AIM High Impact Soffit Liner Boards offer excellent
impact resistance and are used to provide an
insulated lining to semi exposed soffits. They can
also be used as internal linings for walls and ceilings,
especially where robustness is required.
They are available with a choice of insulation backing boards, typically Stonewool or rigid foams such as phenolic, PIR or XPS.
The fibre cement facing board can be easily decorated to match design and colour schemes.
Pre-decorated and through coloured facing boards are available.
Suitable for use with concrete soffits where a thermal or acoustic performance is required.
Available faced with UHD decorative rock fibre
board, suitable for fully exposed exterior cladding
Choice of thermal and acoustic insulation:
Compression Resistant Rockfibre (CRR) - High density, high compressive strength, acoustic grade resilient rock fibre insulation slab.
Extruded Polystyrene (XPS) - Small closed cell extruded polystyrene for optimum insulation, high compressive strength and resistance to moisture.
Expanded Polystyrene (EPS) - Versatile expanded polystyrene for optimum value and light weight.
PIR - Low thermal conductivity for thinner solutions.
Phenolic (PHN) - Phenolic foam has very low thermal conductivity.
The facing of AIM High Impact Soffit Liner Boards can be painted without any special priming using an alkali resistant paint or emulsion. Two coats of paint will usually give a satisfactory finish.
All AIM High Impact Soffit Liner Boards are made to order.
AIM are able to manufacture insulation building boards with tissue or foil facings for soffit applications that do not require a high impact board finish. Please contact our sales office for further details
The standard board configuration is either 1200 x 600mm or 1200 x 2400mm insulation faced with a 6mm fibre cement board. The thickness is determined by the thermal resistance required for the project.
AIM High Impact Soffit Liner Boards are available in
a variety of insulation boards to match the thermal
resistance required for the specification.
Specific thermal resistance details of the insulation materials varies according to the type and brand of insulation used. Precise details can be given on request.
U Value calculations for the project can be undertaken upon request.
Mineral fibre backed boards can contribute to the
overall acoustic performance of the soffit / floor
In testing a 136mm thick, stone wool back High Impact Soffit liner board achieved a 34dB RW reduction in sound transmission. Please contact AIM for further details.
There is no European harmonsied standard or British
standard covering the manufacture, performance and
specification of insulated fibre cement boards.
The base insulation used is manufactured to the relevant standard for the product.
The Fibre Cement board is manufactured to EN 12467.
Acoustic testing is covered by Z11012 – Acoustic Performance BS EN ISO 10140-2.
Please contact us for further details if required.
AIM High Impact Soffit Liner Boards may be fixed
directly to concrete soffit using suitable steel
fasteners; the fixings supplier should be contacted
for advice prior to installation, especially if a hard
concrete has been specified.
Alternatively treated timber battens can be fixed to the concrete first and the AIM High Impact Soffit Liner Boards then fixed to the battens. The battens should be fixed at 300mm centres for Compression Resistant Rockfibre or 400mm centres for XPS, Phenolic and EPS, running down the length. The battens must provide at least 75mm bearing.
The Units are mechanically fixed to the battens by corrosion resistant fixings. The screws should be a pan head fixing installed with a controllable speed screw gun and not overdriven, to prevent undue compression of the insulation backing. We suggest avoiding any counter sunk fixings and hammer fixings. Please contact the sales office for more details.
Fixings are set in at least 50mm from the board edges, at the four corners of the board and at 600mm maximum centres.
Where the AIM High Impact Soffit Liner Boards are
being attached to a framed backing, such as in the
situation where they are being used to form a soffit
under a trussed eave overhang, the framing must
allow fixings at the centres specified above. Where
this is not possible, or where there are problems with
level alignment, a sub framing system needs to be
If the relative humidity of the area being lined is subject to significant variation, expansion gaps should be left between the boards to accommodate possible movement.
It may be possible to adopt a different fixing pattern dependent on the type of fixings used and the substrate in which the fixing is to be secured. Please seek advice from your nominated fixing supplier.
Where the High Impact Soffit Liner Board needs to be cut to size, a skill saw fitted with TCT blade and suitable dust extraction should be used along with the appropriate personal protective equipment.
Products are supplied on wooden pallets with edge protection and a shower proof hood. Products should be stored away from the elements until ready for installation.
This product does not contain moving parts and, if undisturbed requires no routine inspections or maintenance.
AIM Soffit Liner Boards are chemically inert, will not sustain vermin and do not encourage the growth of rot, fungi, moulds or bacteria. They are compatible with all normal building materials. They do not degrade under the usual conditions found in buildings and will perform effectively for the life of the building.
HEALTH & SAFETY
The Facing Board contains crystalline silica which may be released when dry working (cutting / drilling). The insulation boards used to make AIM Soffit Liner Boards are considered to be inert articles. Product Safety and Handling Information Sheets are available covering the various insulants and facing board used.
Global warming potential = zero
AIM High Impact Soffit Liner Boards are manufactured from a variety of insulation materials.
For product recycling of stone wool based variants, please contact: Rockwool T: 01656 868400
E: [email protected] where the insulation used is Rockwool stone wool.
To order this product the following information will be
All AIM products are made to order. Products are
typically supplied in seven to ten working days but
lead times may vary depending on existing factory
There is no minimum order quantity or value although small orders may attract transport surcharges.
Technical Support is available from our experienced
sales team on 01293 582 400 or
AIM are partners with NBS. Our products can be found on NBS Source and have been authored to NBS specification standards and have both CAWS and Uniclass 2015 classifications.