Daylight Calculations

Daylight Calculations

We evaluate on the basis of the Buildings Decree Department, 3:11 Building Decree and NEN 2057 or daylight openings are sufficient or whether adjustments are needed in the design.

For drawing up the daylight calculation, the following activities:

• To determine the requirements for requisitioning for daylighting per departure according to the Building
• Calculating the equivalent daylight area per departure according to NEN 2057 and the keys on occupied area
• We indicate what measures must be taken to meet the requirements.

Step plan accordance with the NEN 2057

The equivalent daylight surface area is determined by successively through the following steps:

1. The building is divided into usage.
2. The determination of the areas of the sojourn area and accommodation areas.
3. Find the minimum equivalent daylight area requirement in Section 3:11 Building Decree belonging to the functional use, the sojourn area and accommodation areas.
4. In determining which light openings count towards equivalent daylight area.
5. Calculation of the equivalent daylight area per occupied area the sojourn area and accommodation areas.
6. Checking the calculated equivalent daylight area of equal or greater than the equivalent daylight area requirement of the Buildings Decree.