Roofs Made of Trimoterm Snv Panels

MOUNTING INSTRUCTIONS - ROOFS MADE OF TRIMOTERM SNV PANELS

Tehnical document No 10 / Version 3.1 / April 2010 CONTENT

1.0 Mounting Instructions - Roofs made of Trimoterm SNV panels [1] 1.1 General instructions and recommendations [1] 1.1.1 Panel transfer[2] 1.1.2 Panel screwing [3] 1.1.3 Additional connecting screws of longitudinal joints [4] 1.1.4 Required number of screws [5] 1.1.5 Sealing of longitudinal joint between panels [5] 1.2 Performance of some details [6] 1.2.1 Drain [6] 1.2.2 Panel prolongation [7] 1.2.3 Ridge of a double pitch roof [9] 1.2.4 Final suspension gutter [10] 1.2.5 Middle gutter - neck gutter [11]

All rights to alteration reserved. The last versions of documents is available on www.trimo.si 1.0 Mounting Instructions - Roofs made of Trimoterm SNV panels

1.1 General instructions and recommendations

When installing panels and details, dry wool must be put in. During the installation phase, the open details and roof panels must be protected against rainwater. Roof panels Trimoterm SNV can be screwed into roof load-bearing purlins made of steel, wood or concrete with a steel profile built in (Fig. 1). Fig. 1: Sub-structure types for fixing Trimoterm SNV panels

Minimal roof inclination αmin. = 3o (~5 %) and maximal allowed distance among supports are to be considered. The distance mentioned is determined in TRIMO technical documentation - Allowed distances among supports for Trimoterm SNV roof panels (Fig. 2). Required measures regarding roof inclination are determined in Section 5.4. Fig. 2: Span and inclination of the roof slope

Minimal width of panel placing on intermediate supports is 60 mm, and 40 mm on edge supports (Fig. 3). Fig. 3: Minimal support widths Intermediate support Edge support

Panels Trimoterm SNV have a protective foil on top and bottom faces in order to protect varnished surfaces from any possible damage that might occur during transport, handling or mounting. From the bottom face the foil is removed directly before mounting of a separate panel. The top foil is removed directly before conclusion of works. Where it is necessary the foil is removed already during mounting (for example on a longitudinal joint of two panels, under screws, flashing... (Fig. 4).

If panels are stored for a longer period of time, the foil should be removed latest after the expiry of three months. When panels are stored in the open air, they should be protected against the sun. If this is not done, removal of the foil can be difficult.

Fig. 4: Removal of a protective foil

No.10/ V-3.1/04-2010 1 In case panels are cut during mounting only the use of scissors and saws is permitted that do not heat the spot cut to a high temperature (Fig. 5). High temperature causes destruction of anti-corrosive protection in immediate vicinity of the spot cut. Therefore use of various grinding machines is prohibited for this purpose! All small metal particles that appear as a consequence of cutting and drilling should be immediately removed from panel surfaces or in worst case when day’s work has been finished.

Marking and scratching by wire nails or any other sharp objects that might damage the protective paint coating are prohibited.

Fig. 5: Recommended tools for panel cutting

Before each panel is mounted it should be checked if the end trapezoid placed on a neighbouring panel (Fig. 6) is completely clean. If not, it should be cleaned well!

On longitudinal sides there is mineral wool in the panels protected by self-adhesive tape. The tape need not be removed before mounting (Fig. 6a).

Fig. 6: Checking of trapezoidal panel section Fig. 6a: Self-adhesive tape on longitudinal edges

1.1.1 Panel transfer Use of vacuum grippers with a protective device is recommended for lifting and placing of panels on the place of building in - as it is shown in Fig. 7. On places where a vacuum gripper sucks the panel a protective foil should be removed from the panel before it is lifted. The procedure of panel placing on a roof is shown in Fig. 8.

Fig. 7: Vacuum gripper

Fig. 8: Assembly of panels using vacuum grippers

2 No.10/ V-3.1/04-2010 The use of mechanical grippers is also possible where panel placing is performed according to the stages presented in Fig. 9. In case of light panels manual transfer and mounting are also possible.

