Brand- og blyskabe GB NY - Flipbook - Side 14
METHOD 2 WITH THE INSTALLATION OF A LEAD PLATE IN THE WALL
You can choose to install lead plates in the wall which
today is usually not the preferred method as lead is
regarded as an environmentally dangerous heavy metal
which should really be minimised in new buildings.
However, it is often a requirement to match this detail in
existing buildings, hence the installation and description
is still relevant.
When the gap in the wall construction is made the lead
plate must be guided into the apperture leaving a minimum free width of 20 mm.
The fire door from Zystm is supplied with an overlapping
lead plate which covers the internal wall plate ensuring
a concealed covering and isolation of radiation penetration.
In situations where the wall apperture is not prepared
with a lead plate, it is possible to install a frame with a
lead covering, however this solution increases cost.
Placement of 19 mm addition
10 mm seal
Lead on fire frame
Lead on fire frame
Lead in wall - Note lead
is carried out into the cut-out
10 mm seal
Lead in fire door
METHOD 3 WITH BUILT-IN LEAD PLATE INTO WALL GUIDED LEAD IN DOOR CUT- OUT
Method 3 based on method 2, where no lead has been
guided into the doorway. Here, a straightener with lead
can be mounted, so that you still get shielding. This
solution is not preferable and should be considered an
”emergency solution”
10 mm seal
Lead on fire frame
Lead on fire frame
Lead in wall - Note lead is NOT
guided into the cut-out
Gerigte med bly
10 mm fuge
Bly i branddør
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