Fully compliant with BREEAM Issue Hea 01
How Energytest can help
Fast and accurate daylight calculations at a competitive price.
Comprehensive advice and support to ensure you arrive at the most economic and feasible solution to achieve compliance.
Daylight calculation reports can be used to aid building design, gain credits under BREEAM, support Planning applications, and satisfy industry requirements: such as for education or healthcare buildings.
Using the same dynamic simulation model, we can provide natural ventilation calculations, thermal comfort analysis, and an assessment of Part L Building Regulations compliance (SBEM).
BREEAM issue Hea 01 requires daylighting, artificial lighting and occupant controls to be considered at the design stage to ensure best practice visual performance and comfort for building occupants.
Up to two credits are available for the provision of daylight calculations. To gain these credits a sufficient proportion of the occupied space within the building needs to be shown to achieve an adequate level of daylight, measured in terms of a daylight factor and uniformity ratio. The specific levels required vary depending on the type of building being assessed.
The location and geometry of the building.
The fabric of the building.
External shading, such as from overhangs, or from neighbouring buildings or obstructions.
The size and position of windows and rooflights.
The light transmittance properties of glazing.
What our clients say:
“We have used Energytest to produce all of our SAPs and SBEMs for the last 5 to 6 years. After working with other energy consultants we stuck with Energytest for a number of reasons. They are very quick to respond with quotes and queries and there is always someone on the other end of the phone. Even if the assessor who produced your calculations isn’t available everyone at Energytest is more than happy to look over the calculations and has the knowledge to answer your query.
They provide more than just a calculation service, they are also problem solvers finding the thermal solutions to make sure our designs pass. I have recently been very impressed with the service we received on a large commercial project. On the calculations for this particular project they produced an additional report alongside the SBEMs detailing how and where we could reduce the specification to significantly save on the build costs whilst meeting the requirements of Part L.”
L Gittens – bi Design Architecture
- L1A: SAP calculations for newly constructed dwellings
- L1B: SAP calculations for residential conversions
- L1B: SAP calculations for domestic extensions
- L1A: Domestic air leakage testing
- G: Water consumption calculations
- F: Extract fan flow rate testing
- Planning: Code for Sustainable Homes
- Planning: Energy Statements