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Including thermal
insulation
Norm
8/3 is the " top-model ". It has 3 pieces;
its edges and both sides are isolated, it is
produced as standard with sandwich covers
according to a-value class 4.
Product definition
An element ready for
assembly according to DIN EN 14975 norm
Assembly location cover
Sandwich cover with heat isolation ( 56 mm )
U - value : 0,55 W/m²K
Tested air impermeability a-value : class 4
Both sides are covered with white
Pre-assembled lock for high security.
Wooden stair pieces
Pine cheeks ( 21 x 83 mm )
Skidproof
profile stairs made of pine / beech
( 80 x 360 mm )
Case
Glued wooden layer ( raw plate, multiplex
plate ). Double undercoat with white paint.
Case height 24 cm. Isolation around the
cover. As the stair pieces are lying in the
case, no extra opening area is necessary on
roof ground. Cover coating is available up
to 16 mm. ( max.
10kg/m² )
Standard equipment
Guardrail is positioned on top right side of
the stairs. Opening rod. Easily mounted
white edge moldings. Protection plastics on
the feet of stairs. 6 pieces of assembly
kits with distance adjustment screw.
Assembly, operation and maintenance
instructions.
Accessory
Assembly place
protection guardrail
( obligatory
according to regulations )
Safety
guardrail for the other side.
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