Light Trespass
[edit] Definition of light trespass
Light trespass occurs when there is a light spill or if light is cast where it is not wanted. It is somewhat subjective because it is difficult to define when, where, and how much light spill is acceptable or unacceptable. An example of light trespass is when light from a street or floodlight enters a neighbouring window.
There are various solutions to mitigate light spill or light trespass through the design of the lighting or ancillary items such as louvres, one such example is given below.
[edit] Lighting solutions - anti glare and diffusion
Louvres can provide essential glare control by creating directional light diffusion, source concealment and glare control. The effectiveness of a system depends on the materials being used and design of the system.
It is possible to use metal fabrics that are directional, thus reducing light penetration in certain directions, whilst letting light through in other directions.
One such example is a thin and light metal louvre, corrosive-resistant directional fabric for use inside or out. There are up to 700 paper-thin miniature bronze louvres woven into every metre of fabric. The tiny louvres are usually given a standard protective black polyester coating for a durable finish, absorbing and eliminating re-reflected heat, light and glare. They can be any colour, as well as having a matt or highly reflective finish to suit. The standard louvre angles are 17° and 0°. Angles between 17° and 0° can be produced on application. It can be used for various lighting purposes, including in: trading floors, museum or exhibition displays, shading traffic lights, and buildings and bridges around the globe.
[edit] Related articles on Designing Buildings
Featured articles and news
CIOB and CORBON combine forces
To elevate professional standards in Nigeria’s construction industry.
Amendment to the GB Energy Bill welcomed by ECA
Move prevents nationally-owned energy company from investing in solar panels produced by modern slavery.
Gregor Harvie argues that AI is state-sanctioned theft of IP.
Heat pumps, vehicle chargers and heating appliances must be sold with smart functionality.
Experimental AI housing target help for councils
Experimental AI could help councils meet housing targets by digitising records.
New-style degrees set for reformed ARB accreditation
Following the ARB Tomorrow's Architects competency outcomes for Architects.
BSRIA Occupant Wellbeing survey BOW
Occupant satisfaction and wellbeing tool inc. physical environment, indoor facilities, functionality and accessibility.
Preserving, waterproofing and decorating buildings.
Many resources for visitors aswell as new features for members.
Using technology to empower communities
The Community data platform; capturing the DNA of a place and fostering participation, for better design.
Heat pump and wind turbine sound calculations for PDRs
MCS publish updated sound calculation standards for permitted development installations.
Homes England creates largest housing-led site in the North
Successful, 34 hectare land acquisition with the residential allocation now completed.
Scottish apprenticeship training proposals
General support although better accountability and transparency is sought.
The history of building regulations
A story of belated action in response to crisis.
Moisture, fire safety and emerging trends in living walls
How wet is your wall?
Current policy explained and newly published consultation by the UK and Welsh Governments.
British architecture 1919–39. Book review.
Conservation of listed prefabs in Moseley.
Energy industry calls for urgent reform.