We produce accurate Daylighting Calculations for EcoHomes and Code for Sustainable Homes credits.

What are Daylighting Calculations?
Daylighting Calculations are produced by our assessors to determine the amount of natural light that is anticipated to penetrate a room.  Factors such as the size of the opening, reflectivity of surfaces, and view of clear sky from a window will all affect the daylight factor in a room.

Awardable Credits
The calculations can be used to achieve 1 to 3 credits in Health & Wellbeing (Hea 1) in EcoHomes or the Code for Sustainable Homes.  One credit can be achieved where the average daylight factor for kitchens achieves a minimum of 2%.  One credit can also be achieved where the daylight factor achieves a minimum of 1.5% in lounges, dining rooms and home offices.  Another credit can be met where a minimum of 80% of the kitchen, lounge, dining room and home office receives direct light from the sky.