Roof integrity is often one of the most overlooked factors when coming to install insulation. Despite this, roof integrity plays a key role in the performance of any insulation, and repairs should be made to a roof before installing insulation. This is because gaps, cracks and ill treated areas will all allow for the escape of valuable energy.
To understand the correlation between roof integrity and insulation we must look at the structure of a roof or attic area. When we apply insulation it is typically done so to the rafters of a roof. However solid walls remain in there existing condition. If damage to these walls exists or cracks appear it means that heat can escape. It may sound quite trivial however heat loss through the roof of a home can account for 25% of your total energy bill.
The external areas of the roof also need to be reviewed before installing loft insulation. The main areas for consideration are the slates, the under felt, back pointing and under gaps. These are all areas that can contribute to poor airflow and heat loss. With particular types of insulation it is also important to make sure that your roof is water tight as rain water can cause subsequent damage.
There are also other benefits to ensuring the integrity of your roof. That is the value of your house. A badly damaged roof can dramatically reduce the price of your house. With the introduction of the home information pack energy, efficiency has become a central part of selling a home. Sellers are expected to achieve certain standards, and many of the criteria involve heat loss – this can be managed effectively by using roof insulation.
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