When building a new dwelling you are now required to submit a report which includes SAP calculations to demonstrate your building
complies with Part L of the Building Regulations. The SAP Rating provides a Target Emission Rate (TER) and Design Emission Rate
(DER) for the proposed dwelling. Upon completion of the works a pressure test to show that the air permeability is within
reasonable limits will be required before final adjustment calculations can be produced to confirm the as-constructed
building is consistent with the DER and to enable an Energy Performance Certificate to be issued for the completed dwelling.
For free initial advice in relation to the above please contact Greg Parry on 0151 524 0828 or email greg@parry-partners.co.uk
Click here to download a copy Part L1A Conservation of Fuel and Power in New Dwellings
When building a non separated conservatory or extension with a window and door area exceeding 25% of new floor area. A
full SAP report will be required to demonstrate compliance.
Parry & Partners can assist you to gain approval when the areas exceeds 25% by the use of renewable energy sources within the design. To do this two separate reports are provided, one on the existing dwelling with a notional compliant extension and the second on the existing dwelling with the extension as proposed plus the additional improvements. The purpose of providing two reports is to indicate that the Design Emission Rate from the proposed enlarged dwelling, is no greater than that of the existing dwelling with a compliant extension of the same size and shape.
For free initial advice in relation to the above please contact Greg Parry on 0151 524 0828 or email greg@parry-partners.co.uk
Click here to download a copy Part L1B Conservation of Fuel and Power in Existing Dwellings.
When refurbishing a property it is necessary to be aware that if more than 25% of any existing thermal element is affected by works then the whole element should be improved to the required target U-value for that element. Parry & Partners can provide all appropriate documentation to demonstrate compliance or trade-off your obligation. Although the method of compliance for Refurbishments and Conversions is generally an elemental approach, a SAP Report will be required to enable an Energy Performance Certificate to be issued for the completed dwelling.
For free initial advice in relation to the above please contact Greg Parry on 0151 524 0828 or email greg@parry-partners.co.uk.
When building a new commercial building you are now required to submit SBEM & Solar gain calculations to demonstrate your
building complies with Part L2a of the building regulations. The report provides a Target Emission Rate ( TER ) and Building
Emission Rate ( BER ) for the proposed building. Upon completion of the works a pressure test to show that the air permeability
is within reasonable limits may be required before final adjustment calculation can be submitted to reflect any changes during
construction and confirm the as-constructed building is consistent with the BER. Also a Commercial Energy Performance Certificate
must be submitted to building control before a completion certificate can be issued.
For free initial advice in relation to the above please contact Greg Parry on 0151 524 0828 or email greg@parry-partners.co.uk.
Click here to download a copy Part L2A Conservation of Fuel and Power In New Commercial Buildings
When building an extension of over 100m2 and more than 25% of the floor area of the existing building SBEM calculations
will be required by building control. Additionally, if the existing building has more the 1000m2 of floor area, additional
improvements to the existing building will be required to demonstrate compliance.
For free initial advice in relation to the above please contact Greg Parry on 0151 524 0828 or email greg@parry-partners.co.uk.
Click here to download a copy Part L2B Conservation of Fuel and Power in Existing Commercial Buildings
Building Regulation Part L conservation of fuel and power in new non-domestic buildings gives general guidance on meeting Building Regulations Part L compliance.
The purpose of the Simplified Building Energy Model is to produce consistent and reliable evaluations of energy use in non-domestic buildings for Building Regulations Part L Compliance. Although it may assist the design process, it is not primarily a design tool.
This can be demonstrated by provision of information on the following criteria:
Parry & Partners provides a range of services to ensure stress-free compliance with Part L1A of the Building Regulations, Part L1B of the Building Regulations, Part L2A of the Building Regulations and Part L2B of the Building Regulations. SAP is used to demonstrate compliance with Building Regulations Part L - Approved Document L1A by comparing the designed Dwelling Emission Rate (DER) with a SAP calculated Target Emission Rate (TER)