System of INVISIO Vertical Façades

Technical document No. 21 / Version 3 / July 2006

CONTENT

1.0 Technical Description of a Vertical Façade System With Secret Fixing - INVISIO [1] 1.1 General [1] 1.2 Panel profile [2] 1.3 Panel composition [2] 1.4 Technical data [2] 1.4.1 Basic technical data [2] 1.4.2 Coatings [3]

2.0 Design Procedure [4] 2.1 Panel tickness selection [4] 2.2 Structural design data [4] 2.3 Fixing methods [4] 2.3.1 Intermediate support [5] 2.3.2 Bottom end support [5] 2.3.3 Panel to panel junction [6] 2.3.4 Top end support [6] 2.4. Panel fixing [7]

3.0 Assembly Instructions [8] 3.1 Installation recommendations [8] 3.2 Sealing [9] 3.3 Lifting methods [10] 3.4 Installation details [11] 3.4.1 Fixing to an intermediate support [11] 3.4.2 Connection to the main beam [12] 3.4.2.1 Connection of a façade to the main beam [12] 3.4.2.2 Drip flashing extension detail [13] 3.4.2.3 Drip flashing cut for water outlet [13] 3.4.3 External corner [13] 3.4.4 Corners with a pre-fabricated corner panels [15] 3.4.5 Extension of a façade [16] 3.4.6 Parapet [17] 3.4.7 Window installation [17]

4.0 Packing, Transport and Storing [19] 4.1 Packing [19] 4.2 Transport [19] 4.3 Storage [20]

5.0 Maintenance [21] 5.1 Annual checking of a façade [21] 5.2 General recommendations [21]

All rights to alteration reserved. The last versions of documents is available on www.trimo.si

No.21/V-3/07-2006 1

0

1.0 Technical Description of the Vertical Façade System with Secret Fixing - INVISIO 1.1 General

1 Trimoterm FTV INVISIO panel 2 Self-tapping screw _x_ 3 Supportnig element 4 Distance tube 5 Sealing tape (factory applied)

Fig. 1: Elements in a joint Fig. 2: Panel assembly

Fig. 3: Detail of fixing to supports made of various materials Fig. 4: Detail of fixing the INVISIO façade

The basic of the INVISIO vertical façade system consists of a Trimoterm FTV INVISIO façade panels standard module width of 1000 mm with method secret fixing (Fig. 1 and 2). Trimoterm FTV INVISIO panels are fixed through a side lap joint to steel cladding rails or concrete structure with integrated steel profile by means of a special supporting element (Fig. 5). The supporting element is intended for the load distribution over a large overlying surface. It is made of stainless steel in a thickness of 2 mm and is 160 mm long. The longitudinal edge of the neighbouring panel covers these elements and panel fixings so that they are not visible on the façade accomplished. A fixing section is shown in Fig. 4. Distance tube (Fig. 1 and 4) is to be inserted into the panel joint where secret fixing is used. Requirements for other fixing types are stated in Section 2.

The INVISIO system of vertical façades has excellent technical properties, a long life span and allows the greatest creative freedom in façade design. The range of applications for INVISIO vertical façades is extremely wide. They are suitable for business, trade, factory buildings as well as buildings constructed for representative purposes.

Fig. 5: Supporting element

WARNING: For side lap panel fixing stainless steel fixing screws WITHOUT washer in combination with an supporting element and distance tube are used!

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Side A

Side B

1.2 Panel Profile

Fig. 6: Possible forms of Trimoterm FTV INVISIO façade panels

1.3 Panel Composition

Table 1: Technical data for Trimoterm FTV INVISIO façade panels

Steel sheet on the external side of a panel can be performed in a standard, micro-lined, smooth profile or multi vario; on the inner side in a standard, smooth or v - profile. With respect to the profiles of steel sheet the following types of Trimoterm FTV INVISIO panels (Fig. 6) are possible.

