Soudatherm Roof 250

Polyurethane adhesive foam in small canister format for the efficient, clean, economical and durable bonding of roofing insulation boards onto most underlying roofing substrates. The filling characteristics of the adhesive make it suitable for uneven surfaces. The adhesive can be applied efficiently and quickly with a standard or long length Soudafoam PU Foam Gun. Covers large areas much quicker than other fixing methods. Ideal for smaller applications, each canister bonds up to 14M².

Open technical data sheet

Properties

• Small canister format sprayable roofing insulation adhesive
• Fast drying
• Fast strength build-up
• High bond strength
• Suitable for most insulation boards and most roofing substrates
• Suitable for uneven surfaces
• Quicker and more efficient than other fixing methods

TDS

Technical data sheet

Instructions

• The materials should be clean and free of dust and grease. Loose parts should be removed and the surface should be coated with a primer if necessary. For renovation and especially ballasted roofs, make sure the bonding surface is firmly attached to the substructure. Adjust extrusion rate to allow for 30mm beads using the setting screw at the end of the applicator gun. Apply directly onto the surface, holding the gun at an angle of about 90° to the surface and ensure a distance of about 1 to 2 cm between nozzle and surface. The nozzle should not be in direct contact with the surface. Shake at least 30 times with the can upside down to ensure proper mixing of the ingredients and maximum yield. Thread the can tightly to the Applicator Gun. After extrusion, the panels need to be pressed down in the adhesive beads within the open time of 8 minutes. It’s recommended to shake the can after each work interruption. At least 4 beads / m² (30mm diameter) should be applied (80 to 100 g/m²). On the corners and the edges of the roof, at least 8 beads are recommended. The correct number of beads (and thus the usage of adhesive) can be calculated according to EN 1991-1-4. The region, the roof area, the location and structure height and also the location on the roof (middle, corners or edges) are factors that have to be taken into account. On uneven surfaces (for example old bituminous roofing felts), more adhesive (thicker beads up to 50mm) needs to be applied in order to make sure that there is at least 40% adhesive transfer between surface and insulation panel. Do not hammer on the boards. When the boards are pulled back or displaced (and the adhesive layer is broken), it’s necessary to apply extra adhesive to get a good bond. If not yet cured, use Soudal Gun & Foam Cleaner for cleaning. Cured adhesive should be removed mechanically. After 30 minutes, the roofing membrane can be placed on the insulation panels. Limit walking on the panels to a minimum during the first 60 minutes.

Applications

• Bonding of most common roofing insulation materials such as PIR/PUR (mineral-coated glass fibre, bituminous glass fibre and aluminium foiled), expanded polystyrene, mineral insulation materials, extruded polystyrene, phenolic foam and mineral wool. These materials can be bonded onto most underlying surfaces; insulation onto insulation (multi-layer), masonry surfaces, steel roof decks, bituminous roofing felts, wooden boards, hard PVC, plaster. Also directly onto vapour barriers, subject to the technical approval of the manufacturer.