Trade /DIY supplier

of EPDM rubber roof systems, kits and


Shop with us and your card details will be 100% secure


Value for money. On orders placed before 2pm


Professional help and advice from experienced flat roofers

This product is currently out of stock. Please Click Here to contact with Rubber Roofing

Soudal Soudatherm Roof 250 Combi-Box Contractor Pack

Availability: Out of Stock
Excl. VAT: £74.22 Incl. VAT: £89.06
Moisture curing one-component PU adhesive for the efficient, clean, economical and durable bonding of roof insulation panels.


+ -
Add to basket

Be the first to review this products

  • Product Info
  • Technical
  • Installation
Soudatherm Roof 250 is a polyurethane foam adhesive in an aerosol can.

Moisture curing one-component PU adhesive for the efficient, clean, economical and durable bonding of roof insulation panels.

The Soudal Soudatherm Roof 250 Combi-Box Contractor Pack is a multi-pack roofing adhesive kit for projects up to 60M². Each pack contains 5 canisters of Soudatherm Roof 250 roofing adhesive, 1 applicator gun and 1 canister of Soudafoam Gun & Foam cleaner. Used for the bonding of roofing insulation boards onto most underlying roofing substrates, including vapour barriers. The characteristics of this adhesive make it also suitable for uneven surfaces. The adhesive is applied using the Soudafoam PU foam applicator gun supplied in the kit. The gun and any uncured overspills can be cleaned using the Soudafoam Gun & Foam cleaner during and after completion of the project


  • Small canister format sprayable roofing insulation adhesive

  • Kit format with gun and cleaner

  • 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


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 (multilayer), 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

  • 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.