Building regulations – Quickguides for rooflights, Part L, Conservation of heat & power
Quickguides on building regulations, Part L – Conservation of heat and power for rooflights and roof windows.
Technical information for rooflight specifiers, installers and building occupiers
Updated guidance on rooflight non-fragility classifications
NARM has published an updated version of its Quickguide 08, entitled ‘Understanding CWCT Classifications of Rooflight Types’. The CWCT (Centre for Window & Cladding Technology) tests for non-fragility comprise of soft body and hard body impact tests as well as a load retention test. They are intended to identify what glass size and type of…
Imported profiled GRP rooflights are ‘failing to meet UK safety standards’
NARM, The National Association of Rooflight Manufacturers, has been made aware of a number of instances where profiled GRP (Glass Reinforced Polyester) rooflights supplied for ‘in-plane’ applications including factory and warehouse roofs, are failing to provide conformity with the UK annex to BS EN 1013: the European standard for single skin profiled rooflights. This annex…
Daylight and wellbeing – a revealing experiment
The BBC’s recent Horizon program ‘Body Clock: What Makes Us Tick, gives a fascinating insight into the role that exposure to the rhythm of natural daylight plays in our health & wellbeing. The program features an experiment on subject Aldo Kane, in which he is deprived of daylight in a bunker, with only controlled artificial…
Daylight, energy efficiency and reduced emissions: the new world view
As recently as the turn of the millenium, there was still a prevailing perception amongst architectural specifiers and other interested parties, that rooflights had a negative effect on the energy efficiency of buildings. This view was borne out of the fact that even the best insulating rooflights of the time generally offered lower thermal performance…
RCI article on rooflight areas
Did you see our article on how small differences in rooflight area can have a significant impact on light levels and energy usage? https://lnkd.in/d5qmRH2
New updates to NARM specification guidance for glass rooflights
Reflecting the continual developments in materials and the design and specification of glass rooflights, we have updated our guidance page on the specification of glass rooflights. Glass is used throughout buildings for its optical clarity, longevity and structural properties; it can offer unobstructed views out of a building, or if specified so, can provide natural…
Daylighting in Education: compelling statistics:
The Building Research Establishment (BRE) released the results of analysing more than 70 research studies and documents in its paper, Health and Productivity Benefits of Sustainable Schools. Here are examples of just three conclusive research findings: In tests, cognitive function was 15% worse with CO2 at around 945ppm than it was in fresh outdoor-fed air,…
How rooflight area affects light levels, energy costs and CO2 emissions: the facts.
NARM, The National Association of Rooflight Manufacturers, has played an important role representing the UK’s rooflight industry in consultation with the Government and its subcontractors, CIBSE, AECOM and the BRE, on issues relating to Part L of The Building Regulations. The following article by NARM’s Technical Committee, explains how small differences in rooflight area can…
Daylight benefits in retail environments
In retail environments and offices, the concentration and performance of workers has been proven to be superior to those where only artificial light is present. There is compelling evidence that shoppers in retail environments generally stay longer and spend more where there are high levels of natural daylight – and the performance of retail workers…