Fig. 9: Assembly of panels using mechanical grippers

1.1.2 Panel screwing Only screws made of stainless steel, stainless steel washers of a diameter 19 mm and EPDM seals can be used for screwing. Minimal screw thickness is 6.3 mm. Panels are fixed exclusively on trapezoid places. It is necessary to use spherical caps with seals (Fig. 10).

Fig. 10: Fixing method of Trimoterm SNV roof panels

Sph.cap

Seal

Self-cutting s crews of t ype A (Fig. 11) are u sed for fixing in wood purlins and thin steel purlins (steel thickness up to 3 mm). Self-cutting screws of type B (Fig. 11) are u sed for fixing i n steel p urlins in a thickness of 3 mm or more. Use of self-drilling screws of type C (Fig. 11) is allowed for fixing in steel purlins.

Fig. 11: Screw types Type A Type B Type C

In case of fixing onto a steel sub-construction by means of screws of type A and type B a hole of a suitable diameter should be drilled through a panel and sub-construction in accordance with the instructions of the screw producer. As an example, the table presents necessary drilled hole sizes of the producer SFS Stadler. In case screws of type C are used, no preliminary drilling of holes is permitted.

Table 1: Diameter of a borehole for a screw regarding thickness of a sub-structure

Sub-construction thickness [mm] Drilled hole dia meter [mm ]

2.0 - 3.0 (Type A) 5.00

3.0 - 3.9 5.05

4.0 - 4.9 5.35

5.0 - 5.9 5.65

6.0 - 10.0 5.80

>10.0 5.85

In accordance with the instructions of screw producer screw length depends on the thickness of Trimoterm panel and kind of sub-construction.

No.10/ V-3.1/04-2010 3 When tightening screws attention should be paid since they should not be too loose or too tight. Correct tightening is shown in Fig. 12.

Fig. 12: Correct fixing of tapping screws

Correct Too loose Too light

Before screws are tightened, the protective foil should be removed from these places (Fig. 13). Finally, the foil is removed before work on the roof is finished.

Fig. 13: Removal of the foil on a fixing place

1.1.3 Additional connecting screws of longitudinal joints Longitudinal joints among panels should be additionally connected by screws SXL2-S16-6.3x25 (producer SFS Stadler). Distance between neighbouring screws should not exceed 1.5 m (Fig. 13a).

Fig. 13a: Stitching screws on a longitudinal joint

B max. 1,5 m

L A max. 1,5 m

4 No.10/ V-3.1/04-2010 1.1.4 Required number of screws

The following facts influence the required number of screws: • wind power that depends on the location of a building and its height above the ground, • type of building (open, partially open, closed buildings), • position on a roof (edge or corner areas are exposed to gust of wind (Fig. 14), • panel colour and static system, • load-bearing capacity of one fixing place . Fig. 14: Characteristic fixing areas

Required number of screws is determined by an expert in statics in accordance with the standards and regulations of an individual country. The principle of screw arrangement with respect to the number calculated is presented in Fig. 15. It is recommended that a detailed calculation for a separate building is prepared by TRIMO technical department.

Fig. 15: Fixing arrangement

1 screw per panel on each purlin

2 screws per panel on each purlin

3 screws per panel on each purlin

4 screws per panel on each purlin

1.1.5 Sealing of longitudinal joint between panels

During mounting special attention should be paid to panel squeezing. There should be no air pocket in the longitudinal joint between neighbouring panels (Fig. 16)!

Fig. 16: Tight fitting of panels

No.10/ V-3.1/04-2010 5 Requirement for sealing of longitudinal joints between Trimoterm panels is discussed in detail in Section 5.4 - Sealing of Trimoterm panels with respect to construction-physical conditions. Generally it holds true that a sealing tape 3x15 mm should be additionally inserted for roof inclinations from 3° to 5°, i.e. under a cover trapezoid. Simultaneously the joint on the inner (warm) side should be sealed (Fig. 17).

Fig. 17: Panel laying PE seal 3x15mm

Seal When a seal (Fig. 17) should be inserted in the longitudinal joint on the inner (warm) side of the roof, it is manually inserted before the following panel is mounted, according to the method presented in Fig. 18.

Fig. 18: Putting seal in longitudinal joint

In case butyl or silicone putty should be inserted in the longitudinal joint, it is applied according to the method presented in Fig. 19 and Fig. 20. Putty is inserted in an individual joint before the following panel is mounted.

