COST Action FP1404Fire Safe Use of Bio-based Building Products

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SwedenFire safety in regulations, research and future challenges

Joachim SCHMID, SP – Wood building technologyDavid LANGE, SP – Fire Research

Barcelona, 2015-04-20 and 2015-04-21

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1. Sweden - “map of fire research”

SP Fire Research• Full equipped, accredited fire lab• Fire resistance• Reaction to fire• Fire dynamics• Tunnels, vehicles, teaching,

standardization, simulation

SP Project leader Sustainable Built Environment• Unit: Wood building technology• Fire resistance• Modelling of timber• Reaction to fire• Ecobuild: Material science

Lund University• Fire Safety Engineering• IMFSE (Gent, Edinburgh, Lund)• Active fire safety

Luleå technical University• Fire Safety Engineering• Steel structures• Construction techniques

2. Sweden – Building regulations for fire safetyRegulatory hierarchy

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Example, hierarchy

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Fire safety engineering – analytical design procedures

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Example, combustible/timberStructures can be in timber, no limit on height or number of storeys, if fire resistance requirements are fullfilled (R 60- R 120)

Load-bearing resistance (general)• R30 for single houses• R60 up to 8 story

Reaction to fire• Limitations of the linings in escape routes• Compensation of combustible insulation by means of linings

Facades• Façade test available• Combustible façade, more than 2 story: fire retardant

treatment or sprinkler

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Example, combustible/timber

Load-bearing resistance (general)• R30 for single houses• R60 up to 8 story

Reaction to fire• Limitations of the linings in escape routes• Compensation of combustible insulation by means of linings

Facades• Façade test available• Combustible façade, more than 2 story: fire retardant

treatment or sprinkler

3. Projects - finalized• Fire In Timber European Guideline

• Reliability (nat. project)

• I-joists in wall elements

• Durability of fire retardant treatments

• Nordic-Baltic guideline INT 1 INT 2 EXT

3. Projects - ongoing• Cellulosic fibre insulation (nat. project)

• Fire Safety and Execution (scand. project)

• Parametric fire design (nat. project)

• Fire Safety Engineering (scand. project)

• Fire stops (nat. project)

• Revision of Eurocode 5

4. MarketMarket of timber buildings between 10 and 15% (multi story timber buildings)

Trends

•More architectural design

•More visible wood

•Wooden buildings in larger cities, e g Stockholm

•Higher buildings

but also

•Accident

•Insurance concerns

5. Challenges• Insurance of timber buildings

• Fire stops (in the construction, between parts, in

ventilated façades…)

• Tall timber buildings

• Education

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