Every longitudinal layer of BBS is manufactured from glued single-ply
boards.
This leads to smooth surfaces without grooves on both sides,
as well as a continuous sealed and compact cross-section with the following
advantages:
High level fire prevention
In case of
fire, with a 5-layer construction for example, 2 layers can burn away completely
and a 3-layer BBS is left with a closed surface on both sides.
This guarantees a high reliability against burning right through and an
impermeability to smoke. Due to this, chimney effects, which can develop through
open grooves and hollow spaces respectively, are definitely prevented.
High level noise protection
From a 5-layer BBS upwards for example, 2 layers can be fully removed on-site
when installing, and a [on-site] 3-layered BBS with closed
surfaces on both sides is left over. Longitudinal sound lines in the element
through grooves and hollow spaces respectively [channelling] are practically
impossible.
High level heat insulation
The whole BBS
contributes to heat insulation due to the full thickness. Because both of the
surfaces are always smooth, without grooves and closed, warm air cannot rapidly
get into the inside of the element [and therefore into colder layers] via
grooves.
Water vapour diffusion
with its average �
value of 70 BBS always has a vapour dampening effect, however, never stopping
vapour completely, and this all-over if the element joints are professionally
constructed appropriately, because every single longitudinal layer is a glued
single-ply board. This is why we can normally completely do without vapour
dampening or vapour stopping foils [price advantage, ecology, no permanent
connection problems with foils].
High wind tightness
because both of the BBS surfaces are always manufactured smoothly, without grooves
and closed, no wind can get into the inside of the element [and therefore into
warmer layers] via grooves. BBS is guaranteed wind tight,
independent from the amount of layers. Normally, when the element butts are
appropriately and professionally constructed, this all-over, wind tight, effect
can be taken into account and no additional sealing layers are necessary [price
advantage, ecology, no permanent connection problems with foils].
High reliability
against structural
damages during the execution of construction work. As both BBS surfaces are always manufactured smoothly, without grooves and closed, no
dampness or rainfall can penetrate into the element. Normally, when the element
joints are appropriately and professionally constructed, the dampness seal
channels can be partly [apart from in the joint area] or completely done without
depending on the situation. The moisture only penetrates a few mm into the top
layer of the element and diffuses back out again within a short period of time.
In this way, you are protected against possible damages e.g. unexpected
rainfall. |
BBS 5-layered construction
single-ply board glued on the flanks =
longitudinal layer
|