1.4 Technical Data

1.4.1 Basic Technical Data

Trimoterm FTV INVISIO fireproof panels consist of two shallow profiled, coated steel sheet faces in thicknesses of 0.5 mm, 0.6 mm or 0.7 mm. The steel sheet is bonded to the panel core made of non-combustible mineral wool lamellas of class A1 (EN 13501-1). All three layers make a solid panel in a thickness of 60 - 200 mm.

A protective polyethylene foil is applied on the panel surface to protect it during handling, transport and assembly. The foil is removed after the assembly has been completed.

Panels can be up to 14 m long.

Profile Type Side A Side B

S - profile • •

V - profile • •

Smooth • •

Micro-lined •

Multi vario •

Side A is usually the external side of a panel

S - profile

V - profile

Smooth profile

Micro-lined profile

Multi vario profile

Technical data FTV INVISIO FTV H 60 FTV H 80 FTV H 100 FTV H 120 FTV H 150 FTV H 200

Panel thickness [mm] 60 80 100 120 150 200

Weight FTV H [kg/m2] Fe 0.6 / Fe 0.6 17.7 20.1 22.5 24.9 28.5 34,5

U Thermal conductivity [W/m2K] * (EN ISO 6946) 0.61 0.47 0.39 0.32 0.26 0,20

Fire resistance class(acc to EN 1364-1, EN 13501-2) EI 60 EI 90 EI 120 EI 180 →

Combustibility of insulant core (acc to EN 13501-1) Non - combustible, class A1

Rw Sound reduction [dB](EN ISO 140-3) 30 32 →

Cover width [mm] 1000

Panel length [m] up to 14

* Values measured on the panels Trimoterm FTV 1000 STANDARD.

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1.4.2 Coatings

Two types of steel sheet coatings are used: - Protection based on polyester marked as SP − standard protection. - Protection based on polyvinyl idenfluoride marked as PVDF (available on request).Steel sheet is preliminary hot galvanised and colour pre-coated. Thickness of a zinc layer is 275 g (Zn)/m2 (EN 10326, EN 10327) while colour coating is performed by ˝Coil Coating˝ procedure. This denotes painting between cylinders and drying in the furnace at a temperature of minimum 200°C.All possible shades of the RAL scale are possible. Standard colour shades of Trimoterm INVISIO panels (valid for protection based on polyester - SP) are: - RAL 9002 - grey while, - RAL 9006 - aluminium white.Other paint coatings are available upon a special request (e.g. based on PVC, silicone, polyester, Corus HPS200, Corus Prisma etc.) that may have other properties.

Table 2: Basic properties of an individual type of protection

TYPE OF CORROSION PROTECTION SP SP PVDF PVDF+ PUR PVC(P) PVC+F

Corrosion classification [DIN 55928-8] II III III III III III III

Total organic thickness (my) [EN 13523-1] 15 25 25 35 50 175-200 120-200

Corrosion resistance category **

External EN 10169-2 — RC3 RC3 RC4 RC5 RC5 —

Internal EN 10169-3 CPI2 CPI3 — CPI4 CPI5 CPI4 CPI5

Type

s of

out

door

at

mos

pher

e /

co

rrosiv

ity c

ateg

ory

[E

N 1

0169

-2]

Rural - normal C2 — ••• ••• ••• ••• •*** —

Urban and industrial C3 and C4 — •• ••• •••• ••• •*** —

Martitme0 < 10 km from sea C5 - M — — •• ••• ••• •*** —

10 < 20 km from sea C4 — • •• ••• •••• •*** —

Severe industrial C5 - I — — — • • •*** —

Type

s of

indo

or a

tmos

pher

e /c

orro

sivity

cat

egor

y

[EN

101

69-3

]

Non-corrosive atmosphereRoutine upkeep - normalLow humidity

Ai1-40°Cà25°C

0% - 40%*•• •• — •• ••• •• •••

Non-corrosive atmosphereRoutine upkeep - normalMedium humidity

Ai20°Cà25°C40% - 60%*

•• •• — •• ••• •• •••

Non-corrosive atmosphereNon-intensive cleaningHigh humidity

Ai30°Cà25°C60% - 80%*

— • — •• ••• •• •••

Slightly corrosive atmosphereNon-intensive cleaningHumid (risk of condensation)

