50mm Safe-R Phenolic Unilin SR/PR is a warm roof rigid phenolic foam insulation board with a composite foil facing on both sides, for use in pitched roofs in new build and refurbishment projects.

Safe-R Pitched Roof Unilin SR/PR on sloped roofs (ventilated, hybrid or warm roofs) provides the most efficient U-Values with minimal intrusion into valuable living space.

SR/PR Safe-R is manufactured to EN 13166 by Unilin Insulation with certified lambda (thermal conductivity) of 0.020 W/mK and Euroclass C s1 d0 fire classification.

The thermal bridge which occurs through the joists can be addressed by placing a layer of SR/PR to the underside, before the plasterboard is fixed.

The roof construction is a critical element in the building fabric and is an area at high risk of heat loss.

Using SR/PR will reduce heat loss while also delivering excellent thermal bridging details.

Warm Roof construction is a particularly effective way of insulating complex roofs.

SR/PR is durable, rot proof and sufficiently stable to remain effective as insulation for the life of the building.

Specification:

Thickness: 50mm

Width: 1200mm

Length: 2400mm

Size: 50mm x 1200mm x 2400mm

Pack Quantity: 6 sheets

Pack Coverage: 17.28m2

Board Coverage: 2.88m2

Profile: Square Edge

R-Value: 2.35 m2K/W

Density (Foam Core): 32kg/m3 

Thermal Conductivity: 0.020 W/mK

Compressive Strength: >120 (kPa)

Reaction to Fire: Euroclass C, s1-d0

Unilin SR/PR Safe-R Pitched Roof Board Features:

 · Reduced thermal bridging.

 · Provides the most efficient U-Values.

 · Lightweight and easy to install.

 · Reduced risk of condensation.

 · Avoids intrusion into the living area.

 · Premium phenolic rigid foam insulation.

 · Suitable for new build and refurbishment projects.

 · Suitable for domestic and non-domestic buildings.

 · Certified lambda (thermal conductivity) of 0.020 W/mK.

 · Declared Euroclass C s1 d0 fire classification.

 · Manufactured to EN 13166 by Unilin Insulation.

 · BBA Certified (certification no. 10/4803).

 · Durable, rot proof and stable.

Unilin SR/PR Phenolic Pitched Roof Insulation Board Installation Guidelines:

 · Ventilated Roof - Fix positioning battens to inner face of rafters, flush with the top edge of the timber.

 · Allow space for ventilation gaps, normally 50mm (May be reduced depending on breather membrane certification).

 · Cut boards with fine toothed saw to fit tightly between rafters, flush with the bottom of the rafter.

 · Allow slight oversize of cut to achieve ‘friction fit’ and seal any gaps with expanding foam.

 · If an additional second layer is required, this should be fixed to the underside of the rafter.

 · Run the second layer transverse to the first with joints tightly butted.

 · Fix with nails to hold insulation in place until plasterboard is installed.

 · Provide a separate vapour control layer between insulation and plasterboard or alternatively, tape the joints of the insulation with an aluminium foil tape.

 · Finish with plasterboard fixed with dry lining screws.

 · Screw fix every 150mm, 12mm from edge of boards ensuring a minimum 25mm penetration into the rafter or alternatively follow plasterboard manufacturer installations guidance.

 · Alternatively the second layer can be achieved with SR/TB-MF Drylining board.

 · Repeat steps 1 to 3 and replace the second layer with SR/TB-MF, a ready made Phenolic insulation board bonded to plasterboard.

 · Where joints between sheets of SR/TB-MF are unsupported by the rafters, timber noggins should be installed.

 · Seal and tape the joints of the plasterboard in accordance with Standard Drylining Practice.

 · Hybrid Roof - Follow the same procedure as a ventilated roof except an approved Vapour Permeable underlay is used above the rafter allowing the 50mm ventilation space to be dispensed with.

 · Typically, a 25mm unventilated void should be maintained; Agrément certification covering the membrane should be consulted.

 · Warm Roof - Ensure cavity wall insulation has continued to roof height to meet with the roof insulation.

 · Fix a treated timber stop rail to the end of the rafter at the eaves.

 · Lay SR/PR staggered jointed over the rafters.

 · Ensure joints are tightly butted and fill any gaps with expanding foam.

 · Joints should be fully supported by rafters.

 · Boards can be temporarily fixed with nails.

 · Fix 38mm x 50mm counter battens with approved fixings through the SR/PR into the rafter.

 · The amount of fixings is determined by the fixing manufacturer who can also provide wind load calculations.

 · A breathable sarking membrane should be fitted; refer to manufacturer’s Agrément certification.

 · Ventilation may have to be provided subject to that certification and minimises the risk of interstitial condensation forming on the underside of the membrane.

 · Providing an unventilated void under the membrane can improve thermal performance.

 · Secure 50mm x 25mm tiling battens through counterbatten and SR/PR to the rafter.

 · If an additional second layer is required, this should be fixed between the rafters.

 · Cut boards with fine toothed saw to fit tightly between rafters, flush with the top of the rafter.

 · Allow slight oversize of cut to achieve ‘friction fit’ and seal any gaps with expanding foam.

 · Provide a separate vapour control layer between the bottom of the rafter and plasterboard.

 · Finish with plasterboard fixed with dry lining screws.

 · Screw fix every 150mm, 12mm from edge of boards ensuring a minimum 25mm penetration into the rafter or alternatively follow plasterboard manufacturer installations guidance.

 · ACDs must be followed to ensure that installation is in accordance with current Building Regulations and accounted for in the energy calculation.

*Further information may be found in our Downloads section.

Fairly easy access to all PDF files.

Datasheet ǀ Declaration of Performance - DoP ǀ BBA Certificate ǀ Installation Guide ǀ Certificates ǀ Brochure ǀ SPEC Sheet 

*Special Product - Non returnable cancelable.