Installation guide - Under roofing

Under rafters Panelling finish

Unroll the ATI insulator horizontally under the rafters starting at the top of the roof.
Staple the ATI insulator on the ridge purlin with a turnback of at least 5 cm.
Staple the ATI insulator beneath the rafters up to the next purlin without forgetting to make
a turnback of at least 5 cm on the latter.
Proceed in the same way form the middle purlin to the lower purlin.
Join the overlap between each width with aluminium adhesive.
Fix a frame of brace-laths on the rafters and purlins, to create an air space.
Fix the panelling on the brace-laths.

Use 16 mm staples (galvanized or stainless steel).
Clean the joins with a dry and clean cloth before applying the adhesive.
Use an adhesive especially adapted to the insulation (aluminium adhesive of 75 mm or
polyester adhesive of 100 mm).
Respect the ventilation (inert-air space between the ATI insulator and the panelling).
To avoid thermal bridges, fix a brace-lath on the lower purlin and the middle purlins.
The dimensions of the brace-laths have to be in accordance with the thickness of the insulation,
to preserve a sufficient air space between the ATI insulator and the panelling.

Fix the suspension posts on the rafters.
Unroll the ATI insulator horizontally under the rafters starting at the top of the roof.
Slit the ATI insulatorwith a craft knife to allow each suspension post to pass through.
Close again the cutting with the ATI adhesive.
Staple the ATI insulator on the ridge purlin with a turnback of at least 5cm.
Staple the ATI insulator beneath the rafters up to the next purlin without forgetting to make
a turnback of at least 5cm on the latter.
Proceed in the same way from the middle purlin to the lower purlin.
Join the overlap between each width with aluminium adhesive.
Fit the metallic rails onto the suspension posts.
Screw the plasterboard onto the metallic rails.

Use 16mm staples (galvanized or stainless steel).
Clean the joins with a dry and clean cloth before applying the adhesive.
Use an adhesive especially adapted at the insulation (aluminium adhesive of 75mm or
polyester adhesive of 100mm).
To avoid thermal bridges, fix a brace-lath on the lower purlin and the middle purlins.

Unroll the ATI insulator horizontally under the rafters starting at the top of the roof.
Staple the ATI insulator on the ridge purlin with a turnback of at least 5cm.
Staple the ATI insulator beneath the rafters up to the next purlin without forgetting to make a turnback of at least 5cm on the latter.
Join the overlap between each width with aluminium adhesive.
Fit the semi-rafters 60 x 40 on the rafters.
Screw the suspension posts on the semi-rafters.
Fit the metallic rails onto the suspension posts.
Screw the plasterboard onto the metallic rails.

Use 16mm staples (galvanized or stainless steel).
Clean the joins with a dry and clean cloth before applying the adhesive.
Use an adhesive especially adapted to the insulation (aluminium adhesive of 75mm or polyester adhesive of 100mm).
To avoid thermal bridges, fix a brace-lath on the lower purlin and the middle purlins.