Ai40°Cà30°C60% - 80%*

— — — •• ••• •• •••

Corrosive atmosphereIntensive cleaningVery humid (frequent risk of condensation)

Ai50°Cà35°C80% - 90%*

— — — — — — ••

Highly corrosive atmosphereHighly intensive cleaningSatureted (permanent risk of condensation)

Ai60°Cà40°C90% - 100%*

— — — — — — —

Temperture resistance (°C) +70 +80 +110 +110 +110 +70 +70

UV resistance category [EN 13523-10] — Ruv3 Ruv4 Ruv4 Ruv4 Ruv2 —

Flexibility •• •• ••• •••• •••• •••• ••••

Staining resistance •• ••• •••• •••• •••• •• ••••

Note: •••• suitable without reservations ••• very suitable •• suitable • suitable with reservations/contact Trimo - unsuitable

* Temperature must not fall below condensation point when cleaning. See table for details: Condensation point temperature is shown at specific ambient temperature and relative humidity. In case of cooling down, working temperature must be 3° C above condensation point. ** Corrosion categories are defined by climatic conditions of external and internal building environment. Standard external climatic conditions: C1, C2, C3, C4, C5-M and C5-1. Example: outside atmosphere C3 --> steel sheet of corrosion category RC3 or RC4 is selected.*** Recommended for use North of 45th parallel latitude and maximum temperature 70° C.

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Fig. 7: Characteristic fixing areas

CENTRAL FAÇADE AREA: A - Intermediate support B - Bottom end support C - Top end support E - Panel to panel junction

EDGE FAÇADE AREA: A*- Intermediate support B*- Bottom end support C*- Top end support E* - Panel to panel junction

* Usually the edge area of a façade is up to 2 m wide.

WARNING: Secret fixing at end supports is not sufficient. Usually fixing through a panel is necessary; according to details it should be covered by flashing. A fixing calculation is necessary to determine a fixing method on individual places. Trimo’s technical department can prepare such calculation required.

With respect to the factors stated various loading appears on the façade. The fixing method should be adjusted to accommodate them. Characteristic fixing areas are marked in Fig. 7. Tables for calculation of fixings are stated in the Appendix.

2.3 Fixing Methods

Major factors that influence a fixing method:

- Wind loading: - basic wind loading, - height of a façade above the ground, - position on the façade (edge areas in a width of up to 2 m).

- Temperature loading: - Colour of a panel (group I, II, III).

- Static system of panel lying: - Single-, double-, multiple-span.

2.0 Design Procedure

2.2 Structural Design Data

Max. spans allowed are determined in relation to the selected panel thickness, loads and support width.

Max. span are stated in the Appendix to the Instructions and should be used only as a guide. Exact span should be calculated for each individual building. Trimo’s technical department can prepare a calculation of max. spans alowed.

2.1 Panel Thickness Selection

With respect to the client’s or project requirements or in accordance with the legislation appropriate thickness of Trimoterm FTV INVISIO panel shall be selected. Thickness has a direct influence on the load-bearing capacity of the panel, thermal insulation of the façade and heat stability of the structure.

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2.3.1 Intermediate Support

Fig. 8: Intermediate support fixing detail

1 Self-tapping screw ___x___ 2 Supporting element 3 Expansion element 4 Self-tapping screw ___x___ 5 Distance tube

* Fixing method in the edge area is usually up to 2 m wide. The necessity of additional fixing is determined by fixings calculation. Such fixing is usually necessary in the edge area – see Structural Design Data for Trimoterm FTV INVISIO – Type B.

2.3.2 Bottom End Support

Fig. 9: Bottom end support fixing detail

1 Panel beam-closing element 2 Dripping edge of a panel 3 Sealing tape 30 x 20 4 Anchor bolt 5 Self-tapping screw 6 Self-tapping screw 7 Beam of dripping edge flashing 8 Dripping edge flashing support 9 Blind rivet ___x___ 10 Sealing tape EPDM 2 x 30 x 100 11 Panel beam-closing element – top 12 Sealing tape 3 x 15 13 Blind rivet 5.2 x ___ 14 Supporting element 15 Distance tube

*Fixing method in the edge area – usually up to 2 m wide. The necessity of additional fixing is determined by fixings calculation.

