Ceiling employment below wood or steel beams with and without sound requirements
Material
1 x 12 mm or 2 x 9 mm Permoxxboard.
handling 1 x 12 wood
sheet 12 mm, riveted C-C 100mm on wooden rafters. between the rafters wooden strips 45 x 45 C-C 600mm, blunt seams on the wooden laths. Put rock wool 35kg/m3 40mm between the beams.
Handling 2x9mm
1st sheet 9mm screwed, C-C 300mm on wooden strips, 2nd sheet sight side riveted on 1st sheet (covering the seams of 1st sheet), distance between screws 150mm. Staples, length 22 mm. Put rock wool 35kg/m3 40mm between the beams
Seams for further finishing of the sight consult the processing advice on our website. WWW.Permoxx.com
Seams 2 – 4 mm have always to be glued with fire-resistant glue or kit
Edges (with and without demands for sound)
Screwed hardwood edge laths apply with rock wool strip to the wall
Edges (with demands for sound)
Screwed hardwood edge laths apply with rock wool strip to the wall with steel rails on ANR ceiling hangers (for lower demands deviations possible).
Test reports
For fully detailed construction always consult the construction in the certificate