|Who can issue a SAP rating?
Any one can produce a SAP rating for the purposes of regulation
14A or regulation 10A; and for the purpose of part L ! However
as with all building regulation matters, it remains the building
control body's responsibility to check the accuracy of the
calculations. As a Consequence small developers, who build
between 1-15 units per year, are increasingly asking plumbers
and Installers to provide SAP ratings.
Why should plumbers be aware of SAP?
SAP calculations are required for all new dwellings as well
as those that have been created as the result of material
changes of use involving building work, and extensions over
a certain size, (check this requirement with your building
Allowances will be made for dwellings that have efficient
gas or oil fired heating systems installed. Electric, solid
fuel and inefficient gas or oil boilers will require higher
levels of insulation. A further requirement will be the
certification of heating and hot water systems to show that
they have been correctly installed and commissioned, and the
provision of operating and maintenance instructions for users.
The type of heating systems & controls, and the level
of insulation and ventilation units installed, influences
SAP calculations. Here are a few tips: -