Crawl Space Ninja® Foundation Butyl Tape - Butyl Tape 1.5"x75'

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Product Overview

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  • 1.5-inch Wide x 75-feet Long 
  • Black 2-sided
  • Qty - 1 Roll
  • Made in U.S.A
  • Adheres best in 60°-78°F
  • Do not store in areas above 78°F - adhesive can melt
  • If product arrives hot, place in freezer for at least 30 min.

Foundation Butyl Tape DIY Description:

Crawl Space Ninja DIY Foundation Butyl Tape is a reinforced butyl tape coated on both sides with an aggressive rubber based adhesive system specifically designed to compete with Butyl Rubber in applications that
require very high tack, peel, and sealing properties.

Foundation Butyl Tape Applications:

Crawl Space Ninja DIY Foundation Butyl Tape provides excellent adhesion and sealing to a wide range of surfaces and conditions including: porous, low energy, cold, and damp surfaces.

  • Great for field seaming and repair of polyethylene and polypropylene film/panel.
  • Excellent adhesion to concrete walls, galvanized aluminum, plywood, oriented strand board, wafer-board, and pink foam insulation sheet.
  • Sealing between glass, metal, wood and many plastics.
  • Click Here to download specification sheet.

FAQ: How Much Foundation Butyl Tape Do I Need?

First you need to take a measurement to get the linear feet of your crawl space's perimeter. For example, if you have a crawl space that is 50 feet long and 20 feet wide (1000 square feet) we simply add the measurements of each wall to get your total perimeter linear feet. 50 feet + 20 feet + 50 feet + 20 feet = 140 total linear feet. That's how much butyl tape you'll need. Since each roll is 75 feet, you would need 2 rolls! This will meet your 140 feet requirement. You may also want to calculate pillars.


Product Videos


(10 reviews) Write a Review

10 Reviews Hide Reviews Show Reviews

  • 5
    Butyl Tape

    Posted by Energy Nerds on May 9th 2022

    Works awesome! It stuck strong to an old dirty block wall and held up my poly just the way I imagined.

  • 5

    Posted by Jason Christian on Mar 12th 2022

    Was easy to use and made hanging of the plastic on the walls a breeze!

  • 5

    Posted by Todd A Breen on Mar 8th 2022

    great product and works exactly as described.

  • 5
    Butyl tape

    Posted by Jim on Oct 17th 2021

    This is very sticky stuff, just be sure the surface you are applying it to is clean and dust free.

  • 5
    Foundation Butyl Tape

    Posted by Sharon Bartlett on Aug 31st 2021

    Excellent tape, works great but don't let it get stuck to the wrong part of the plastic because the tape is stronger than the 12 mil I am using so I had a couple of holes to patch... the joys of first time users.

  • 4
    Foundation Butyl Tape 1.5x75

    Posted by Anthony L Bowers on May 5th 2021

    Have went through a lot of rolls and some has been in place for over 6 months. Overall a good product, but would like it to be 2 inches wide. It is extremely sticky. Is used to hold plastic sheeting to wall, but will come loose unless helped with clips. Not the tape's fault, but it will come loose from around pillars where gavity isn't pulling the sheeting down. So, although it is extremely sticky it doesn't quite adhere strongly enough over time.

  • 4
    Worked well

    Posted by Andryar on Feb 2nd 2021

    This tape only secured about 75% of my job because it's very sensitive to moisture. Nothing will stick to wet walls, so be sure to use fasteners too! The vapor barrier side of the tape worked perfectly.

  • 5
    Very good product

    Posted by Craig Ryan on Jan 25th 2021

    I went around my entire crawl space using this tape alone to hold my vapor barrier in place. Held great until I went back to put in mechanical fasteners. Easy to handle, sticks great.

  • 4
    Butyl Tape

    Posted by Chad Janssen on Jan 3rd 2021

    This is a must have when applying the vapor barrier - a clean and dry surface is needed to apply it to the foundations or wall