Ethan Clarke
Laying plastic in a crawl space is a great way to prevent moisture, mould, and mildew from affecting your home's structure. Homeowners often install plastic in crawl spaces to create a barrier against moisture or vapour and to create more usable storage space. The process involves measuring the crawl space, clearing debris, and laying down plastic sheeting, which can range from 6' to 40' in width and come in rolls up to 200' long. The plastic sheeting is then secured using landscape fabric stakes and duct tape. While a 6-mil thickness is commonly recommended, thicker grades of 10-mil or 20-mil provide enhanced durability and moisture resistance. This simple and inexpensive DIY project can help avoid costly repairs to your home by protecting its foundation from water damage.
| Characteristics | Values |
|---|---|
| Purpose | Creating a barrier against moisture or vapour, preventing mould or mildew, and creating more usable storage space |
| Tools required | Straightedge, tape measure, landscape fabric stakes, hammer, utility knife, duct tape, carpet knife, rubber mallet |
| Plastic type | Polyethylene plastic sheeting (poly), thickness of 6-mil or thicker (10-mil or 20-mil recommended for durability and moisture resistance) |
| Installation process | Measure crawl space, cut and lay plastic sheeting, overlap seams and tape, stake down into soil, seal with duct tape, form a tight seal with foundation wall, optional: cap with concrete |
| Maintenance | Vapor barriers need replacement every 5-10 years as they deteriorate; additional solutions like spray foam insulation, dehumidifiers, or mould remediation may be needed |
Explore related products
What You'll Learn
Measure crawl space
Measuring your crawl space is an important step in preparing to lay plastic sheeting. First, you'll need to determine the size and shape of the area. This will help you decide how much plastic sheeting you'll need to purchase.
To start, grab a tape measure and measure the length and width of the crawl space. Multiply these two numbers to get the square footage of the area. It's a good idea to measure at multiple points, as crawl spaces may not be perfectly rectangular. If your crawl space is an unusual shape, you may need to divide it into sections and calculate the square footage of each section separately.
Next, you'll want to measure the height of the crawl space. This will help you determine if you need to duck or crawl, and it will also give you an idea of how much plastic sheeting you'll need in terms of length. If your crawl space has varying heights, take measurements at several points to get an average height.
While measuring, keep in mind that you'll want to overlap the plastic sheeting by a few inches when laying it down, so you may need to account for this in your calculations. Additionally, if you plan to tape or staple the plastic sheeting to the walls or foundation, you'll need to ensure you have enough material to do so.
Finally, consider any obstacles or unique features in your crawl space that may impact the amount of plastic sheeting you need. For example, if you have pipes or ductwork running through the area, you'll need to account for this in your measurements.
Once you have accurate measurements of your crawl space, you can proceed to purchase the right amount and type of plastic sheeting for your project.
Adhesive Use on Plastic Layer Breastforms: A Guide
You may want to see also
Explore related products
Choose correct plastic sheeting
Plastic sheeting in your crawl space can serve several purposes, including creating a barrier against moisture or vapour, controlling humidity, and protecting your home and occupants from radon infiltration. The right type of plastic sheeting for your crawl space depends on your specific needs, budget, and the conditions of your crawl space.
The effectiveness of a vapour barrier is often measured in terms of its thickness and perm rating. The thickness of a vapour barrier is measured in mils, where 1 mil is equal to 0.001 inches. Common thicknesses include 6 mil, 10 mil, 12 mil, and 20 mil. A thicker vapour barrier tends to be more durable and resistant to punctures and tears. For instance, while 6 mil plastic sheeting may be suitable for a basic level of moisture protection, a 12 mil or 20 mil barrier would offer superior protection. The perm rating, on the other hand, determines how much water vapour can pass through the material.
When choosing the correct plastic sheeting, it is important to consider the specific conditions of your crawl space. For example, if your crawl space has a floor made of rocks, roots, or concrete chunks, a thicker grade of material may be necessary. In most cases, a minimum thickness of 12 mils is recommended for crawl space vapour barriers. However, if your crawl space is not exposed to heavy traffic or substantial wear and tear, a thinner option such as 10 mil plastic sheeting may provide adequate protection against moisture.
Additionally, it is important to consider the type of plastic sheeting that best suits your needs. Polyethylene plastic sheeting is a popular choice due to its durability, waterproof qualities, and resistance to mould and mildew. Reinforced polyethylene is an upgraded version with added strength to prevent tears or punctures, making it suitable for high-performance demands. Other options include Pro Crawl™ Anti-Mold Vapor Barrier, which offers 10 mil thickness and built-in mould prevention, and Dura Skrim® Reinforced Plastic Sheeting, which provides multi-layer reinforcement for demanding applications.
How Plastic on Windows Helps Keep the Cold Out
You may want to see also
Explore related products
Prepare crawl space
Preparing your crawl space is a critical step in ensuring the success of your plastic installation. Here is a detailed guide to help you prepare your crawl space effectively:
Clear the Space
Start by clearing any debris, trash, or failing insulation from the crawl space floor. This step ensures you have a clean and unobstructed work area. It is important to create a safe and comfortable environment, especially if you plan to spend time working in the crawl space. Sweep away any dirt or dust and remove any items that may hinder your movement or the installation process.
