Part L Planning Regulations & Roofing

A regulation that came into full force in April 2014, Part L of Schedule 1 to the Building Regulations (the conservation of fuel and power), has made some quite drastic changes to how we approach roof insulation.

It requires that in situations where over 50% of the current roofing system of a property is to be removed or renovated, the contractor must ensure that the roof is brought up to modern standards of insulation.

The u-value that the contractor is required to achieve varies between England, Scotland, Ireland and Wales; between building types (domestic and commercial), as well as the type or roof (pitched & flat).

Typically this translates to u-value of:
Roof Type                        New Build                  Existing Buildings
Pitched                           0.11 W/m2.K                 0.16 W/m2.K
Flat                                 0.11 W/m2.K                 0.18 W/m2.K
What Does This Mean For The Tenant?

For not complying with this new regulation, the client will not received a Building Regulations Compliance Certificate, which will be picked up by solicitors during the sale of the property and can severely hamper the process.

To speak to one of our experts about how this affects you please get in touch!


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