer today

Built-up roof (protected warm)

Proteus Waterproofing

Third party certifications:

BBA Agrément Certificate
Certificate type
BRE Certificate
Certificate type
ISO 9001 Quality Management
Certificate type

A multi-component polyurethane-based liquid applied membrane for use as a zero falls waterproofing system for inverted roofs, flat roofs, podium decks, balconies, blue roofs and living/green roofs.

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+44 (0)1268 777871 Website

Application

For prepared concrete, asphalt and wood substrates.

Satisfactory for use as a protected waterproofing layer on zero fall roofs and flat roofs with limited or pedestrian access in the following specifications:

Inverted roofs.
Protected roofs, e.g. covered by pavers or other suitable protection.
Green roof and roof gardens.

Description

A polyurethane two-part, elastomeric, cold liquid applied membrane, waterproofing system. The system provides seamless leak protection to inverted roofs, flat roofs, podium decks, balconies, blue roofs and living/green roofs.

Features and benefits:

BBA Certified - 16-5311.
Inverted roofs.
Podium decks.
Balconies.
Blue roofs.
Extensive green roofs.
Intensive green roofs.
Biodiverse roofs.
Roof gardens.
Can be laid on a flat roof deck with zero falls.
Cold application removes risk of fire.
Seamless waterproofing.
High solids at 99.6% (by weight) provide an elastomeric, impervious, tough and seamless membrane, preventing moisture transmission.
Extremely low odour in wet state, curing to an inert system.
Durable and does not embrittle with age.
Performance equalling lifetime of building, when covered.
Recycled rubber crumb and other renewable elements contributes to sustainability.
Chemical resistant.
Flexible and crack resistant, including crack bridging at low temperatures.
High bond strength.
Resistant to dynamic stress.
NHBC Standards 2023.

All works shall be carried out in accordance with the requirements of BS 6229: 2018 Code of Practice for flat roofs with continuously supported coverings, and BS 8217: 2004 Reinforced bitumen membranes for roofing Code of Practice.

System components:

Cold Melt® Membrane — a two-part, liquid-applied polyurethane consisting of a resin component and a hardener.
Cold Melt® DPM Primer — a two-part primer for use in preparing concrete substrates and polymer-modified sand/cement screeds with a moisture content greater than 75% relative humidity, prior to application of the carrier membrane.
Pro-Prime® SA — a single component primer for use in preparing timber and concrete substrates and polymer-modified sand/cement screeds with a moisture content less than 75% relative humidity, prior to application of the carrier membrane.
Pro Vapour Control/Carrier Membrane SA — a 0.6 mm thick, self-adhesive carrier membrane for use over primed substrates prior to application of Cold Melt® Membrane.
Pro-Grit 0.7–1.2 mm — kiln-dried quartz sand broadcast into wet Cold Melt® DPM, to produce a mechanical key for sand/cement screeds and bedding mortars when used as an alkali protection layer.

Consult manufacturers literature for component specific technical information, and for details regarding preliminaries, structure and loadings, liability information, and further guidelines.

General information

Color	Black Guidance for specification option: Cold Melt®. White Guidance for specification option: Cold Melt® UV Top. Grey Guidance for specification option: Cold Melt® UV Top. Manufacturer guidance Nine additional colours standard for Cold Melt® UV Top. Available in RAL & British Standard colours, subject to quantity and extended deliver times.
Finish	Matt
Material	Polyurethane Guidance for specification option: Elastomeric. Resin Rubber
Shape	Formless
Length	Bespoke
Width	Bespoke
Height	Bespoke
Warranty description	25 year Guidance for specification option: Guarantee.

Uniclass	Ss_30_40_30_42 Liquid-applied inverted roof covering systemsPrimary Ss_45_40_47_40 Intensive green roof systems Ss_30_40_30_43 Liquid-applied warm roof covering systems Ss_30_40_30_07 Blue roof systems Ss_45_40_47_09 Brown roof systems Ss_30_40_30_40 Liquid-applied cold roof covering systems Ss_45_40_47_28 Extensive green roof systems Ss_45_40_47_75 Semi-intensive green roof systems
CAWS	J31/353 Waterproof coating J31/10 Warm deck roof coating J31/110 Cold deck roof coating J31/120 Warm deck roof coating J31/130 Inverted roof coating Q37/120 Simple intensive green roof Q37/130 Extensive green roof Q37/110 Intensive green roof J31/5 Cold deck roof coating J31/12 Inverted roof coating

