---
product_id: 378214422
title: "CrawlSpace-DIY Vapor Barrier Tape 4” x 180’ – Heavy Duty White Polyethylene Seam Tape for Crawl Space & Basement Encapsulation, Moisture Barrier Seal for Plastic Sheeting & Underlayment"
brand: "crawl space diy"
price: "$92"
currency: NZD
in_stock: true
reviews_count: 9
category: "Crawl Space Diy"
url: https://www.desertcart.nz/products/378214422-crawlspace-diy-vapor-barrier-tape-4-x-180-heavy-duty
store_origin: NZ
region: New Zealand
---

# 4-inch wide for max coverage Bonds perfectly to poly sheeting Heavy-duty waterproof seal CrawlSpace-DIY Vapor Barrier Tape 4” x 180’ – Heavy Duty White Polyethylene Seam Tape for Crawl Space & Basement Encapsulation, Moisture Barrier Seal for Plastic Sheeting & Underlayment

**Brand:** crawl space diy
**Price:** $92
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal smart, seal strong — your crawl space’s best defense!

## Quick Answers

- **What is this?** CrawlSpace-DIY Vapor Barrier Tape 4” x 180’ – Heavy Duty White Polyethylene Seam Tape for Crawl Space & Basement Encapsulation, Moisture Barrier Seal for Plastic Sheeting & Underlayment by crawl space diy
- **How much does it cost?** $92 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/378214422-crawlspace-diy-vapor-barrier-tape-4-x-180-heavy-duty)

## Best For

- crawl space diy enthusiasts

## Why This Product

- Trusted crawl space diy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **DIY Confidence Booster:** Strong adhesive grips plastic sheeting instantly—no slipping, no fuss, just secure seals.
- • **Built to Seal & Protect:** Heavy-duty polyethylene backing locks out moisture and air, ensuring lasting encapsulation.
- • **Long Roll, Big Projects:** 180 feet of tape means you’re ready for large-scale encapsulation or multiple repairs without running out.
- • **Max Coverage, Minimal Effort:** Wide 4” tape spans uneven seams for flawless, mess-free application every time.
- • **Seamless Professional Finish:** Clean white tape blends with vapor barriers for a polished, easy-to-inspect installation.

## Overview

CrawlSpace-DIY Vapor Barrier Tape is a 4-inch wide, 180-foot long heavy-duty polyethylene tape designed to create airtight, waterproof seals in crawl space and basement encapsulation projects. Its strong adhesive bonds seamlessly to plastic sheeting and underlayment, blocking moisture and air leaks while providing a clean, professional white finish for easy inspection and long-lasting protection.

## Description

CrawlSpace-DIY Vapor Barrier Tape 4” x 180’ – Heavy Duty White Polyethylene Seam Tape for Crawl Space & Basement Encapsulation, Moisture Barrier Seal for Plastic Sheeting & Underlayment: desertcart.com: Tools & Home Improvement

Review: Excellent Seam Tape for Vapor Barrier Joins – Flawless Seals Every Time! - This isn't just any tape. The quality is immediately noticeable – it's a premium polyethylene-backed tape with a strong, aggressive adhesive that bonds seamlessly to plastic sheeting. The 4-inch width effortlessly covers overlaps, for precise, mess-free application in tight spaces, creating waterproof joints that lock out moisture and air infiltration. Aesthetically, the white hue matched my plastic sheeting perfectly, creating seamless, professional-looking bonds that elevate the whole setup from DIY to polished. While it is too soon to speak about its durability, you can tell it's built to last a long time. This tape paired perfectly with the butyl tape from the same seller - two indispensable essentials that brought my DIY crawl space encapsulation project to a seamless finish.
Review: Vapor barrier tape - The tape is as described and works as described. Really happy with adhesion and the edges made super easy for tearing with hands which makes work with it quicker to. Great product

