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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PreTak City of LA Approval
PDFArchitectural Drawings
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51.143.1.1.21 Underslab Assembly - Vertical Transition - Hydrogel Post-Applied System (Option 1)
PDF DWG51.143.1.1.55 Underslab Assembly - Vertical Transition - PrimeTak Post-Applied System (Option 1)
PDF DWG51.143.1.2.21 Underslab Assembly - Vertical Transition - HydroGel Post-Applied System (Option 2)
PDF DWG51.143.1.2.55 Underslab Assembly - Vertical Transition - PrimeTak Post-Applied System (Option 2)
PDF DWG51.143.1.3.21 Underslab Assembly - Vertical Transition - HydroGel Post-Applied System (Option 3)
PDF DWG51.143.1.3.55 Underslab Assembly - Vertical Transition - PrimeTak Post-Applied System (Option 3)
PDF DWG51.144.1.1.02 Underslab Assembly - Offset Slab Transition - E.Protect Wall Assembly (Option 1)
PDF DWG51.144.1.2.02 Underslab Assembly - Offset Slab Transition - E.Protect Wall Assembly (Option 2)
PDF DWG51.170.2.1 Underslab Assembly - Repair - Punctures & Tears 1" Or Greater (Positive Lap Seam)
PDF DWG51.303.2 Blindside Vertical Assembly - Sheet Pile - Backfilled With Plywood - With Drainage Course
PDF DWG51.303.3 Blindside Vertical Assembly - Sheet Pile - Backfilled With Plywood - No Drainage Course
PDF DWG51.321.3.1 Blindside Vertical Penetration - Shotcrete Shoring - Dowel & Rebar (Non-Hydrostatic)
PDF DWG51.323.2 Blindside Vertical Tieback - Detensioned - 24" Sonotube Or Framed Blockout (Min. 18")
PDF DWG51.323.3 Blindside Vertical Tieback - Detensioned - 24" Sonotube Or Framed Blockout (Min. 18") With Cut-Off Head (Option 1)
PDF DWG51.323.4 Blindside Vertical Tieback - Detensioned - 24" Sonotube Or Framed Blockout (Min. 18") With Cut-Off Head (Option 2)
PDF DWG51.328.3 Blindside Vertical Penetration - Multi-Conduit/Pipe Bundle With Limited Annular Space - SOE/Wood Lagging
PDF DWG51.328.4 Blindside Vertical Penetration - Multi-Conduit/Pipe Bundle With Limited Annular Space - Shotcrete
PDF DWG51.331.1 Blindside Vertical Assembly - Grade Termination - Reinforcement Flashing With E.Roll
PDF DWG51.331.1.1 Blindside Vertical Assembly - Grade Termination - Reinforcement Flashing With Primetak
PDF DWG51.331.2 Blindside Vertical Assembly - Grade Termination - Reinforcement Flashing With E.Roll With Cement Board
PDF DWG51.331.2.1 Blindside Vertical Assembly - Grade Termination - Reinforcement Flashing With PrimeTak With Cement Board
PDF DWG51.340.1.1.1.23 Shoring to Deck Transition - PreTak to Suspended Slab Construction Joint (Option 1)
PDF DWG51.340.1.1.2.23 Shoring to Deck Transition - PreTak to Suspended Slab Construction Joint (Option 2)
PDF DWG51.340.1.1.55 Wall to Deck Transition - Non-Hydrostatic - Wall PreTak to Suspended Slab Construction Joint
PDF DWG51.340.1.2.55 Wall to Deck Transition - Hydrostatic - Wall PreTak to Suspended Slab Construction Joint
PDF DWG51.340.2.1.1.23 Shoring to Deck Transition - PreTak Extended to Top of Suspended Slab (Option 1)
PDF DWG51.340.2.1.2.23 Shoring to Deck Transition - PreTak Extended to Top of Suspended Slab (Option 2)
PDF DWGPre-Built Submittals
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