Interior construction wood

1

Roofing timber (dry): pitched roofs, rafters, rafters, beams, rafters, wall tiles.

TE/BI

60 years

1-2

Roof timber [Hylotrupes residential areas]: where, in accordance with the Building Regulations (1991 [5]) (applicable in England and Wales), Scottish Building Standards (1990 [6]), and the Building Regulations (Northern Ireland) (1994 [7]), (Hylotrupes bajalas Lj danger: rafters, rafters, beams, rafters, wall tiles.

2

Roofing wood (risk of getting wet): places where components may get wet, for example due to condensation; rafters, rafters, beams, rafters, wall tiles, flat roofs (uninsulated), hand beams, gutters, flat roofs (insulated and turned), open beams.

2

Exterior walls / ground floor beams: wooden trusses, external walls.

2

Roof bars.

TE/TB

60 years

Waterproofing layer exterior timber for construction

3

Exterior wall cladding, windshield, eaves and slice boards

TE/BX*

15 years

3

Exterior wall cladding, windshield, eaves and slice boards, which are subsequently protected by a permanent and appropriate coating

TE/BX*

30 years

2

Cedar shingles

TE/CS

30 years

Vimeer

2

Only moisture-resistant class WPB (weatherproof and waterproof)

TC/EPa

60 years

3

Only moisture-resistant class WPB (weatherproof and waterproof)

TC/EPb

15 years

Garden material Wood used for landscaping that does not come into contact with the ground

3

Stair railings, girders, gates, tables, slats, hangers, post tops, sticks, garden floor tables, farm buildings, parts of arbor, gazebo and playground equipment located above ground and affected by weather conditions.

TE/GFa*

15 years

Garden material in contact with soil or fresh water, wood for landscaping and farm buildings

4

Posts - sawn or longitudinally sawn, sawn and planed, machine-turned, non-sawn round wood, semi-circular wood, main floor beams, logs at the bottom of the fence. Farm buildings: wooden parts inside or often getting wet.

TE / GFb * (softwood only)

15 years

Parts of the ground boundaries above the ground

3

According to point 311 of the Road Administration specification (November 2002).

TE/MF

30 years

More durable industrial wood

4

Parts of the road boundary in contact with the ground: in accordance with point 311 of the Road Administration specification (November 2002). Electric poles Railway sleepers

TE / HD (softwood only)

30 years