How to Select the Right Tape
SOLITEX Mento Plus roof membrane ready for TESCON Vana tape. Credit: 475
You know you need a great tape and you know Pro Clima tapes are the best. This rundown will help you select the right tape for the job at hand. If you need complete information, specifications and installation instructions click the product pages linked in each description below.
So let's break down your taping needs by which basic components you're taping. In order of appearance:
- Roof membrane to membrane(SOLITEX) and to wood: TESCON Vana
- TESCON Vana is a pressure activated SOLID acrylic adhesive tape. It is available in a variety of widths.
- Between roof battens and membranes with penetrating fasteners: TESCON NAIDECK
- TESCON NAIDECK is a self-sealing double sided butyl rubber adhesive tape.
- Roof Sheathing (Wood Fiberboard, OSB, Plywood, Exterior Gyp Board): TESCON Vana
Note on Primer: Sheathings, particularly wood fiberboard or OSB may be rough and/or porous and will require the application of Pro Clima's Primer RP to ensure a robust bond. Test application of TESCON Vana by pressurizing tape, waiting several hours, then peel and verify tenacity of bond. Typical OSB does not require a primer while typical wood fiberboard does require a primer.
EXTERIOR WALLS & BASEMENTS
SOLITEX Fronta Quattro taped with TESCON Invis. Credit: Ryall Poerter Sheridan Architects
- Sheathing (Wood Fiberboard, OSB, Plywood, Exterior Gyp Bd): TESCON Vana
- See note above regarding primer.
- Membranes (SOLITEX behind closed joint rainscreen): TESCON Vana
- Membranes (SOLITEX Fronta Quattro behind open joint rainscreens): TESCON Invis
- TESCON Invis is functionally the same as TESCON Vana, but is black and has no writing on it.
- Membranes (Poly sheets): TESCON Vana
- While most poly sheets can be taped with TESCON Vana, with excess residue on the poly sheets adhesion can be unsatisfactory. Quality of adhesion should be confirmed with an adhesion test.
- Poured Concrete (to Wood): TESCON Vana, Extoseal Encors, or Extoseal Finoc
- Because concrete is porous Primer RP is recommended. See video of primer installation here.
- TESCON Vana + Primer RP is the vapor open option. Use Extoseal Encors if a flexible, tough, but vapor closed connection will work best or if working below 40F. In warmer weather you can also use Extoseal Finoc to air seal sheating to foundations/slab or under sills in timber structures. It creates a cost effective, durable, self sealing capillary break.
- Poured Concrete (to Membranes): recommended CONTEGA HF caulk adhesive, with an expansion loop in the membrane. Alternative is TESCON VANA and Primer RP.
- Concrete Block and Stone (to Membranes): CONTEGA HF caulk adhesive (if needed in combination with TESCON Vana with Primer RP), Extoseal Encors, or Extoseal Finoc
- Stucco/Plaster (to Membranes):CONTEGA SOLIDO SL/ CONTEGA PV for bonds without need to use primer - or TESCON Vana but then substrate needs Primer RP
Installing Roflex gasket with TESCON tape at duct penetration. Credit: Eco Homes of Vermont
- New wires: Kaflex is an EPDM gasket with integral TESCON Vana tape *
- Small pipes (.5" to 1.5" dia): above TESCON tapes and Roflex 20
- Roflex 20 is an EPDM gasket with integral TESCON Vana adhesive connection.
- Larger diameter pipes: above TESCON tapes and Roflex 30, 50, 100, 150, 200, 250, 300 (from 1.5" dia to 12.75" dia) with TESCON Vana tape
- Roflex 30 - 300 are EPDM gaskets that require separate tape connection to air barrier.
- Wires, Pipes & Beams (already in place): TESCON Vana, TESCON Profil, TESCON Profect, or CONTEGA SOLIDO SL / SL-D
Installing TESCON Profil tape at window to INTELLO membrane.
- Exterior face taping over window flange (U.S. style): TESCON Vana 150
- Exterior face taping to recessed window frame (European Passive House style): TESCON Profil, TESCON Profect, or CONTEGA EXO
- See TESCON Profil blog post on pre-making inside corners, here.
- Exterior zero profile taping to side of window frame (before installation): CONTEGA EXO
- Window sill pan: EXTOSEAL ENCORS (6,8,12")
- Use Extoseal Encors for the sill and up side 4-6" either taped to front of window frame (Tilt & turn windows that accommodate this) or under the full window frame to a back dam or end of the slope of sill. If Extoseal sill goes under window frame, use vapor open CONTEGA SOLIDO EXO, CONTEGA FIDEN EXO, TESCON Profil, or TESCON Profect to waterproof front edge of window to sill. See video examples of Extoseal Encors being applied here or here.
- Window buck rough opening jambs and head: TESCON Vana
- Interior face taping to window frames: TESCON Profil, TESCON Profect, CONTEGA SOLIDO SL
- Interior zero profile taping to window frame:CONTEGA SOLIDO SL-D, applied before installation of frame
INTERIOR CEILINGS, WALLS & FLOORS
CONTEGA FC tape ready to accept stucco over straw bale
Credit: New Frameworks Construction
All exterior material connections noted above, plus:
- Membranes (INTELLO, INTELLO Plus or DB+): TESCON Vana
- See this blog post for taping INTELLO Plus or DB+ for dense pack cellulose installations.
- Poured Concrete, Block and Wood to Membranes: CONTEGA HF, CONTEGA Line or
- Stucco: TESCON Vana, CONTEGA FC
That's it! To simplify things further - note that TESCON Vana is capable of handling the vast majority of most typical tape needs. Often with just a roll or two of a few other tapes, a few gaskets, some primer and adhesive caulking - and you have a complete taping system to make all the connections you need. If you have any questions please don't hesitate to contact us.
One last thought: Be sure to have a handy PRESSFIX tape applicator on hand to ensure proper pressure activation of tapes.
* KAFLEX DUO was made with UNITAPE, if used on exterior, please cover with TESCON VANA for waterproof adhesion.