What not to do if you plan on boarding your loft for storage!
The biggest mistake made when boarding out a loft, is boarding directly on to your existing ceiling joists.
In most cases, to do this you have to remove or crush your insulation. DO NOT do this!!
To do it right, you must use a raised sub-frame to create an air space under the loft boarding and above the insulation to allow air to circulate underneath.
This will allow your insulation to continue to work 100% efficiently and prevent condensation build up. Not doing this will reduce your insulation's thermal efficiency by 50% or upto 100% if you remove it.
There are still companies that don't build raised sub-frames before boarding.
This was the method used before the days of insulation.
The reason is clear why some companies are still not doing this. By leaving out a sub-frame, it will keep down the costs and therefore they will be more competitive, simply because the consumer does not know the effects of not using a raised sub-frame.
So whoever you choose to board out your loft, make sure they are using a raised sub-frame that allows your insulation to breathe.
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