The main difference between red and blue Tuck Tape goes beyond their obvious color distinction. These specialized construction tapes serve different purposes based on their adhesive properties and intended applications:
Here is what to look for when choosing between them when you need a tape for crawl space vapor barrier.
The primary factor that separates these tapes is their “stickiness factor.” Blue Tuck Tape has an adhesive formulation optimized to bond with polyethylene vapor barriers in interior conditions. Red Tuck Tape features a more aggressive adhesive that can withstand exterior temperature fluctuations and moisture exposure.
There’s typically a price difference of about $3 per roll between the two varieties, with red tape generally being more expensive due to its more robust adhesive formulation for exterior applications.
Blue Tuck Tape is the correct choice when:
Red Tuck Tape should be your selection when:
Regardless of which tape you choose, proper application techniques remain similar:
Using the wrong tape for your application can lead to seal failure. Red tape used indoors may be unnecessarily expensive, while blue tape used outdoors may fail prematurely due to weather exposure. Always match the tape to its intended environment for best performance and longevity.
By selecting the appropriate Tuck Tape for your vapor barrier project, you’ll ensure a proper moisture seal that performs as intended for years to come.
Once you’ve selected the appropriate colored tape for your vapor barrier, proper installation is crucial for creating an effective moisture seal. Learn step-by-step techniques for applying tape to different surfaces in our comprehensive guide: Crawl Space Vapor Barrier Tape Installation
Different colored tapes may be needed in varying amounts depending on your project’s specific requirements. Calculate exactly how much of each type you’ll need based on your crawl space measurements with our detailed calculator guide: How Much Tape to Buy for Vapor Barrier Installation