Firewood Tarp Guide For Wood Piles (Expert Tips For Moisture Control)

The dance of firewood preparation is a timeless tradition, connecting us to generations past who relied on the warmth of a wood fire. Mastering the art of drying and storing firewood is crucial, and the humble tarp plays a starring role. This guide isn’t just about throwing a plastic sheet over a woodpile; it’s about understanding the science of moisture control, the best tarping techniques, and how to protect your investment in seasoned firewood for years to come.

Firewood Tarp Guide for Wood Piles: Expert Tips for Moisture Control

I’ve spent years splitting, stacking, and seasoning firewood, and I’ve learned firsthand the importance of proper tarping. I’ve seen meticulously stacked piles turn to moldering messes because of poor tarping, and I’ve also witnessed the satisfaction of burning perfectly seasoned wood thanks to a well-protected stack. This guide shares my experiences, along with practical tips and expert advice, to help you master the art of firewood tarping.

Understanding the Importance of Moisture Control

Moisture is the enemy of good firewood. Green wood, freshly cut, can have a moisture content of 50% or higher. Burning green wood is inefficient, produces excessive smoke, and can contribute to creosote buildup in your chimney, increasing the risk of chimney fires. Seasoned firewood, on the other hand, has a moisture content of 20% or less and burns cleanly and efficiently.

Why Dry Firewood Matters: Burning dry firewood releases more heat, reduces smoke, and minimizes creosote buildup.
The Drying Process: Seasoning involves allowing moisture to evaporate from the wood. This process is influenced by factors like wood type, climate, and stacking method.
Tarping’s Role: A properly placed tarp protects the wood from rain and snow while still allowing for adequate airflow.

Choosing the Right Tarp

Not all tarps are created equal. Selecting the right tarp for your firewood pile is crucial for effective moisture control. Consider these factors:

Material:
- Polyethylene (Poly) Tarps: These are the most common and affordable option. They are lightweight, waterproof, and readily available. However, they are prone to tearing and degradation from UV exposure.
  - Thickness: Look for a minimum thickness of 6 mil (thousandths of an inch). Heavier-duty tarps (10-12 mil) will last longer.
  - Color: Silver or white tarps reflect sunlight and can help reduce heat buildup under the tarp. Dark-colored tarps absorb heat, which can be beneficial in cooler climates but can also lead to condensation.
- Canvas Tarps: Canvas tarps are more breathable than poly tarps, allowing for better airflow. However, they are also more expensive and require regular treatment to maintain their water resistance.
- Vinyl Tarps: Vinyl tarps are extremely durable and waterproof but are also the most expensive option. They are often used for commercial applications.
Size: The tarp should be large enough to cover the top of the woodpile completely with some overhang on the sides. I recommend adding at least 1 foot of overhang on each side.
- Calculating Tarp Size: Measure the length and width of your woodpile. Add 2 feet to each dimension to determine the minimum tarp size. For example, a woodpile that is 8 feet long and 4 feet wide would require a tarp that is at least 10 feet long and 6 feet wide.
Durability: Look for tarps with reinforced corners and grommets. Grommets should be spaced no more than 2-3 feet apart.
UV Resistance: Choose a tarp that is UV resistant to prevent it from breaking down in the sun.

My Recommendation: For most homeowners, a heavy-duty polyethylene tarp is the best choice. They are affordable, readily available, and provide adequate protection when properly installed.

Tarping Techniques: The Right Way to Cover Your Woodpile

The way you tarp your woodpile is just as important as the tarp itself. Here’s a step-by-step guide to proper tarping techniques:

Prepare the Woodpile:
- Stacking Method: Stack your firewood in rows, leaving gaps between the rows for airflow. I prefer a simple linear stack, but you can also use a circular or U-shaped stack.
- Base:* Elevate the woodpile off the ground using pallets, cinder blocks, or scrap wood. This will prevent moisture from wicking up into the wood. Aim for at least 4 inches of clearance.
- Leveling: Ensure the top of the woodpile is relatively level. This will prevent water from pooling on the tarp.
Position the Tarp:
- Overhang: Position the tarp so that it covers the top of the woodpile completely and extends down the sides by at least 1 foot.
- Slope: Create a slight slope in the tarp to allow water to run off easily. You can achieve this by placing a few pieces of wood on top of the pile before covering it.
Secure the Tarp:
- Grommets: Use bungee cords or rope to secure the tarp to the ground or to the woodpile itself.
- Tension: Tighten the bungee cords or rope to create a snug fit. Avoid over-tightening, which can tear the tarp.
- Anchoring: Use stakes or weights to anchor the tarp to the ground, especially in windy areas. I often use old bricks or concrete blocks.
Ventilation:
- Exposed Sides: Leave the sides of the woodpile exposed to allow for airflow. This is crucial for drying the wood.
- Partial Covering: Only cover the top third of the woodpile. This will protect it from rain and snow while allowing for maximum ventilation.

My Tarping Method: I prefer to cover only the top of my woodpiles, leaving the sides completely open. This allows for excellent airflow and prevents moisture buildup. I use bungee cords to secure the tarp to the woodpile, ensuring a snug fit.

Advanced Tarping Strategies for Different Climates

The best tarping strategy will vary depending on your climate. Here are some tips for different regions:

Humid Climates: In humid climates, ventilation is key. Leave the sides of the woodpile completely open and consider using a breathable canvas tarp.
Rainy Climates: In rainy climates, ensure the tarp is securely fastened and that there is adequate slope to allow water to run off. Consider using a heavier-duty tarp.
Snowy Climates: In snowy climates, be sure to remove snow from the tarp regularly to prevent it from collapsing under the weight.
Dry Climates: In dry climates, you may not need to tarp your firewood at all. However, a tarp can still help protect the wood from sun damage and prevent it from drying out too quickly.

