Summers in North Carolina can get seriously hot, but the inside of your trailer doesn’t have to. Our Lexington trailer dealership is here to help explain how to convert your enclosed trailer into a mobile workshop, toy hauler, or camper conversion, so that you can stay cool inside your trailer even during the hottest part of the year. Whether you’re on a DIY kick or you’re a small business owner looking to level up your transportation game, the team at Trailer Liquidation Direct has you covered.

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Why Should I Insulate an Enclosed Trailer?

A bare metal trailer will trap heat, so if you’re using your trailer for more than hauling cargo, chances are it’s too hot for comfort inside during the summer months. A trailer’s interior can be as much as 30°F hotter than the air outside, and high temperatures can even be harmful to sensitive electronics and other cargo. However, simply setting up an air conditioning unit isn’t going to cut it during sweltering North Carolina summers. Running AC in a trailer without insulation is like running your home air conditioner with all the windows open: all that cold air will just escape, costing you money without even keeping you cool. Whether you’re using your trailer as a mobile boutique or a weekend camper, insulating your trailer is the most efficient way to stay cool and keep your cargo protected in every season.

Our Guide to Insulating an Enclosed Trailer in NC

Keeping your trailer cool involves a three-part approach:

  • Insulation, which slows the transfer of heat
  • Ventilation, which allows heat inside to escape
  • Sealing, which stops moisture from building up

1. Trailer Insulation

Without insulation, no amount of air conditioning will keep your trailer cool. Properly insulating your trailer will prevent the transfer of heat, as well as cut down on condensation. In short, you’ll want to cover the interior surfaces of your trailer with material that will stop your trailer from absorbing heat, and keep the cool air from your AC unit inside. Typically, you’ll need to remove the plywood walls that come with your trailer and replace them with insulation. You have a few different options when it comes to insulating your trailer, including:

  • Rigid Foam Board: Foam board is the most popular choice for DIY trailer insulation. It’s lightweight, easy to cut, fits neatly between the wall studs, and resists heat flow effectively.
  • Spray Foam: This is a premium option that seals every crack and provides the best insulation, as well as dampening sound. However, it’s messy to apply and more expensive than foam board.
  • Reflective Radiant Barrier: It’s a good idea to pair a reflective radiant barrier with your foam board on the ceiling, to better reflect sunlight off the roof.

2. Ventilation

Even with great insulation, the inside of your trailer will still get hot in warm weather. To keep the interior comfortable, you need to allow hot air that rises to escape out of the trailer, which is where airflow comes into play. Trailer ventilation can be handled in a few ways:

  • Manual Roof Vent: This is the most affordable option, and involves installing trailer roof vents to let hot air out.
  • Powered Roof Vent: Electrified air vents (like MaxxAir fans) pull fresh air through the trailer and push out hot air. Power ventilation is critical if you’re working with chemicals, paints, or any kind of gas-powered equipment, as you need to be able to clear the fumes from the trailer.
  • Side Vents: Creating vents on the sides of your trailer allows air to flow through the trailer when there’s a breeze or when the trailer is in motion. Cross-ventilation keeps air moving and will help keep things cooler inside the trailer.

3. Sealing

Sealing your trailer is important because differences in temperature will cause condensation to collect in your trailer. You don’t want moisture to accumulate, as that can lead to rust and mildew in your trailer. Insulation will help prevent your trailer from “sweating” by reducing the temperature difference, and a vent will also allow damp air to escape. Properly sealing your trailer will prevent water from collecting inside and damaging your trailer.

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What is the Best Enclosed Trailer AC Setup?

Insulating your trailer will reduce the temperature inside your trailer, but air conditioning is what will keep you truly comfortable. There are two options when it comes to installing AC in your trailer:

  • Rooftop AC: A rooftop unit saves floor space and is the industry standard, but they require a reinforced roof bow, so be sure your trailer can handle one before you start this process.
  • Portable AC: A portable AC unit is more affordable, but it does take up more space in your trailer. It also requires you to cut exhaust holes in the floor or walls.

Can I Buy a Pre-Insulated Trailer?

While some people enjoy the DIY aspect of converting a trailer to suit their needs, this level of at-home work isn’t for everyone. If you’re not interested in pursuing an enclosed trailer camper conversion, NC residents can order a custom-built trailer with these features pre-installed. Our inventory of new trailers for sale includes plenty of options that may be a good fit for your needs right off our sales lot. If you can’t find the ideal match, the team at Trailer Liquidation Direct can special order custom enclosed trailers with factory-installed insulation, finished interiors, roof vents, and braced roofs ready for A/C units.

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Contact Our Trailer Dealership in North Carolina

If you have questions about converting your enclosed trailer, or you’d like to custom order an insulated trailer, just reach out to our team, or visit our trailer dealership in Lexington, North Carolina. We’ll get you started on the path to a cool and comfortable summer adventure in the perfect trailer for you.

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