The boom in the alternative uses for shipping containers over the last few years is driven by their versatility as storage, housing and retail structures.
As with any metal surface, particularly when heated on the inside, there is a high risk of condensation forming. Shipping containers are limited on space, therefore, the right insulation solution should provide optimum performance per inch.
The corrugated nature of shipping containers can make pre-manufactured insulation such as PIR, difficult to apply and this is why we advise a Closed-Cell spray foam as the best solution for such structures.
With limited internal space, the airtightness of spray foam is particularly beneficial when used in shipping containers as it eliminates the potential for thermal bridging. This removes the effects of heat loss through cold surfaces and helps prevents condensation.
Alternatively, external insulation can help to maintain internal space without compromising the thermal performance. The external cladding of shipping containers is becoming an increasingly popular solution.
If you’re converting a shipping container into living space, choosing a solution that prevents condensation whilst offering great thermal performance is essential in your decision making.
To remain warm in the winter and cool in the summer, we recommend an minimum 80mm of Closed-Cell insulation which will offer you the opportunity to regulate the temperature more effectively.
When converting for residential use, Building Regulations may apply and we can assist you in becoming compliant with legislation.
Shipping containers converted into retail units
When the purpose of storing belongings is to protect their integrity, the requirement for them to be kept warm and dry is an important factor.
Metal condensates rapidly during autumn/winter months which is why insulation is a vital consideration in preventing damp whilst retaining heat.
A minimum of 10-15mm of Closed-cell spray foam will eliminate condensation and 50mm will offer great heat retention.
Although we install both open and closed-cell products, not all spray foams are created equal, therefore we are always careful to respect the application uses for both products in achieving the correct install for your building.
The greater the depth of insulation, the harder it is to get it looking neat. We appreciate that in some circumstances, there’s no need to cover over the insulation with plasterboard if the shipping container is just being used as a storage area.
Even though Spray Foam is insulation and not decoration, there’s no reason why an installer can’t get it looking neat with a little bit of care and attention. If the finished article is important to you, it’s always best to choose a company like ThermoFoam to get the best results.
Absolutely. We get hundreds of calls every winter from customers who are experiencing condensation issues when cold air from the outside competes against warmer internal air. With shipping containers used extensively for storage, this can damage valuable possessions.
A thin layer of Closed-Cell insulation is the antidote that eliminates condensation for good. As little as 10mm will achieve the desired results although we always recommend around 20mm is spray-applied to the metal ceiling and walls for the very best results.
With the boom in shipping container conversions in full swing, the requirements for good insulation are imperative. The metal structure is a conductor of heat in the summer and cold during winter months, therefore, temperature extremes can be quite dramatic.
Simply build an internal stud frame from timber or metal leaving a void of 25-50mm between the rear stud and the metal. This allows the spray foam to cover every inch of the surface, removing thermal bridging. We recommend 100mm of Closed Cell Spray Foam.
Like with any air-tight, well sealed building, ventilation is important to regulate the moisture content of internal air. Ventilating containers used as an office or a home is a vital consideration in avoiding potential issues of interstitial condensation.
A well insulated container in what is an already confined space should allow provision of a mechanical ventilation system such as a PIV unit or a ThermoVent solar powered fan. This will help to extract moisture rich air and replace it with fresh, healthy airflow.