Case Study: My Experience in the Pacific Northwest: I live in the Pacific Northwest, where it rains frequently. I’ve found that covering only the top of my woodpiles and using a heavy-duty polyethylene tarp works best. I also make sure to elevate the woodpiles off the ground to prevent moisture from wicking up.

Troubleshooting Common Tarping Problems

Even with the best tarping techniques, you may encounter problems. Here are some common issues and how to address them:

Tarp Tears: If your tarp tears, repair it with duct tape or replace it.
Grommet Failure: If a grommet pulls out, reinforce the area with duct tape or use a grommet repair kit.
Condensation: If you notice condensation under the tarp, increase ventilation by lifting the edges of the tarp or using a breathable tarp.
Mold or Mildew: If you see mold or mildew on the wood, remove the affected pieces and allow the remaining wood to dry thoroughly.

My Tip: Regularly inspect your tarp for tears, grommet failure, and condensation. Address any problems promptly to prevent further damage.

Alternative Firewood Storage Solutions

While tarps are a cost-effective solution, other options exist for storing firewood:

Firewood Sheds: A firewood shed provides excellent protection from the elements and allows for good ventilation.
Firewood Racks: Firewood racks elevate the wood off the ground and keep it organized.
Covered Porches: A covered porch can provide adequate protection from rain and snow.

My Opinion: A simple firewood shed is the ideal solution for long-term storage. It protects the wood from the elements while allowing for excellent ventilation. However, a tarp is a great option for those on a budget or with limited space.

Measuring Moisture Content: Knowing When Your Firewood is Ready

The ultimate test of seasoned firewood is its moisture content. A moisture meter is an essential tool for determining when your firewood is ready to burn.

Target Moisture Content: Aim for a moisture content of 20% or less.
Using a Moisture Meter: Insert the probes of the moisture meter into a freshly split piece of wood. Take readings from several pieces of wood in different parts of the pile.
Interpreting Readings: If the moisture content is above 20%, continue seasoning the wood and recheck it periodically.

My Method: I use a moisture meter to check the moisture content of my firewood before bringing it into the house. This ensures that I am burning only seasoned wood.

Wood Species and Drying Times

Different wood species have different drying times. Hardwoods, such as oak and maple, take longer to season than softwoods, such as pine and fir.

Hardwoods: Typically require 6-12 months of seasoning.
Softwoods: Typically require 3-6 months of seasoning.

My Observation: Oak is notoriously slow to dry. I’ve found that it can take up to two years to season properly in my climate.

Safety Considerations When Handling Firewood

Handling firewood can be dangerous. Here are some safety precautions to take:

Wear Gloves: Protect your hands from splinters and cuts.
Wear Safety Glasses: Protect your eyes from flying debris.
Lift Properly: Lift with your legs, not your back.
Use a Log Splitter: Consider using a log splitter to reduce the risk of injury.
Be Aware of Your Surroundings: Watch out for uneven terrain and obstacles.

My Advice: Always prioritize safety when handling firewood. A little caution can prevent serious injuries.

Maintaining Your Firewood Storage Area

A well-maintained firewood storage area will help ensure that your firewood stays dry and pest-free.

Clear Debris: Remove any debris from around the woodpile regularly.
Control Pests: Inspect the woodpile for signs of pests, such as termites or carpenter ants. Take appropriate measures to control any infestations.
Rotate Stock: Rotate your firewood stock to ensure that the oldest wood is burned first.

My Practice: I regularly clear debris from around my woodpiles and inspect them for signs of pests. I also rotate my stock to ensure that the oldest wood is burned first.

The Economics of Seasoned Firewood

Seasoning your own firewood can save you money compared to buying pre-seasoned wood.

Cost Comparison: Compare the cost of green wood to the cost of seasoned wood in your area.
Time Investment: Consider the time and effort required to season your own firewood.
Equipment Costs: Factor in the cost of a chainsaw, log splitter, and other equipment.

My Calculation: I estimate that I save several hundred dollars each year by seasoning my own firewood.

Firewood Tarping Checklist: Ensuring Success

Use this checklist to ensure that you are properly tarping your firewood:

[ ] Choose the right tarp for your climate and needs.
[ ] Prepare the woodpile by stacking it properly and elevating it off the ground.
[ ] Position the tarp so that it covers the top of the woodpile completely and extends down the sides by at least 1 foot.
[ ] Secure the tarp with bungee cords or rope.
[ ] Ensure adequate ventilation by leaving the sides of the woodpile exposed.
[ ] Inspect the tarp regularly for tears, grommet failure, and condensation.
[ ] Measure the moisture content of the wood before burning it.

Conclusion: The Art of Firewood Preservation

Mastering the art of firewood tarping is essential for anyone who relies on wood for heat. By understanding the principles of moisture control, choosing the right tarp, and following proper tarping techniques, you can protect your investment in seasoned firewood and enjoy the warmth of a clean-burning fire all winter long. Remember, the goal is to strike a balance between protecting your wood from the elements and allowing it to breathe and dry properly. With a little attention and effort, you can ensure that your firewood is always ready when you need it.

Firewood Tarp Guide for Wood Piles (Expert Tips for Moisture Control)