Insulation is a key component in any shipping container conversion. It helps maintain a consistent internal climate and prevents damage to equipment like IT, medical and electrical components with sensitive temperature and humidity control requirements. It also protects against condensation, mold and mildew spores.
There are many options when it comes to insulating a container but some work better than others. For example, Styrofoam insulation is a quick and cost-effective solution that doesn’t require framing to build out and has an R-value of about 4. However, it’s not the most durable option and will have to be replaced over time.
If you have a warmer climate and a budget that allows, spray foam insulation could be the best choice. This is a more expensive option but it will last much longer than other types of insulation and provides an R-value up to about 20. It can be sprayed directly onto the wall of your container and does not require a vapor barrier.
Another good option is cellulose or other loose-fill insulation, which can be blown into place by machines. These materials are moisture resistant but may be irritative to the skin and eyes and have a low R-value of about 4.
Finally, there are natural fibers like cotton and wool which can have an R-value up to around 3.4 per inch. These are non-toxic, sustainable and a good option if you want to be environmentally conscious with your build. container insulation