Crawlspace Waterproofing – Tips for Repairing Old Crawlspace Butyl Tape Wyoming, MI
Are you having your crawlspace vapor barrier replaced? Are you having your crawlspace waterproofing system repaired? You may be wondering whether the butyl tape previously used in your crawlspace can be reused or whether it should be replaced. Below, we discuss what should be done to the old rubberized tape in your crawlspace.
What is this Butyl Tape Used for in Crawlspace Waterproofing?
Butyl tape is quite common in the construction industry. There are different types of tapes available. They are used in HVAC installation, roofing as well as in crawlspace waterproofing. They are rubberized tape with adhesive. Some of the most common uses of this tape include:
- Repairing roofs
- Sealing air and connecting ductwork in HVAC systems
- Repairing RVs and other types of mobile homes
- Connecting glass to window frames
- Repairing cars
- Repairing decks
Crawlspace butyl tape is a two-sided rubberized tape that shouldn’t be confused with the waterproof seam tape used for connecting the seams in a vapor barrier. The one-sided waterproof seam tape can only connect the plastic sheets of the vapor barrier. However, rubberized butyl tape is used to connect the plastic sheet to concrete or metal.
Butyl tape is a great solution when encapsulating crawlspaces during crawlspace waterproofing. It is the ideal method of connecting the vapor barrier to the concrete foundation. It provides a long-lasting seal. In fact, many waterproofing contractors use this as the primary anchor when installing a vapor barrier in a crawlspace.
However, this doesn’t mean it lasts forever. The bond between the butyl ape and the foundation wall will weaken over time. It is therefore recommended that you use this fastener with another supporting buckle. However, if your foundation has old butyl tape whose seal has become weak, you may be wondering how to restore the seal and keep your crawlspace dry. Below are some tips to help you repair old crawlspace butyl tape.
Tips for Repairing Old Crawlspace Butyl Tape
1. Have the crawlspace inspected
Whenever repair has to be done to your crawlspace it is a good opportunity to have the crawlspace inspected. Seek the services of a professional crawlspace waterproofing contractor and have your property inspected. The inspection can help reveal problems in the crawlspace or potential problems that you should resolve in order to protect your property.
2. All damaged tape should be removed
It is important that the damaged tape be removed. Old butyl tape cannot be reused. Leaving the old butyl tape on will compromise the seal in your crawlspace.
3. Have new tape applied
Has new butyl tape been applied to replace the old tape? While butyl tape is an effective fastener, it is recommended that you use an additional anchor to improve the longevity of the seal. An experienced crawlspace waterproofing contractor can help you replace the tape and add a more permanent anchor to ensure long-term results.
Crawlspace Butyl tape is a vital component in a waterproofing system. Be sure to have an experienced professional replace old butyl tape for you.

