Insulation

DESCRIPTION
ProTherm ROCKWOOL^® HARDROCK^® Multi-Fix (DD) insulations boards are manufactured from volcanic rock, producing a non-combustible Dual Density Stone Wool insulation board that provided unique fire and acoustic performance. Suitable for use with EshaFlex, EshaGum, EshaPlan, EshaUniversal, ReadySeal and ParaFlex roofing systems either bonded to an AluBase XL or EshaBase air and vapour control layer using EshaStik or Insta Stik adhesive, or mechanically fastened. 

ProTherm ROCKWOOL^® HARDROCK^® Multi-Fix (DD) is available in uniform or tapered variants. Achieves LPC LPS1181: Part 1 EXT A rating, complies with Zurich School and Academy Design guide and HTM05-03 guidance for healthcare. 

SUITABLE APPLICATIONS
ProTherm ROCKWOOL^® HARDROCK^® Multi-Fix (DD) is suitable for use in warm roof applications, including those where the client requires a ‘non-combustible’ insulation board within the roof construction. When used in the warm roof applications listed in the Fire Performance section below roof assemblies incorporating ProTherm ROCKWOOL^® HARDROCK^® Multi-Fix (DD) achieve Broof(t4) Classification to BS EN 13501-5 as required by Approved Document B 2019 edition, Section B4, Limitations on roof coverings. 

ProTherm ROCKWOOL^® HARDROCK^® Multi-Fix (DD) is not suitable for use in roof terraces, enclosed balconies over heated space and insulated walkways or in an inverted roof construction. 

ProTherm ROCKWOOL^® HARDROCK^® Multi-Fix (DD) is not suitable for use in inverted roof applications on specified attachments such as projecting open balconies, projecting enclosed balconies, recessed open balconies or recessed enclosed balconies. 

CERTIFICATES
ISO 9001:2008 Quality Management System, ISO 14001:2004 Environmental Management System and BBA Certificate No. 21/5878. 

FIRE PERFORMANCE
BS EN 13501-5:2016 – When tested as part of a two layer EshaFlex Reinforced Bitumen Membrane (RBM) consisting of EshaFlex 370 FireSafe, EshaFlex 370 Plain, ProTherm ROCKWOOL^® HARDROCK^® Multi-Fix (DD), AluBase XL on a plywood deck the roofing system is classified as Broof(t4) in any thickness – see Warrington Fire EXAP Report 20553Q. 

BS 476 Part 3:2004 – When tested as part of a two layer EshaFlex Reinforced Bitumen Membrane (RBM) consisting of EshaFlex 370 FireSafe, EshaFlex 370 Plain, ProTherm ROCKWOOL^® HARDROCK^® Multi-Fix (DD), AluBase XL on a plywood deck the roofing system is classified as achieving EXT.F.A.B in any thickness – see Warrington Fire EXAP Report 20553N. 

BS EN 13501-1:2016 – ProTherm ROCKWOOL^® HARDROCK^® Multi-Fix (DD) achieves Euro Class A2, s1-d0.