IKO Permatec Anti-Root Hot Melt Roofing System

PermaTEC Anti-Root Hot Melt Green Roof Waterproofing Systems incorporate PermaTEC Anti-Root and Permatec Ecowrap compounds, formulated from a combination of refined bitumen, synthetic rubbers and other additives. PermaTEC Anti-Root membrane also incorporates an in-built root inhibitor. The membrane is applied in two layers to provide a waterproofing layer with a nominal coating thickness of 6 mm.

The PermaTEC EcoWrap and PermaTEC Anti-Root waterproofing membrane compounds have a recycled content of 45% by mass of the total product.

The two main system build-ups used for green roof and roof garden applications are:

• PermaTEC EcoWrap membrane incorporating PermaFLASH-R reinforcement finished with a layer of IKO Roofgarden 4APP AD/F 7.5 m

• PermaTEC Anti-Root membrane incorporating PermaFLASH-R reinforcement finished with a layer of PermaGUARD F.

The membranes are used in conjunction with a range of reinforcement membranes, protection membranes and boards, including:

• PermaFLASH-R — a 55 g·m–2 polyester reinforcing scrim

• PermaFLASH-D150 — a 1.25 mm thick and 150 mm wide flexible detailing sheet, used as a reinforcement layer over cracks, construction joints and changes in materials, and where minor movement may occur

• PermaFLASH-D500 — a 1.25 mm thick and 500 mm wide flexible detailing sheet, used as a reinforcement at rainwater outlets

• PermaGUARD-F — a 180 g·m–2 sand-surfaced, polyester-based bitumen membrane protection layer

• PermaGUARD-M — a 180 g·m–2 slate-surfaced, high-performance torch-applied bitumen membrane protection layer for use on details which will not be covered by the surface finishes

• PermaGUARD-HDPB — a 3 mm thick high-density polymeric protection board

• PermaGUARD-PB — a 3.2 mm thick protection board fabricated with a bituminous core sandwiched between two layers of non-woven glassfibre reinforcement

• IKO Roofgarden 4APP AD/F 7.5 m — a slate-surfaced, polyester-based, APP modified bitumen containing a root inhibitor, installed as a protection layer in PermaTEC Ecowrap green roof specifications

• IKO PermaTEC High Penetration Primer — a brush- or roller-applied bituminous priming solution used in the preparation of cementitious surfaces prior to the application of the membrane

• IKO PermaTEC Polymer Primer — a brush- or roller-applied synthetic rubber-based priming solution used in the preparation of cementitious surfaces prior to the application of the membrane.

Other products used with the systems include:

• IKO Plasdrain — a range of drainage boards

• Inverted Roof Insulation Board — insulation used in inverted/protected roofs including intensive/extensive green roofs

• proprietary expansion joint systems

• IKOgreen Vegetation — for use in roof garden applications

• IKOgreen Growing Medium — for use in roof garden applications

• IKOgreen Plasfeed — a range of drainage/moisture retention layers for use in roof gardens applications

• Upstand Insulation Board — insulation with a weather-resistant facing board, used for upstand detailing

• PermaFLASH-UN — a 1.5 mm thick and 300 mm wide un-cured neoprene rubber reinforcement sheet used at construction joints and where minor structural movement is anticipated.