When it comes to choosing a carport for your home, it is important to remember that the framework of the carport will affect both the look and the durability of the structure. There are many materials to choose from and it is important to choose one which will fit with your building and look attractive, whilst also providing a strong, safe and durable structure.
I have listed below the most common carport construction materials that you will find on the market today to give you an insight into what material will cover your carport requirements.
PVC
PVC is used by a large amount of glazing companies because it is mass produced and so it is relatively cheap. It is also reasonably maintenance free and looks good for a period of time. However it does need maintaining, PVC expands and contracts depending on its exposure to sunlight which in turn can create leaks in your roof if it is not professionally installed.
Steel
Steel is a very strong material that creates very robust structures. However it can be expensive and needs treating either by powder coating or galavanising to stop the structure from rusting. Steel also requires regular inspection and maintenance to prolong its life and it will rust easily if it is not maintained correctly.
Steel has a high carbon footprint due to the amount of energy used to produce it; it is however 100% recyclable.
Aluminium
Aluminium is a very durable metal, which is also strong, lightweight and is 100% recyclable. It is a very cost effective construction material as it has a 25 year life expectancy and it is resistant to corrosion in most environments. It only requires minimal maintenance and will stay in good condition for many years. Aluminium is the perfect material for carports and it is quick & easy to install.
Timber
As timber is a natural product and a renewable source, it is the most environmentally friendly product. Timber carports are relatively good value for money however if untreated they can rot and there is a risk of warping, splitting or bending if not treated or installed correctly. Glue–laminated timber offers greater tensile strength relative to steel and is corrosion resistant, however this is a much more expensive option than aluminium.
Below is a table to allow you to compare the rating of each benefit for each material:
| Material | Low Cost | Durability | Strength | Corrosion & Rot Resistant | Value for Money | Colour Options | Life Expectancy | Low Maintenance? |
| PVC | **** | ** | *** | ***** | ** | **** | * | **** |
| Steel | * | **** | ***** | ** | *** | ***** | **** | ** |
| Aluminium | ***** | ***** | ***** | ***** | ***** | ***** | ***** | ***** |
| Timber | ** | *** | **** | ** | *** | *** | **** | ** |
| Key: * Very Poor ** Poor *** Satisfactory **** Good ***** Excellent |
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