What is the latest version of Approved Document B?
What is the latest version of Approved Document B?
The most recent editions were published in January 2013 and came into effect in April 2013. They replaced Approved Document B (2006) which incorporated 2010 amendments. A new clarified version of Approved Document B was published in July 2019 (see below).
What is Part B of building regs?
Part B contains guidance on fire safety, including means of escape, fire spread, structural fire protection and fire service access. First published 7 December 2010.
What are the changes to Approved Document B?
Clearer and more accessible signage will allow the fire service to navigate smoke filled corridors and buildings more easily in the event of a fire. The amendment went live as of November 26th and applies to all projects where an Initial Notice is served to the Local Authority after this date.
What does Approved B B3 internal spread structure state?
As with Volume 1, Volume 2 also covers the following five topics: B1 – Means of fire and smoke warning and escape. B2 – Internal spread of fire within a building in respect to linings. B3 – Internal spread of fire within a building in respect to the structure.
What is the purpose of Approved Document B?
Approved Document B addresses fire safety precautions which must be adhered to, to ensure the safety of occupants, firefighters and those close to the building in the event of a fire.
What is a protected lobby?
A protected corridor/lobby is, ‘A corridor or lobby that is adequately protected from fire in adjoining areas by fire resisting construction. ‘ A protected stairways is, ‘A stair that leads to a final exit to a place of safety and that is adequately enclosed with fire resisting construction.
When were approved documents introduced?
The first set of national building standards was introduced in 1965. The ‘building regulations’ established standards that had to be achieved in the construction of buildings. The ‘approved documents’ provide guidance for how the building regulations can be satisfied in common building situations.
What is Class D fire rating?
In order to be used in a building, an insulation product will usually need to pass British Standard tests regarding fire protection….A guide to the classifications.
| Classification | Definition | Description |
|---|---|---|
| B | Combustable | Limited contribution to fire |
| C | Minor contribution to fire | |
| D | Medium contribution to fire |
How do you read a fire rating?
It is typically the duration of integrity that is mislabeled “fire rating”. If a door had a fire rating of two hours, it is because the integrity portion of an FRL tested at 120 minutes, ie -/120/30. Note the structural adequacy is shown as “-” as doors and frames don’t have any structural adequacy.
What does class E fire rating mean?
– Products that have significant contribution to fire but resist a small flame for a short time are Class E. Those with a contribution to fire but a greater resistance to a flame, would be Class D. – Products that meet more stringent requirements than Class D with limited contribution to fire fall into Class C.
