- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 15 Feb 2018
BRE (Building Research Establishment) is an independent, research-based consultancy, testing and training organisation, operating in the built environment and associated industries. A guide to the use of urban timber (FB 50) was written by Geoff Cooper and published by BRE on 31 July 2012.
The guide suggests that.
|Burr is an irregular-shaped swelling or excrescence found most often on the lower main trunk, but also on branches and rootstocks of a range of tree species. A burr can take on several forms: it may consist of clusters of expanding slow-growing epicormic buds or be formed from a distinct series of irregular contorted swirls.
Birds-eye figure can be easily mistaken for the burr figure that is created by epicormic growth due to a similarity in appearance. However, birds-eye figure is caused by irregularities in the growth rings in the form of depressions or dimples which, once formed, are perpetuated through the stem. These elements run in various directions more or less at right angles to the stem surface. The irregularities of the growth rings will show on tangentially cut surfaces as (a) highly ornamental mass of circular ‘eyes’.
 Related articles on Designing Buildings Wiki
- 11 things you didn't know about wood.
- A guide to the use of urban timber (FB 50).
- Birds-eye figure.
- BRE articles on Designing Buildings Wiki.
- Building Research Establishment.
- End racking.
- Physical Properties of Wood.
- Ripple figure.
- The differences between hardwood and softwood.
- Tiger-stripe figure.
- Timber vs wood.
- Types of timber.
Featured articles and news
The construction methods have changed a lot since the first roads were built around 4,000 BC.
How to deliver a five-fold multiplier effect from investment in water infrastructure.
RSHP's Leadenhall building is named a 2018 RIBA National Award winner.
Gary Neville's controversial Manchester tower gets the green light to go ahead.
Health and safety is everyone’s responsibility.
BSRIA guide to energy storage in buildings - a technology overview.
The UK’s largest Passivhaus accredited affordable housing scheme.
ICE set out 5 recommendations for the Government Construction Strategy 2018 update.
Balfour Beatty fined £500,000 for exposing workers to hand-arm vibration.
James Brokenshire launches a consultation on banning combustible cladding.
A year after Grenfell, we have a collection of 30 articles telling you everything you need to know.