---
product_id: 522367807
title: "CrawlSpace-DIY 1.5” x 100’ Butyl Sealant Tape (8 Pack) – Waterproof Butyl Rubber Repair Tape for Vapor Barriers, Windows, RV, Boat & Roof Patching"
brand: "crawl space diy"
price: "$914.57"
currency: USD
in_stock: true
reviews_count: 8
category: "Crawl Space Diy"
url: https://www.desertcart.us/products/522367807-crawlspace-diy-1-5-x-100-butyl-sealant-tape-8
store_origin: US
region: United States of America
---

# Waterproof & UV resistant – 6 months outdoor durability Temp range 0°F to 300°F – extreme weather proof 1.5” x 100’ per roll – ample coverage CrawlSpace-DIY 1.5” x 100’ Butyl Sealant Tape (8 Pack) – Waterproof Butyl Rubber Repair Tape for Vapor Barriers, Windows, RV, Boat & Roof Patching

**Brand:** crawl space diy
**Price:** $914.57
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal your space, secure your peace of mind!

## Quick Answers

- **What is this?** CrawlSpace-DIY 1.5” x 100’ Butyl Sealant Tape (8 Pack) – Waterproof Butyl Rubber Repair Tape for Vapor Barriers, Windows, RV, Boat & Roof Patching by crawl space diy
- **How much does it cost?** $914.57 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/522367807-crawlspace-diy-1-5-x-100-butyl-sealant-tape-8)

## 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

- • **Seal Like a Pro:** Double-sided butyl adhesive creates an airtight, waterproof barrier that outperforms messy caulks.
- • **Built for Extremes:** Withstands freezing cold to scorching heat, ensuring your crawl space stays dry year-round.
- • **Versatile & Reliable:** Perfect for vapor barriers, windows, RVs, boats, and roof patching – one tape, endless fixes.
- • **Effortless Application:** Flexible, thick tape conforms to rough surfaces like concrete and brick with no bubbling or peeling.
- • **Long-Lasting Protection:** UV resistant for up to 6 months, maintaining a strong seal even under harsh sunlight exposure.

## Overview

CrawlSpace-DIY 1.5” x 100’ Butyl Sealant Tape (8 Pack) is a professional-grade, double-sided waterproof tape designed for crawl space encapsulation and versatile repair tasks. It offers a robust adhesive seal that resists temperature extremes from 0°F to 300°F and UV exposure for up to six months. Ideal for sealing vapor barriers on concrete, brick, and other rough surfaces, this tape delivers a clean, durable, and weatherproof solution that outperforms traditional caulks and adhesives.

## Description

desertcart.com: CrawlSpace-DIY 1.5” x 100’ Butyl Sealant Tape (8 Pack) – Waterproof Butyl Rubber Repair Tape for Vapor Barriers, Windows, RV, Boat & Roof Patching : Industrial & Scientific

Review: Outstanding Butyl Tape for Crawl Space Projects – Seals Like a Dream! - I recently tackled a DIY crawl space encapsulation project, and this butyl tape from CrawlSpace DIY was an absolute game-changer. Right out of the box, it's clear you're getting a high-quality product – thick, flexible, and packed with that reliable butyl adhesive that pros swear by. This product it's exactly what I needed to seal vapor barriers to concrete and cinder block walls without any hassle. The tape is super easy to install: just cut to size and stick. It adheres beautifully to dry, dust-free surfaces, creating an airtight bond that gives me total peace of mind against moisture and air leaks. Pro tip from my experience: If you're working with rougher surfaces like cinder blocks, grab a heat gun and warm the tape slightly before applying. It conforms like magic, filling every little crevice for an even stronger hold. No bubbling, no peeling – just a rock-solid seal that held up perfectly through my entire project.
Review: Great quality! Super sticky. Seems perfect for crawls space columns and walls! - Great product and quick delivery! Looking forward to encapsulating my crawl space with this great waterproof double-sided tape!