Fig. 19: Putting mastic seal in a panel Fig. 20: Detail of applying the mastic seal in a panel

Places where other sealing materials are inserted are evident from TRIMO Type details. Installing the Trimoterm SNV panels without seals is only allowed with the consent of the Trimo technical services.

1.2 Performance of some details 1.2.1 Drain

Before the first panel is placed, it should be checked if the geometry of the sub-construction is correct. The first panel is placed in the end axis of the building by adequate alignment in the eaves, rectangular to longitudinal axis of the building. Panels in the eaves should have a drain made in a length of 50 mm in order to prevent mineral wool moistening in a panel (Fig. 21). The drain is usually made by cutting off bottom sheet metal and mineral wool when the panel is made in TRIMO.

Fig. 21: Drain made panels

To be protected from spraying

6 No.10/ V-3.1/04-2010 Left and right drains are to be distinguished (Fig. 22).

Fig. 22: Left and right dripping edges

Left drain Right drain

In case of a double pitch roof the left and right drains enable simultaneous mounting on both panes of a roof from the same side (Fig. 23).

Fig. 23: An example of quick assembly of a saddle roof

Regardless of roof inclination the sheet metal of the panels in the drain should be additionally bent among trapezoids at an angle of 450 downward (Fig. 24). Bending should be performed by adequate plumbing tools.

Fig. 24: Bending of steel sheet in the eaves

1.2.2 Panel prolongation

When roof panes are long (maximal panel length is 14 m) longitudinal panel prolongation is required. In such case a detail of longitudinal prolongation is performed as it is shown in Fig. 25.

Fig. 25: Longitudinal prolongation of panels Fig. 26:Correct and incorrect panel assembly sequence

1 Pre-compressed expansion tape 2/10x15 mm 2 Sealing tape 3 x 50 mm 3 Screw kniping 4 Spherical cap 5 Connecting screw SFS SXL2 S16-6.3x25

No.10/ V-3.1/04-2010 7 • Correct sequence of panel mounting is presented in Fig. 26 - always from eaves to ridge! • Sequence of mounting including comments is presented in Figures from 27 - 33.

• Application of a seal on a purlin where • Mounting of the following panel with prolongation is performed, double pulin 200 mm overlap. or expanded single purlin is required • Before mounting the overlapping part (min. purlin width 100 mm). should be cleaned spotlessly. • Application of pre-compressed expansion • In the joint the mineral wool of the top seal 2/10x15 mm in two lines. panel should be tightly placed on the bottom panel.

Fig. 27: Fig. 28:

Pre-compressed expansion seal 2/10x15 mm Pre-compressed expansion seal 2/10x15 mm

1 1 PE seal 3x50 mm PE seal 3x15 mm

• Application of seal in longitudinal joint of a top panel. • Application of pre-compressed expansion Fig. 29: seal 2/10x15 mm in two lines. Fig. 30:

Pre-compressed expansion PE seal 3x15 mm 2 seal 2/10x15 mm 2 1 3 1

PE seal 3x15 mm

• Additional seal in longitudinal joint. • Placement of fourth panel; overlap 200 mm Fig. 31: Fig. 32: PE seal 3x15 mm 4 2 2

3 1 3 1

8 No.10/ V-3.1/04-2010 Performance of overlap screwing: • Fixing screws (detail A) in accordance with the calculation of screwing or minimally on each second trapezoid. • Connecting screws SFS SXL2-S16-6.3x25 (detail B) on each trapezoid - 50 mm above the panel end.

Fig. 33:

1.2.3 Ridge of a double pitch roof

Sequence of mounting: • Inner ridge mask (Pos. 2) is placed on ridge purlins. Sealing tape made of foamed polyethylene or foamed PVC 3x 15 mm (Pos. 6) is previously glued on this mask. • Gradually, Trimoterm SNV panels are placed and screwed on the left and right side. • On panel edge the top sheet metal is bent in a length of 30 mm as it is shown in Fig. 35. Bending should be performed by adequate plumbing tools. • Seal - profile filler SN negative is placed on panels - Pos. 5 (Fig. 36). • Panel masks (Pos. 3) are placed on profile filler, onto which butyl tapes (Pos. 7) are fixed. • Empty places under a ridge tile are filled by compressible mineral wool (Pos. 4). • Finally, a ridge tile is placed (Pos.1). Ridge tiles are longitudinally prolonged by a plumbing joint or overlap of min. 200 mm and sealed by neutral silicone putty inserted in minimally three lines. • Ridge tile should be fixed on each second panel fold by screws ɸ 6.3 x 25 mm.