Specification data - Liquid-applied inverted roof covering systems

Preparation	-
Horizontal work	Pro-Prime® SA. Guidance for specification option: For Concrete/ Timber Deck. For best results ensure that surfaces to be primed are free from oil or dust. Apply Pro-Prime® SA by roller or brush at a rate min of 5 m²/lit (the green colour will indicate the treated area); refill roller if ‘cobwebbing’ appears. Avoid puddling of the primer. Drying time will be affected by surface porosity, film thickness and temperature and can vary between 40-90 minutes. Pro-Prime® SA will remain tacky even after dry. To test, use the back of a glove or dry object to press into the primer and remove; there should be no transfer of primer when the primer is ready. It is essential that sufficient drying time is allowed as any entrapment of solvent will result in blistering/ delamination. Only prime areas that will be covered with Pro-Carrier SA within 2-3 hours. Avoid walking over areas already primed. Cold Melt® DPM. Guidance for specification option: For green concrete. Only to be used after consultation with Proteus technical team. Minimum rate 0.4 kg/m². Cold Melt® DPM can be used on green concrete with a RH over 75%. Pro-Sealer WB. Guidance for specification option: For Brickwork/ Blockwork/ Porous Surfaces. Apply Pro-Sealer WB to all areas to be waterproofed at a minimum rate of 0.25 L/m² (Porous substrates may require a second coat). Ensure that the primer is fully cured prior to the waterproofing system being applied. Pro-Epoxy Primer. Guidance for specification option: For Metal Substrates. Apply Pro-Epoxy Primer to all areas to be waterproofed at a minimum rate of 0.17 L/m². Ensure that the primer is fully cured prior to the waterproofing system being applied.
Skirtings and vertical work	Pro-Prime® SA. Guidance for specification option: For Concrete/ Timber Deck. For best results ensure that surfaces to be primed are free from oil or dust. Apply Pro-Prime® SA by roller or brush at a rate min of 5 m²/lit (the green colour will indicate the treated area); refill roller if ‘cobwebbing’ appears. Avoid puddling of the primer. Drying time will be affected by surface porosity, film thickness and temperature and can vary between 40-90 minutes. Pro-Prime® SA will remain tacky even after dry. To test, use the back of a glove or dry object to press into the primer and remove; there should be no transfer of primer when the primer is ready. It is essential that sufficient drying time is allowed as any entrapment of solvent will result in blistering/ delamination. Only prime areas that will be covered with Pro-Carrier SA within 2-3 hours. Avoid walking over areas already primed. Cold Melt® DPM. Guidance for specification option: For green concrete. Only to be used after consultation with Proteus technical team. Minimum rate 0.4 kg/m². Cold Melt® DPM can be used on green concrete with a RH over 75%. Pro-Sealer WB. Guidance for specification option: For Brickwork/ Blockwork/ Porous Surfaces. Apply Pro-Sealer WB to all areas to be waterproofed at a minimum rate of 0.25 L/m² (Porous substrates may require a second coat). Ensure that the primer is fully cured prior to the waterproofing system being applied. Pro-Epoxy Primer. Guidance for specification option: For Metal Substrates. Apply Pro-Epoxy Primer to all areas to be waterproofed at a minimum rate of 0.17 L/m². Ensure that the primer is fully cured prior to the waterproofing system being applied.
Carrier membrane	-
Type	Pro-Carrier Membrane SA. Guidance for specification option: Self-adhesive bituminous waterproofing membrane (self-adhesive low-thickness bituminous compound self-protected by an aluminium film). 0.6 mm thick. Apply the Pro-Carrier Membrane SA to the primed areas of waterproofing to be installed. Side laps should be a minimum of 100 mm with end laps a minimum of 150 mm. The Carrier Membrane should be applied to all vertical surfaces.
Fixing	Pro-Prime® SA.
Liquid-applied waterproofing	-
Type	Cold Melt® Membrane. Guidance for specification option: Cold Melt® Flexible Polyurethane Membrane Resin at minimum rate 2.5 kg/m², the product is applied in two applications, the first at 1.5 kg, and the second at 1.0 kg to all vertical surfaces, and in one application to all horizontal surfaces.
Surface treatment	Not required. Cold Melt® UV Top to exposed details. Guidance for specification option: For exposed details only. High solids polyurethane liquid resin. Tested in accordance with the requirements of BS EN 1504-2. Available white, black, grey or in nine other standard colours. Available in RAL & British Standard Colours subject to quantity and extended delivery times. Consult manufacturer for details.
Insulation	-
Type	Proteus Pro-Therm PIR. Guidance for specification option: Proteus Pro-Therm Insulation PIR is a fibre-free rigid polyisocyanurate (PIR) insulation core faced with coated glass tissue on one side and bituminized glass tissue with polypropylene fleece on the other. The PIR fibre free insulation core is temperature tolerant and withstands the application of hot bitumen and asphalt to the surface at up to 230°C. Proteus Pro-Therm HP PIR. Guidance for specification option: Proteus Pro-Therm HP PIR used either stand alone or with tapered or flat board insulation as a premium performance board, providing a slim solution for use on new and existing roofs with timber or concrete decks. Proteus Pro-Therm HP PIR Plus. Guidance for specification option: Proteus Pro-Therm HP PIR Plus used either stand alone or with tapered or flat board insulation as a premium performance board, providing a slim solution for use on new and existing roofs with timber or concrete decks. Proteus Pro-Therm Mineral Wool. Guidance for specification option: The Proteus Pro-Therm Mineral Wool has been specifically developed for use on flat roof and refurbishment projects. The product is manufactured with an integral mineral coating fibre fleece, which for adhered membranes, secured a strong bond between membrane and insulation whilst limiting the amount of adhesive required. The insulation is compatible with all commonly used flat roof membranes including bitumen and liquid applied membranes. Proteus Pro-Therm Cellular Glass. Guidance for specification option: Proteus Pro-Therm Cellular Glass consists of a Cellular Glass slab, the upper surface is unfaced. The insulation is manufactured from specially graded recycled glass (≥60%) and natural raw materials which are available in abundant supply (sand, dolomite, lime). The product is totally inorganic, contains no ozone depleting propellants, flame resistant additives or binders. Without VOC or other volatile substances. Proteus Pro-Therm VIP. Guidance for specification option: Proteus Pro-Therm VIP Insulation is a high performance Vacuum Sealed Insulation Panel with a microporous core which is evacuated, encased and sealed in a thin, gas-tight envelope, giving outstanding thermal conductivity, with the thinnest possible solution to insulation problems, suitable for a variety of roof types and designs. Proteus Pro-Therm (XPS) Upstand Board. Guidance for specification option: Consult manufacturer for details. Proteus Pro-Therm Non-Combustible Upstand Board 56mm. Guidance for specification option: Consult manufacturer for details. Proteus Pro-Therm Mineral Wool with Proteus Pro-Cold detailing. Guidance for specification option: Consult manufacturer for details. Proteus Pro-Therm PIR with Proteus Pro-Cold detailing. Guidance for specification option: Consult manufacturer for details.
Fixing	Pro-Bond Foaming adhesive. Guidance for specification option: For warm deck roof build-ups. Compatible with the following vapour barriers and substrates: Bituminous vapour control layers, concrete decks, galvanized metal decks, mastic asphalt, oriented strand boards, plywood, proprietary vapour barriers and existing bituminous built up roofing. Compatible with the following insualtion boards: bituminous felt faced, cork insulation, cellular glass insulation, expanded polystyrene (eps), extruded polystyrene (xps), glass tissue faced, rock fibre and wood fibre. Manufacturer guidance Consult manufacturer for details.
Water control layer	Not required. Proteus Low-K Water Reducing Layer. Guidance for specification option: Type: Spun bonded polyethylene geotextile . All abutting sheets must have minimum 300 mm overlaps. When used for attenuation all joints are to be taped.
Ballast	Not required - see Surface finish property.
Fill to perimeter upstands	- Manufacturer guidance Insert requirements or omit.
System accessories	Not required. Proteus Pro-Living Biodiverse Roof. Proteus Pro-Living Blue Roof. Proteus Pro-Living Extensive Green Roof. Proteus Pro-Living Green Roof. Proteus Pro-Living Intensive Green Roof. Proteus Pro-Living Semi-Intensive Wildflower Roof. Manufacturer guidance Consult manufacturer and insert requirements or omit.
Execution	- Manufacturer guidance Please consult the manufacturer for execution requirements, including substrate requirements and preparation.
System completion	Wet electronic leak test. Guidance for specification option: Completed after system installation. Required for all inverted/ buried systems prior to the waterproofing membrane being covered.

