Please follow the following instructions carefully:
Always store the boards in a dry place. Only install the boards if they are dry.Suggested board thickness for use with GUTEX Thermofibre® blow-in insulation: ≥ 60 mm
Install boards perpendicular to framed construction, making sure they fit tightly.
Avoid cross joints.
Do not use damaged boards.
Seams and interruptions, such as dormer walls, chimneys, etc., must be tight against wind and driving rain.
Cut to size with common woodworking machines.
Boards are not designed and made to provide structural support, strength or bear loads.
Avoid exposure to high levels of moisture on the interior sides of the boards.
Vacuum off the dust in accordance with applicable workplace safety regulations or practices.
Intallation - Walls
Following on-centre distances apply: 20 – 40 mm board thickness → max. on-centre is 62.5 cm 60 – 100 mm board thickness → max. on-centre is 83.5 cm 120 – 160 mm board thickness → max. on-centre is 93.5 cm
Stagger/offset the joints from row to row by min. of 30 cm.
Installation - Roofs
Maximum on-centre distances for rafters is 90 cm
Stagger butted side joints with the next row’s joint being centred no closer than the next rafter.
void walking on areas between the rafters.
Fasten the board immediately after placing in position and cover it for protection with roofing paper, sheathing or sarking (e.g. GUTEX Multiplex-top). Fasten counter batten through the protective covering and into the rafters. For your convenience in determining the most suitable fastener, you'll find fixation forms under "Service"
GUTEX Ultratherm is not a load-bearing structural element (e.g. snow).
Fastening in vented facade applications
To determine the wind load for your specific zone (pursuant to DIN 1055-4:2005-03), use the wind zone map.
You'll find information about the quantity of nails and their spacing in the GUTEX Multitherm data sheet.