Fig. 34: Ridge detail on a saddle roof

1 Ridge tile 2 Ridge mask 3 Panel mask (not standard) 4 Thermal insulation 5 Profile filler SN - negative 6 Sealing tape 3 x 15 mm 7 Butyl tape 2 x 6 mm (not standard) 8 Screw kniping

Fig. 35: Preparation of SN-panel for istalling profile Fig. 36: Profile filler SN - negative filler SN - negative 30

90°

No.10/ V-3.1/04-2010 9 1.2.4 Final suspension gutter

Sequence of mounting: • Trimoterm SNV panels are placed from the side conditioned by the panel drain. In case snow guards are mounted on the building, fixing in the end purlin is performed through a snow guard (Pos. 15). A seal made of foamed EPDM in a thickness of 2 mm should be additionally inserted between a snow guard and Trimoterm SNV panel. • Sheet metal in the drain should be additionally bent at an angle of 450 in a length of 10-15 mm (Fig. 24). • External panel mask (Pos. 6) is riveted from the external side. • In Trimoterm SNV panel, gutter handles are placed in the filling material under the top. They are fixed on the top sheet metal by two screws. Spherical caps are used for screwing. While arranging handles special attention should be paid to their length since they assure gutter inclination. • Gutter (Pos. 2) is placed on handles and fixed by suitable bending of fixing sheet metal on handles. • Place between a façade panel and roof panel Trimoterm SNV is filled by mineral wool of low specific weight (Pos. 7) from the inner side. • Inner mask (Pos. 8) is riveted from the inner side onto which sealing tape made of foamed polyethylene or foamed PVC 3 x 15 mm (Pos. 6) should be previously fixed. 1.2.5 Middle gutter - neck gutter

Fig. 37: External gutter detail 17 16 9 12 13 15 14

5 2

1 10 8 11 6 7 3

1 Gutter holder 9 Screw kniping 2 Gutter 10 Sealing tape 3 x 15 mm 3 Outlet connection 11 Blind rivet 4 Outlet pipe 12 Spherical cap 5 Gutter mask 13 Snow guard 6 External mask 14 Sealing tape 7 Thermal insulation 15 Screw kniping 8 Inner mask

10 No.10/ V-3.1/04-2010 1.2.5 Middle gutter - neck gutter

Sequence of mounting: • First the inner mask of the neck gutter (Pos. 3) is placed on an end purlin. Seal made of foamed polyethylene or foamed PVC dim. 6x15 mm (Pos. 10) is fixed on the mask of neck gutter. • Load-bearing handles of the gutter (Pos. 2) are arranged over the mask. Correct arrangement assures adequate inclination that is required for water discharge. • Mineral wool is placed on the mask of the neck gutter (Pos. 4). • Gutter (Pos. 1) is placed on handles and fixed by adequate bending of fixing sheet metal on handles. • Trimoterm SNV panels are placed from the side, conditioned by the panel drain. • Sheet metal in the drain should be additionally bent at an angle of 450 in a length of 10-15 mm (Fig. 24). • Panels are fixed into load-bearing purlins over spherical caps. • From the bottom side masks (Pos. 5) are also screwed on the drain part under which profile filler SN-positive (Fig. 39) is inserted.

Fig. 38:Detail of a middle gutter

12 11 10 5 6 9

1 2

1 Inner gutter - neck gutter 4 2 Gutter bearer 3 Inner mask 4 Thermal insulation 3 5 Mask 7 6 Screw kniping 7 Outlet connection 8 8 Outlet pipe 9 Profile filler SN - positive 10 Sealing tape 6 x 15 mm 11 Screw kniping 12 Spherical cap

Fig. 39: Profile filler SN - positive

No.10/ V-3.1/04-2010 11 Published by: TRIMO d.d., Design: Meta Gabrijel, Anita Kostanjevec, Photography: Janez Erjavec, Printed Tiskarna Petrič, Ci rculation: 3000/EN, 04/2010