Air and vapour control layer	Pro-Vapour Control/Carrier Membrane SA. Guidance for specification option: For built-up warm roofs, built-up protected roofs and built-up inverted roofs.
Air and vapour control layer fixing	Pro-Prime® SA.
Substrate	Structural concrete. Plywood deck. Cross Laminated Timber deck. Green concrete. Brickwork. Blockwork. Porous surfaces. Metal. Show more Manufacturer guidance Consult manufacturer for details on substrate requirements.
Colour	Black. Manufacturer guidance Cold Melt®.
Surface finish	Stone ballast. Guidance for specification option: Minimum 50 mm. Pre-cast concrete paving slabs. Guidance for specification option: Minimum 50 mm. Pro-Living® Green Roofs.
Solids content	99.6% (Cold Melt®); 95% (Cold Melt® UV Top).
Density	1 kg/L (Cold Melt®); 1.6 kg (Cold Melt® UV Top).
Curing time	24 hours (10°C); 12 hours (20°C); 8 hours (30°C). Manufacturer guidance Foot traffic time.
Overcoating	24—36 hours (10°C); 12—36 hours (20°C); 6—24 hours (30°C).
Working time	30 minutes (10°C); 15 minutes (20°C); <10 minutes (30°C).
Reaction to fire classification	Class E. Guidance for specification option: To Commission Decision 2010/85/EU.
Container capacity	5 kg. Guidance for specification option: Per box. 10 kg. Guidance for specification option: Per box. 15 kg. Guidance for specification option: Per box. Manufacturer guidance Cold Melt®.
Life expectancy	Building design life (when covered).
Third-party certification	BBA Certificate. Guidance for specification option: Certified for use as a waterproofing layer in inverted roofs and protected flat roofs, including zero pitched roofs.