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2.3.4 Top End Support

h ≤ 800 mm (when loading by wind up to 0.8 kN/m2 or with respect to static calculation)* Fixing method in the edge area is usually up to 2 m wide. The necessity of additional fixing is determined by fixing calculation.

1 Parapet cap 2 Closing profile3 Blind rivet ___x___4 Self-tapping screw ___x___5 Flashing 6 Self-tapping screw ___x___7 Roof flashing

Fig. 11: Detail of fixing to the top end support

15 Roof mask - gable – A16 Corner profile 17 Self-tapping screw18 Support flashing 19 Support flashing 20 Distance tube

8 Tapping screw ___x___9 Thermal insulation10 Butyl sealing tape 2 x 611 Sealing tape 3 x1512 Supporting element13 Blind rivet 5.2 x___14 Roof mask - gable - B

2.3.3 Panel to Panel Junction

Fig. 10: Panel to panel junction detail

1 Panel beam-closing element 2 Dripping edge of a panel 3 Sealing tape 3 x 15 4 Self-tapping screw5 Thermal insulation6 Bulb tite rivet 5.2 x 19.1 7 Panel mask 8 Blind rivet 4 x 10

* Fixing method in the edge area – usually in a width of up to 2 m. The necessity of additional fixing is determined by fixing calculation.

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L

16

3

10

2.4 Panel Fixing

Only screws made of stainless steel without round washers and with specially designed supporting elements (Fig. 5) can be used for fixing panels in the joint. Minimal screw thickness is 6.3 mm (Fig. 12 − Item 2). For fixing through a panel (end supports) only screws made of stainless steel (Fig. 13 − Item 4) should be used with 19 mm stainless steel washers and bonded EPDM seal.

Fig. 12: Façade fixing detail Fig. 13: Detail of fixing through a panel

1 Trimoterm FTV INVISIO panel 2 Self-tapping screw ___x___ without washer3 Adjusment element4 Self-tapping screw ___x___ 5 Distance tube

The length of a screw depends on the thickness of Trimoterm FTV INVISIO panel and type of substructure in accordance with the screw producer instructions (Table 3). Care should be taken when tightening screws to ensure they are not too loose or too tight. A distance tube (Fig. 1, 12 and 14) is to be inserted in a joint of a panel, or fixing place. The length of a distance tube depends on the panel thickness (Table 3). The distance tube is an item available from Trimo.

Table 3: Type and length of a screw depending on panel and substructure thickness

Panel thickness (mm) 60 80 100 120 150 200

Fixing thickness for end support 60 80 100 120 150 200

6.3 x L (Fig.13) 90 100 127 152 178 230

Fixing thickness 47 67 87 107 137 187

6.3 x L (Fig.12) 64 (7)...76 90 (13)...100 100 (3)...115 127 (10)...152 152 (5)...178 215

6.5 x L 64 90 115 127 152 215

Table 4: Distance tube lengths depending on panel thickness

Panel thickness (mm) 60 80 100 120 150 200

Length of a distance pipe L (mm) 44 63 83 103 133 183

Fig. 14: Distance tube Fig. 15: Fixing screw types

type A type B type C

Notes:- All dimensions are stated in millimetres (mm).- Screws with a diameter of 6.5 mm are used for a substructure thickness up to 3 mm.- Data in brackets referring to screws 6.3 x L are thicknesses of the steel structure into which they can be fixed using the first screw length stated. For a thicker substructure the second length stated applies.- Lengths apply to screw types that are similar to those produced by SFS Stader, END- Self-tapping screws of type A (Fig.15) are used for fixing to thin steel purlins (steel thickness up to 3 mm).- Self-tapping screws of type B (Fig.15) are used for fixing to steel purlins (steel thickness of 3 mm and more).- Self-drilling screws of type C (Fig.15) are also used for fixing to steel purlins (steel thickness up to 12 mm).