## Features

- Start Your DIY Project Correctly: To undertake crawl space encapsulation, even under the best conditions, is daunting. You need the right tools and suitable materials, so to save time and trouble you need a strong double-sided tape that can stand up to the elements’ abuses and keep your crawl space dry.
- Usage: Ideal for environments with fluctuating temperatures and high moisture, specifically crawl spaces. An ideal replacement for messy caulks, this Butyl Tape is the perfect tape of choice for you when it comes to attaching vapor and moisture barriers during your crawl space encapsulation.
- Strong Sealant: Double-sided tape with great adhesive mass means the product will seal troublesome leakage and keep barriers in place to crawl space surfaces. This tape works with most adhesives and sealants and will not bleed or stain materials.
- Weather Resistant: The Butyl Tape has a temperature installation tolerance in both extreme cold (0°F) and high temperatures (300°F). Can be exposed to UV light for six months without issue.
- Additional Features: Double-sided butyl tape provides a watertight seal to unprimed surfaces such as limestone, brick, concrete, and other basement foundations. Self-seals around other fasteners or nails.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BHS7QL5G |
| Best Sellers Rank | #39,695 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #64 in Butyl Tape |
| Brand | Crawl Space DIY |
| Brand Name | Crawl Space DIY |
| Compatible Material | Cement |
| Customer Reviews | 4.6 out of 5 stars 145 Reviews |
| Item Weight | 40 Pounds |
| Manufacturer | Crawl Space DIY |
| Material | butyl |
| Material Type | butyl |
| Number of Items | 8 |
| Other Special Features of the Product | Double Sided |
| Recommended Uses For Product | Indoor |
| Size Name | 1.5" x 100' |
| Special Feature | Double Sided |
| Surface Recommendation | Brick, Concrete |
| Unit Count | 800.0 Feet |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Crawl Space DIY
- **Material:** butyl
- **Number of Items:** 8
- **Recommended Uses For Product:** Indoor
- **Special Feature:** Double Sided

## Images

![CrawlSpace-DIY 1.5” x 100’ Butyl Sealant Tape (8 Pack) – Waterproof Butyl Rubber Repair Tape for Vapor Barriers, Windows, RV, Boat & Roof Patching - Image 1](https://m.media-amazon.com/images/I/814no4IHbuL.jpg)
![CrawlSpace-DIY 1.5” x 100’ Butyl Sealant Tape (8 Pack) – Waterproof Butyl Rubber Repair Tape for Vapor Barriers, Windows, RV, Boat & Roof Patching - Image 2](https://m.media-amazon.com/images/I/71x5hXNieaL.jpg)
![CrawlSpace-DIY 1.5” x 100’ Butyl Sealant Tape (8 Pack) – Waterproof Butyl Rubber Repair Tape for Vapor Barriers, Windows, RV, Boat & Roof Patching - Image 3](https://m.media-amazon.com/images/I/61GN3kUTV9L.jpg)
![CrawlSpace-DIY 1.5” x 100’ Butyl Sealant Tape (8 Pack) – Waterproof Butyl Rubber Repair Tape for Vapor Barriers, Windows, RV, Boat & Roof Patching - Image 4](https://m.media-amazon.com/images/I/71jN7h1ofTL.jpg)
![CrawlSpace-DIY 1.5” x 100’ Butyl Sealant Tape (8 Pack) – Waterproof Butyl Rubber Repair Tape for Vapor Barriers, Windows, RV, Boat & Roof Patching - Image 5](https://m.media-amazon.com/images/I/51IVQjSm8mL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Outstanding Butyl Tape for Crawl Space Projects – Seals Like a Dream!
*by A***R on October 6, 2025*

I recently tackled a DIY crawl space encapsulation project, and this butyl tape from CrawlSpace DIY was an absolute game-changer. Right out of the box, it's clear you're getting a high-quality product – thick, flexible, and packed with that reliable butyl adhesive that pros swear by. This product it's exactly what I needed to seal vapor barriers to concrete and cinder block walls without any hassle. The tape is super easy to install: just cut to size and stick. It adheres beautifully to dry, dust-free surfaces, creating an airtight bond that gives me total peace of mind against moisture and air leaks. Pro tip from my experience: If you're working with rougher surfaces like cinder blocks, grab a heat gun and warm the tape slightly before applying. It conforms like magic, filling every little crevice for an even stronger hold. No bubbling, no peeling – just a rock-solid seal that held up perfectly through my entire project.

### ⭐⭐⭐⭐⭐ Great quality! Super sticky. Seems perfect for crawls space columns and walls!
*by K***E on March 2, 2026*

Great product and quick delivery! Looking forward to encapsulating my crawl space with this great waterproof double-sided tape!

### ⭐⭐⭐⭐⭐ Quick Shipping, Good pricing & worked well
*by S***M on February 21, 2026*

Used ths product to attached vapor barrier to a brick wall in my crawl space. Product worked well, cleaned brick with wire brush, and used seam roller to press the tape on. Applied christmas tree fasteners through vapor barrier and tape. Initially shipping was showing a week, but recieved within 2 days. Bought this product because of lack of other tapes that were smaller than 1.5'' And 2'' tape from other distributors were quite a bit more expensive.

---

## 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.us/products/522367807-crawlspace-diy-1-5-x-100-butyl-sealant-tape-8](https://www.desertcart.us/products/522367807-crawlspace-diy-1-5-x-100-butyl-sealant-tape-8)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-16*