Timber
Timber – full compliance to hazard Class 3a Suitable
for external use, not in ground contact.
All timber is supplied in accordance with the Pan European
Forestry Scheme, the Beamlock System is produced using Pinus
Sylvestrus (10,800 – 13,000 bending per N/mm2, comparison
Oak 10,500 – 14,500 bending N/mm2)
It is made up using lamellas or pine laminated together;
thus providing incredible strength (see “Stronger Than
Oak Mortise and Tenon System”).
- Timber sections are dried in a climate-controlled kiln.
- The lamellas are then laminated together to form a single
solid beam using a high frequency hot press.
- The beams are planed to section to achieve a tolerance
of +/- 1mm.
- The finished components are then treated to Hazard Class
3 using Vacsol Aqua double vacuum pressure impregnated
preservative.
This manufacturing process ensures that all Beamlock timber
components are of the highest quality, avoiding all the typical
problems such as shrinkage, splitting and variation in size,
normally associated with timber section of these dimensions.
All external timbers must be coated with a proprietary brand
of wood preserver, stain or paint within 6 months of installation
to avoid UV light degradation of the treatment.
Colour and Finish
The timber colour is unaffected by the Vacsol Aqua treatment
process, which leaves complete individual choice as to how
the finished project can be decorated.
Preservative Treatment of Timber
All Beamlock timber has been treated with Vacsol Aqua double
vacuum treatment, the most effective and environmentally sensitive
treatment on the market with an anticipated service life for
60 years in Hazard Class 1 and 2 applications. Cutting of the
timber on site is unavoidable. This will expose untreated timber
and it is imperative that crosscut, notches and bored holes
be liberally swabbed with Vacsele End Grain Preservative.
Vacsol Aqua
Vacsol Aqua is approved to standards and specification of
Building Regulations of England and Wales and Building Standards
Scotland and the NHBC for many different applications and complies
with the following standards:
C1-10 BWPDA, BS5707 (1997), BS5589(1989), BS5268 part 5 (1989) BS1186(1986)
BS5502), BS6566 part 7.
The design life is for 60 years in Hazard Class 1 and 2.
The design life is for 30 years in Hazard Class 3.
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This table is based on the Hazard Classes as defined in the British and
European Standards.
| Biological Hazard Classes |
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| Principle Biological Agency |
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| Typical service Situation |
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| Above ground, covered. Permanently dry. Permanently <18% moisture
content. |
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| Internal with no risk of wetting nor condensation |
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| All timbers in normal pitched roofs except tiling battens and
valley gutter members. Floor boards, architraves, internal joinery
and skirtings. All timbers in upper floors not built into solid
walls. |
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| Above ground, covered. Occasional risk of wetting. Occasionally>20%
moisture content. |
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| Internal with risk of wetting or condensation |
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| Tiling battens, frame timbers in timber frame houses, timber
in pitched roofs with high condensation risk, timbers in flat
roofs, ground floor joists, sole plates (above dpc), timber joists
in upper floors built into external walls. |
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| Above ground, not covered. Exposed to frequent wetting.
Often >20%
moisture content. |
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A - External, above damp proof course (dpc) - coated
B - External, above damp proof course (dpc) - uncoated |
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| External joinery including roof soffits and fascias, bargeboards
etc, cladding, valley guttering timbers, fence rails, gates,
fence boards, check boards, agricultural timbers not in soil/manure
contact. |
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Stronger than Oak
Mortise and Tenon System
The Beamlock Pine System has had extensive structural testing
at the Building Research Establishment (BRE) Centre. To establish
a fair comparison to mortise and tenon oak timber framing currently
available from specialist companies, we decided to do an identical
test.
The results are shown in the graph. This is all achieved by using
the intelligent Beamlock connection system, a number of sophisticated,
modern methods – from laminating timber in Finland to computer
programming for cutting accurate timber sizes. The final result is
a remarkably strong and simple, yet architecturally attractive system. |
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