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3.0 Assembly Instructions

3.1 Installation Recommendations

Trimoterm FTV INVISIO panels are suitable for vertical façades (Fig. 16).

Fig. 16: FTV INVISIO cladding system

Fig. 17: Width of a support for panel overlying

Minimal intermediate support width for panels is 60 mm and on the end support 40 mm or depending on the static calculation (Fig. 17). Mineral wool in longitudinal sides of panels is protected by a self-adhesive tape (Fig. 18a). The tape does not need to be removed before the assembly.

End support Intermediate support

Fig. 18a: Presentation of protection on panel sides

Table 5: Borehole diameter depending on substructure thickness

Substructure thickness [ mm ]

Borehole diameter [ 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

Screws of types A and B are used for fixing to a steel substructure; a hole of a suitable diameter is to be drilled thought a panel and substructure in accordance with the instructions of the screw producer. Table 5 presents examples of required hole sizes by the producer SFS Stadler. Preliminary drilling of boreholes is not allowed for screws of type C.

No.21/V-3/07-2006 9

Fig. 18b: Removal of a protective foil

If panels are stored for a longer period of time, the foil is to be removed after three months at the latest. When storing panels in the open air, they are to be protected against the sun; otherwise removal of the foil may be difficult.

When panels are cut during the assembly, only scissors and saws that do not heat the cutting edge to a high temperature (Fig. 19) may be used. High temperature can destroy the anticorrosive protection in the immediate vicinity of a cut. Therefore use of grinding machines is prohibited for such purposes! All small metal particles that appear as a consequence of cutting and drilling are to be immediately removed from the surface of panels, or at the latest when the daily work has been finished. Welding in the direct vicinity of panels may damage the anticorrosive protection.

Fig. 19: Devices allowed for panel cutting

Marking or scratching with nails or similar sharp objects that can damage the protective coat layer is prohibited.

3.2 Sealing

During the assembly special attention is to be paid to tight fitting of panels. There should be no space in the longitudinal joint between the neighbouring panels (Fig. 20).

Fig. 20: Tight fitting of panels

Trimoterm FTV INVISIO panels have a protective foil fixed on the top and bottom sides to protect its varnished surfaces against any possible damage during transport, handling and assembly. The foil should be removed from the internal side before the assembly of an individual panel. The foil on the external side should be removed immediately after the work has been finished. If necessary, the foil can be removed during assembly (e.g. in a longitudinal joint of two panels, under screws, flashing etc. Fig. 18b).

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Sealing of longitudinal joints between Trimoterm FTV INVISIO panels is described in detail in Trimo Technical Document No. 3 Sealing of Trimoterm FTV panels is carried out regarding construction and physical conditions. When it is necessary that a seal (Fig. 21 and 22) is inserted in the longitudinal joint in the inner (warm) façade side; the seal is to be inserted at the stage of panel production. As a rule, a panel is delivered with a seal inserted.

3.3 Lifting Methods

The assembly begins in the end axis of an individual façade. Before the panels instalation begins, it is necessary to check the geometry of the substructure for accuracy, which is a pre-condition for quality performance. If there are irregularities in the geometry it is necessary to correct them by suitable cutting of the beginning and closing panels. The panels are leaned on the foundation angular steel that partly transfers vertical loads.

For vertical façades the use of vacuum grippers (Fig. 25) is recommended for lifting the panels and putting them in place at the site of installation. On places where a vacuum gripper sucks on the panel, the protective foil should be removed from the panel before lifting.

The use of mechanical grippers (Fig. 26 and 27) is also possible for vertical façades. Dimensions of the gripper and pins are to be statically determined relating to thickness and weight of panels.

Fig. 25: Mechanical grippers

Fig. 22: Method of inserting a seal in a panel

Seal

If butyl or silicone mastic seal is to be placed into the longitudinal joint, it should be applied in a way presented in Fig. 23 and 24. Mastic seal is placed in an individual joint before the assembly of the following panel.

