Site Conditions / Hydrostatic / PreTak
PreTak is a pre-applied vertical and horizontal high-density polyethylene (HDPE) sheet waterproofing membrane combined with a pressure sensitive adhesive backing that mechanically bonds to cast in place concrete and shotcrete in both blindside shoring and underslab applications. PreTak (46 mil/1.2mm) is a fully adhered waterproofing sheet membrane consisting of a long fiber HDPE film coated with a PSA gel and protected by a plastic release liner. PreTak is available with two selvedge edge options, a pre-treated adhesive edge or without the adhesive selvedge for creating a heat welded seam. Installation is efficient and reliable with a manufacturer-marked adhesive selvedge allowing for a watertight bond at seam overlaps. PreTak delivers superior performance in harsh conditions and can withstand all types of weather before the application of concrete.PreTak is City of Los Angeles approved as a waterproofing and methane barrier (LARR #26164) and for shotcrete
Highlights
Surpasses other fully adhered HDPE membrane systems by achieving the ideal blend between value and performance.
Suitable for a variety of critical building envelope applications, challenging site conditions and contaminated soils.
Prevents lateral water migration by forming a continuous adhesive bond to poured-in-place concrete and shotcrete.
Double width rolls reduce seams and labor.
Technical Resources
Approvals & Endorsements
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City of Los Angeles Methane and Waterproofing Approval - UES Report 944
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Architectural Drawings
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51.121.1.4.4 UNDERSLAB PENETRATION - RAISED PILE CAP WITH FULL ENCAPSULATION - NON-HYDROSTATIC
PDF51.143.1.1.21 Underslab Assembly - Vertical Transition - Hydrogel Post-Applied System (Option 1)
PDF51.143.1.1.55 Underslab Assembly - Vertical Transition - PrimeTak Post-Applied System (Option 1)
PDF51.143.1.2.21 Underslab Assembly - Vertical Transition - HydroGel Post-Applied System (Option 2)
PDF51.143.1.2.55 Underslab Assembly - Vertical Transition - PrimeTak Post-Applied System (Option 2)
PDF51.143.1.3.21 Underslab Assembly - Vertical Transition - HydroGel Post-Applied System (Option 3)
PDF51.143.1.3.55 Underslab Assembly - Vertical Transition - PrimeTak Post-Applied System (Option 3)
PDF51.144.1.1.02 Underslab Assembly - Offset Slab Transition - E.Protect Wall Assembly (Option 1)
PDF51.144.1.2.02 Underslab Assembly - Offset Slab Transition - E.Protect Wall Assembly (Option 2)
PDF51.303.2 Blindside Vertical Assembly - Sheet Pile - Backfilled With Plywood - With Drainage Course
PDF51.303.3 Blindside Vertical Assembly - Sheet Pile - Backfilled With Plywood - No Drainage Course
PDF51.321.3.1 Blindside Vertical Penetration - Shotcrete Shoring - Dowel & Rebar (Non-Hydrostatic)
PDF51.323.2 Blindside Vertical Tieback - Detensioned - 24" Sonotube Or Framed Blockout (Min. 18")
PDF51.323.3 Blindside Vertical Tieback - Detensioned - 24" Sonotube Or Framed Blockout (Min. 18") With Cut-Off Head (Option 1)
PDF51.323.4 Blindside Vertical Tieback - Detensioned - 24" Sonotube Or Framed Blockout (Min. 18") With Cut-Off Head (Option 2)
PDF51.328.3 Blindside Vertical Penetration - Multi-Conduit/Pipe Bundle With Limited Annular Space - SOE/Wood Lagging
PDF51.328.4 Blindside Vertical Penetration - Multi-Conduit/Pipe Bundle With Limited Annular Space - Shotcrete
PDF51.331.1 Blindside Vertical Assembly - Grade Termination - Reinforcement Flashing With E.Roll
PDF51.331.1.1 Blindside Vertical Assembly - Grade Termination - Reinforcement Flashing With Primetak
PDF51.331.2 Blindside Vertical Assembly - Grade Termination - Reinforcement Flashing With E.Roll With Cement Board
PDF51.331.2.1 Blindside Vertical Assembly - Grade Termination - Reinforcement Flashing With PrimeTak With Cement Board
PDF51.340.1.1.1.23 Shoring to Deck Transition - PreTak to Suspended Slab Construction Joint (Option 1)
PDF51.340.1.1.2.23 Shoring to Deck Transition - PreTak to Suspended Slab Construction Joint (Option 2)
PDF51.340.1.1.55 Wall to Deck Transition - Non-Hydrostatic - Wall PreTak to Suspended Slab Construction Joint
PDF51.340.1.2.55 Wall to Deck Transition - Hydrostatic - Wall PreTak to Suspended Slab Construction Joint
PDF51.340.2.1.1.23 Shoring to Deck Transition - PreTak Extended to Top of Suspended Slab (Option 1)
PDF51.340.2.1.2.23 Shoring to Deck Transition - PreTak Extended to Top of Suspended Slab (Option 2)
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Product Data Sheets
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