ROLE OF DAYLIGHTING IN CURRENT BUILDING DESIGN

IN SLOVENIA

Miha Tomšič

ZRMK, Slovenia

NAS EnerBuild RTD, Budapest Workshop, 24&25 January 2003

Background

Daylighting:

What we all (should) know

but do we really consider it in practice ...

Technical issues

Satisfaction of the end-user

Regulatory obligations

Individual needs and demands

Visual perception:

• quality of light

• quantity of light

• individual visual capability

Regulations, recommendations, … :

• minimum glazed area

• correction factors (actual light transmission)

• daylight factor

• spatial distribution of light

• direct insolation

• link to thermal requirements

• …..

Present situation:

• specific regulations for (day)lighting?

• demands from other regulations

Past situation:

• a standard acting as a regulation - daylighting and electric lighting

SLOVENIA

Slovenian standards, regulations, … :

SIST DIN 5034 (1-6)

Regulation on requirements for safety and health of workers in working spaces

Regulation on minimum technical requirements for residential buildings and apartments

Regulation on normatives and minimum technical requirements for kindergartens

Regulation on thermal protection and efficient use of energy in buildings

Handbook for consultancy services in investment construction work

Non-obligatory scheme:

National quality mark in civil engineering - technical quality of residential buildings (ZRMK)

Daylighting as an equivalent topic

Definition of criteria

Evaluation scheme

“The right to sunlight”

Sets of requirements by health inspectorates

National building law: “influence of a building on existing neighbouring buildings and people”

Direct insolation

Design practice:

No treating of daylighting issues at all

Satisfying minimum requirements

Consideration of individual demands

In-depth analysis: visual comfort, impact on electricity use …

Insolation studies

…..

Facts:

satisfying human biological and psychological needs

integral part of energy-conscious design

well-balanced technical and non-technical items

Needs:

national regulations

awareness-raising

transfer into common practice