Fig. 23: Insertion of mastic seal in a panel

Fig. 21: Position of a seal

Fig. 24: Detail of inserting mastic seal in a panel

Points of installation for other sealing materials are evident from Trimo Standard details.

No.21/V-3/07-2006 11

Fig. 26: Lifting of panels using vacuum grippers Fig. 27: Lifting of panels using mechanical grippers

Grippers with φ 12 mm pins should be used for lifting panels of 60, 80, 100 mm thickness, and grippers with φ 16 mm pins are used for panels thicker than 100 mm (Table 6). Boreholes for pins are made on spots that are subsequently covered by flashing.

FTV INVISIO Gripper type

1 60 PVF - 80

2 80 PVF - 80

3 100 PVF - 100

4 120 PVF - 120

5 150 PVF - 150

6 200 PVF - 200

Table 6: Gripper types for individual thickness of a panel

* PVF - 100 – Gripper for Trimoterm FTV INVISIO - 100 vertical façade

3.4 Installation Details

3.4.1 Fixing to an Intermediate Support

Panels are fixed to intermediate supports through side lap joint using specially designed washers (Fig. 5 and 28). When fixing by two screws is necessary in the edge area, a purlin is upgraded by an expansion element (Fig. 29 and 30). A distance tube should be inserted in the panel, on fixing spots in the joint (Fig. 1, 14 and 28). Length of the distance tube depends on panel thickness (Table 4). Sequence of panel fixing to an intermediate support: - Drilling of a borehole for a screw in a joint through a panel and substructure (diameter of a bore hole is deter mined in Table 5). - Drilling of φ 10 mm borehole through steel sheet on the external side of the panel and wool up to the sheet metal on the rear side. - Insertion of a distance tube (Fig. 14) into the panel. A cut in the distance tube is parallel to the external edge of the panel (Fig. 4). - Insertion of the underlying element in the joint and fixing of the panel onto the substructure. A distance tube enables correct and even fixing of all panels to the joint.

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Assembly sequence (Fig. 31): - Before assembly of an individual panel a cut should be made in the mineral wool approx. 2 mm wide, 30 mm from the external side and 30 - 35 mm deep. The cut is needed for the performance of a drip flashing (Fig. 31). It is to be made by a circular saw or a knife using a suitable guiding device. - The panel beam-closing element (Item 8) is riveted to the concrete main beam and serves as a horizontal levelling. - Sealing tape 3 x 15 is fixed to the Item 8. - The dripp flashing (Item 7) is put under the first panel that is mounted. The panel is put on a suitable place, leaned on the angular steel (Item 8), levelled relating to the substructure and fixed. The number of screws for fixing through a panel is determined by calculation.- When the assembly has been finished, the dripp flashing support (Item 10) is riveted to the panels, i.e. one support to each panel. Sealing tape EPDM 2 x 30 x 100 mm is preliminary fixed to each beam of the flashing and riveted by two 4 x 8 rivets (Item 4). - Flashing of the dripping edge (Item 6) is put on the beam of the flashing support and then fixed by a 4 x 8 rivet (Item 4).

Fig. 28: Detail of fixing to an intermediate support Fig. 29: Detail of fixing to a too short intermediate support

Fig. 30: View of fixing to an intermediate support

1 Self-tapping screw ___ x___2 Supporting element3 Expansion element4 Self-tapping screw 6.3 x___5 Distance tube

Type A Type B

3.4.2 Connection to the main beam

3.4.2.1 Connection of a façade to the main beam

The assembly begins in the buildings end axis. Before the first panel is fixed, the accuracy of the substructure geometry and the façade length should be checked. If the length is 100 - 200 mm shorter than the multiplier of the Trimoterm FTV panel (module width is 1000 mm), it is recommended first to cut the panel longitudinally to a suitable length so that the façade begins and ends by approximately the same width of the panel.

