Thursday, 9 January 2014

How to Improve Thermal Performance of Your Shed?

Imagine it's June in Australia, the evenings are getting cooler and mornings are a bit frosty. What will be your first reaction to the clothes you will wear? You will put on a thicker coat or a jumper. With the progress of the season, the weather gets colder and at that time you might want to add a woolly bobble hat and insulated boots. Insulated sheds are a bit like adding a few extra layers of your clothing.
All the sheds are however not suitable for insulating. There are typically several areas to address while winterizing the shed. They are roof insulation, wall insulation, floor insulation and upgrading windows.
The insulation's thickness, which is needed for insulating a shed depends on a number of factors. The factors, which influence the insulation thickness is as follows:
  • The reason behind insulating the shed (is it only for storage or for office purpose)
  • Local climate
  • The kind of insulation material, which you use
The kind of insulation and its thickness is a topic for yet another article. Here, let us just consider the various locations, which actually need insulation.
Let's start by having a look at wall insulation. Basically, timber shed walls are constructed with the vertical timber studs, which are usually 4x2 but may be 3x2 or lesser in a few cases as well. The insulated sheds fits between the timber studs and then the lining board is fixed to the studs' internal face. Different materials have different insulating properties. You insulation material selection will vary depending on availability, cost, size and makeup of the shed.
Roof insulation is also a great way of improving thermal performance of your shed. It's done using the insulation below roof deck and between rafters. Make sure to provide enough ventilation space between the base of roof deck and top of insulation. When a shed gets heated, warmed air inside the shed rises and has a high moisture content. As warm air reaches the cold timber roof, it gets condensed, and if you don't have a good ventilation space above rafters, the moisture will accumulate and the roof timbers will start decaying. While insulating the shed roof, you should make sure ventilators are at eaves and there is at least two inches gap between top of insulation.
Insulating shed floor is important. Warm air actually rises, so usually roof and walls are typically the first areas that needs consideration. Having the insulated layer beneath floor boards contribute towards keeping contents of shed toasty.
You can reduce heat loss by upgrading your windows. Make sure your windows are double glazed ones because they can retain more heat than the one's that are single glazed. Timber frames are fine, but if you have metal frames make sure they have a thermally broken design because that will avoid the material running with condensation in cold winter months.
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