FF-PIR for renovation and supplementary thermal insulation of roof and walls

The FF-PIR insulation products are suitable for use in renovating exterior walls and roofs. In roofs, the existing insulation can be fully replaced with FF-PIR insulation products. Another option is to install a new insulation panels on the bottom surface of roof supports as a continuous layer, sealing the seams with an elastic foam sealant and tape. The thickness of the insulation is determined either on the basis of the desired U value or by maximizing the utilization of available space.

Vapor barrier and insulation panel in one product

For exterior walls, the FF-PIR insulation panels are installed on the interior side of the existing structure. Within the structure, the insulation panel will function as both a vapor barrier and supplementary thermal insulation without requiring additional frameworks. The FF-PIR 40/70 GYL products, which consist of a 30 or 60 mm insulation panel to which a 9 mm gypsum board with tapered edges has been glued, can also be used as interior insulation panels for walls. Using GYL panels will significantly speed up the installation process, as a single work element produces both thermal insulation and gypsum boarding. The mechanical attachment of the panels is carried out according to the instructions provided by gypsum board manufacturers. FF-PIR 40 ALS is another product specifically designed for interior supplementary thermal insulation. The thickness of the panel is 40 mm, and it measures at 600 x 2,600 mm. When joining two panels, a 20 x 100 board can be embedded into the joint. Use an elastic foam sealant and work carefully when constructing supplementary thermal insulation.

Exterior walls
Framework	Insulation/framework	FF-PIR	u-value W/m2K
Wood	Sawdust 100 mm	FF-PIR GYL40	0,40
Wood	Sawdust 100 mm	FF-PIR GYL 70	0,28
Wood	Sawdust 100 mm	FF-PIR 90 ALK	0,14
Wood	Sawdust 100 mm	FF-PIR 30 ALK	0,23
Roofs
Framework	Insulation/framework	FF-PIR	u-value W/m2K
Wood	Mineral wool 200 mm	FF-PIR 30 ALK	0,16
Wood	Mineral wool 300 mm	FF-PIR 90 ALK	0,09