Inspect for Moisture Issues
Before installing the plastic vapour barrier, it is crucial to address any moisture issues in your crawl space. Check for leaking pipes, damaged roofs, or walls that may be causing water to pool up. Fix any plumbing issues, and if your crawl space experiences heavy flooding during rainy seasons due to sump pump issues, consider more robust waterproofing solutions. Remember, a vapour barrier alone will not fix major water problems.
Measure the Crawl Space
Accurate measurements of your crawl space are essential before purchasing your plastic sheeting. Measure the length and width of the area to determine the required quantity of plastic sheeting. Crawl spaces vary in size, so ensure you buy plastic sheeting that is sufficient to cover the entire floor area.
Choose the Right Plastic Sheeting
Selecting the appropriate plastic sheeting is vital. Polyethylene plastic sheeting is a popular choice for moisture abatement and storage protection. Consider the thickness of the sheeting, with options typically ranging from 6-mil to 20-mil or even 23-mil. Thicker grades are more durable and provide enhanced moisture resistance, while thinner sheeting may not be as effective in preventing vapour or moisture infiltration.
Gather the Necessary Tools
Ensure you have all the required tools for installation before beginning the project. You will need a straightedge, tape measure, landscape fabric stakes, a hammer or rubber mallet, duct tape, and a utility or carpet knife. Having all the necessary tools on hand will make the installation process smoother and more efficient.
The Art of Bending ABS Plastic: Techniques and Tricks
You may want to see also
Explore related products
Lay plastic sheeting
Laying plastic sheeting in a crawl space is a great way to prevent moisture and water vapour from seeping into your home. It also helps to create more usable storage space. Before laying plastic sheeting, it is important to measure your crawl space and purchase the appropriate amount of plastic sheeting. The thickness of the plastic sheeting is also important, with thinner sheeting being more pliable but less effective as a barrier against moisture. Experts recommend using sheeting that is either 10-mil or 20-mil for enhanced durability and moisture resistance.
Once you have the correct amount of plastic sheeting, you can begin to lay it down in your crawl space. Start by clearing any debris or trash from the area. Then, unroll the plastic sheeting and lay it out evenly, ensuring that it is tight and secure. Use a rock or a heavy object to weigh down the corners of the plastic sheeting to prevent it from rolling up. If you are using multiple pieces of plastic sheeting, overlap the seams by a few feet and seal them with duct tape.
To secure the plastic sheeting to the soil, use landscape fabric stakes and hammer them down into the ground around the edges. You can also use a pressure-treated nailing strip to secure the plastic sheeting to the foundation wall. For added protection, you can pour a layer of concrete over the plastic sheeting. This will protect it from damage and allow you to access the area without fear of puncturing the plastic.
It is important to note that a vapor barrier is not a one-time solution and will need to be replaced every 5-10 years as it deteriorates over time. Regularly inspecting your vapor barrier for any signs of damage is crucial to ensure its effectiveness.
Facing Frame Plastic Eyeglasses: A Simple Guide
You may want to see also
Explore related products
Seal and secure
Sealing and securing your crawl space with plastic sheeting is a great way to prevent moisture and vapour from seeping into your home. It's important to choose the right type of plastic sheeting and to install it correctly.
Firstly, ensure your crawl space is free of debris and any trash or failing insulation. Measure the length and width of your crawl space to ensure you have enough plastic sheeting. The thickness of the plastic sheeting is important, with thinner sheeting being more pliable but less effective as a barrier. A minimum thickness of 6-mil is recommended, with thicker grades of 10-mil or 20-mil providing enhanced durability and moisture resistance.
Once you have the correct amount of plastic sheeting, cut and lay down strips, ensuring that the seams overlap by at least two feet. Use duct tape to seal the seams together. If you are using multiple pieces of plastic, it is recommended to cut a large piece that can be rolled out, staking the edges as you go. Use landscape fabric stakes and a hammer to secure the plastic sheeting to the soil around the edges.
To create a tight seal, use construction adhesive to secure the plastic to the foundation wall. You can also use a pressure-treated nailing strip to ensure a secure fit. For added protection, you can pour a layer of concrete over the plastic sheeting, which will protect it from damage and allow access to the area without fear of puncturing the plastic.
By following these steps, you can effectively seal and secure your crawl space with plastic sheeting, creating a barrier against moisture and vapour intrusion.
Plastic Pollution: Killing Florida's Marine Life
You may want to see also
Frequently asked questions
Plastic sheeting in your crawl space can serve a number of useful purposes. Primarily, it acts as a barrier against moisture or vapour, helping to minimise the risk of mould or mildew in your home. It can also create more usable storage space.
You will need a straightedge, tape measure, landscape fabric stakes, a hammer, utility knife and duct tape. You may also need construction adhesive and concrete.
Polyethylene plastic sheeting is the best choice for moisture abatement and storage protection. While some sources recommend a thickness of 6-mil, a thicker grade of material is preferable. Experts recommend sheeting that's either 10-mil or 20-mil for enhanced durability and moisture resistance.