## Features

- STRONG SEAM SEAL FOR ENCAPSULATION — Heavy-duty vapor barrier seam tape helps create a continuous moisture barrier by sealing overlaps, seams, and penetrations in crawl space and basement encapsulation systems.
- 4” WIDE x 180’ LONG FOR MAX COVERAGE — Wider 4-inch tape bridges uneven seams and provides more bonding surface; 180 foot long gives you plenty of tape for large installs and multiple repairs.
- BONDS TO POLY SHEETING & UNDERLAYMENT — Designed for use on polyethylene vapor barriers and liners; ideal for sealing joints in crawl space plastic sheeting, underlayment, and ground barriers.
- HELPS BLOCK MOISTURE & AIR LEAKS — Creates a tight seal to reduce moisture intrusion and help prevent humid air movement at seam lines, improving overall encapsulation performance.
- CLEAN, PROFESSIONAL WHITE FINISH — White tape blends well with white vapor barriers for a neat, high-visibility install that’s easy to inspect during service checks and maintenance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B095C1JLJT |
| Adhesive Format | pressure-sensitive |
| Adhesive Location | back |
| Adhesive Side Count | 1 |
| Best Sellers Rank | #5,322 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #64 in Duct Tape |
| Brand | Crawl Space DIY |
| Color | white |
| Compatible Material | Alloy Steel, Concrete, Metal, Plastic, Wood |
| Date First Available | May 17, 2021 |
| Foil Thickness | 12 Mils |
| Item Resistance | waterproof |
| Item Thickness | 12 Mils |
| Item Weight | 2.51 pounds |
| Item model number | STAPE |
| Manufacturer | Crawl Space DIY |
| Material | Polyethylene |
| Number of Items | 1 |
| Product Dimensions | 2160"L x 4"W x 4"Th |
| Size | 4" x 180' |
| Special Feature | Strong, Uv-Resistant, Waterproof |
| Surface Recommendation | Plastic |
| UPC | 850031818026 |
| Unit Count | 180.0 Feet |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Crawl Space DIY
- **Color:** white
- **Material:** Polyethylene
- **Number of Items:** 1
- **Special Feature:** Strong, Uv-Resistant, Waterproof

## Images

![CrawlSpace-DIY Vapor Barrier Tape 4” x 180’ – Heavy Duty White Polyethylene Seam Tape for Crawl Space & Basement Encapsulation, Moisture Barrier Seal for Plastic Sheeting & Underlayment - Image 1](https://m.media-amazon.com/images/I/510gAyUiqPL.jpg)

## Available Options

This product comes in different **Number Of Items** options.

## Questions & Answers

**Q: Will this work with husky 10 mil poly vapor barrier?  also does it hold up over time?  crawl space encapsulation project ...**
A: I used it for crawlspace encapsulation.  Very strong and stuck well.  I used 12mil poly.  I cannot speak to how well it holds up over time as I recently just completed the project

**Q: Will this work on sealing osb exterior seams?**
A: I would say no

**Q: Could I effectively seal this against a concrete crack using PU (or other) caulk/sealant?**
A: I don't think it would seal/stick to the concrete.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent Seam Tape for Vapor Barrier Joins – Flawless Seals Every Time!
*by A***R on October 6, 2025*

This isn't just any tape. The quality is immediately noticeable – it's a premium polyethylene-backed tape with a strong, aggressive adhesive that bonds seamlessly to plastic sheeting. The 4-inch width effortlessly covers overlaps, for precise, mess-free application in tight spaces, creating waterproof joints that lock out moisture and air infiltration. Aesthetically, the white hue matched my plastic sheeting perfectly, creating seamless, professional-looking bonds that elevate the whole setup from DIY to polished. While it is too soon to speak about its durability, you can tell it's built to last a long time. This tape paired perfectly with the butyl tape from the same seller - two indispensable essentials that brought my DIY crawl space encapsulation project to a seamless finish.

### ⭐⭐⭐⭐⭐ Vapor barrier tape
*by C***A on January 23, 2026*

The tape is as described and works as described. Really happy with adhesion and the edges made super easy for tearing with hands which makes work with it quicker to. Great product

### ⭐⭐⭐⭐⭐ This 12 mil tape works great!
*by G***K on January 17, 2026*

This tape is great. I have bought 5 rolls of this tape and it sticks to plastic excellent. It cuts easy with a knife or razor blade. Great for crawl spaces and high ceilings in pole barns where plastic needs to be secured. Great value for the money. I purchased a roll of white tape from another vendor and it would not stick to the plastic lime this one does so I returned it.

## Frequently Bought Together

- CrawlSpace-DIY - Vapor Barrier Tape, 4" x 180' PE 12mm Polyethylene Tape, Moisture Barrier Seal and Seam, Insulation Tape for Crawl Space Vapor Barrier, Marine & More
- Spirecover Crawl Space Vapor Barrier, 10 mil 10'x100', Thick Plastic Sheeting, Drop Cloth Vapor Barrier Covering for Crawl Space Encapsulation, Heavy Duty Plastic sheeting, Black and White Panda Film
- Crawl Space Vapor Barrier Foundation Seal Tape, 1.5" x 108' Roll, Double Sided Tape, Made in The USA

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nz/products/378214422-crawlspace-diy-vapor-barrier-tape-4-x-180-heavy-duty](https://www.desertcart.nz/products/378214422-crawlspace-diy-vapor-barrier-tape-4-x-180-heavy-duty)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-11*