Fig. 31: Detail of a connection to the main beam

1 Self-tapping screw 2 Trimoterm FTV INVISIO panel 3 Sealing tape 3 x154 Blind rivet 4 x 8 – stainless steel 5 Sealing tape EPDM 2 x 30 x1006 Dripping edge flashing7 Dripping edge of a panel8 Supporting angle rail 9 Anchor bolt 10 Dripping edge flashing support

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3.4.2.2 Drip Flashing Extension Detail

Fig. 32: Drip flashing extension

Adhesive mastic seal

Overlap

Drip flashing extension

The extension is achieved by a 50 mm overlap using adhesive mastic seal in three lines − as shown in Fig. 32.

3.4.2.3 Dripp Flashing Cut for Water Outlet

Fig. 33 presents a water outlet that is made during the assembly. The rear part of the flashing should be cut out at approx. every 2 m.

Fig. 33: Drip flashing cut for water outlet

Drip flashing

The rear part of the drip flashing should be cut out at approx. every 2 m

3.4.3 External Corner

Fig. 34: Detail of a external corner

1 External corner flashing2 Sealing tape EPDM 2 x 47 3 Sealing tape 3 x 15 4 Thermal insulation 5 Self-tapping screw ___x___ 6 Blind rivet 4 x 10 7 Corner beam

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Assembly sequence: - External corner flashing can be sharp-edged or rounded-off with a radius R = 80 mm (Fig. 34). - A beam panel beam-closing element is fixed to the main beam using anchors (Fig. 35). The foundation dripping edge of the panel is then riveted to it. The closing element in the corner is carried out by a 20 mm overlapping (Fig. 36). It is fixed by means of stainless steel blind rivet 4×8 mm. The joint is sealed using sealing-adhesive mastic seal. The vertical line is sealed in the central and rear part of the dripping edge. - The dripping edge should be cut in the corner when assembling the rounded-off corner flashing. - First, an angular steel is placed on the façade profiles and temporary fixed (e.g. welded) to the façade profiles. A sealing tape made of foamed polyethylene or foamed PVC 3 x 15 mm (Fig. 34 - Item 3) is pre-applied put on it. - A panel is placed on the first façade and fixed. The second panel is placed slightly over the surface of façade profiles of the first façade. The space between the panels should be filled with mineral wool of good compression (Fig. 34 - Item 4). - Rounded-off corner masks should be cut 15 mm at an angle of 45° (Fig. 34) on the second panel during the assembly. - A beam of the corner mask is riveted from the foundation to the parapet by at least 3 rivets/m before the external corner mask is assembled. Sealing tape EPDM 2 x 30 (Fig. 37 and 38) is pre-applied to the beam of the corner mask. - External corner flashing of the panel is placed in the corner and riveted by min. 2 rivets/m on each edge (Fig. 39 and 40). The corner flashing is levelled with the bottom edge of the foundation dripping edge and riveted from the side to the beam of the corner mask by min. 2 rivets/m. The corner flashing should be cut in the drip section because of the dripping edge. Extension of the mask on the external side should be carried out by an overlap of minimum 50 mm (Fig. 41). - Riveting of flashing in the bottom dripping edge follows. The flashing in the bottom dripping edge is to be laid up to the corner flashing. Preliminary, the flashing is to be cut at an angle of 15°.

WARNING: Some form of protection (e.g. cardboard, etc.) should be placed between the drilling machine and the façade panel when drilling and riveting the flashing to prevent damage to the panel.

Beam of a corner mask

Blind rivet

Panel beam-closing element

Dripping edge of a panel

Flashing beam

Fig. 37: Performance of a façade corner Fig. 38: Flashing beam

EPDM seal

Flashing beamRivetsMain beam

Fig. 35: Performance panel beam closing element in the corner

Panel beam - closing element

Anchor bolt

Dripping edge

Main beam Dripping edge

Adhesive mastic seal

Fig. 36: Performance of a dripping edge in the corner

Blind rivet 4 x 8 – stainless steel

Cross-section A - A

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Fig. 39: Fixing of a corner flashing in a panel

External corner element of a panel

Fig. 40: Performance of flashing in dripping edge

Drip flashing

Fig. 41: External corner flashing

External corner flashing

Blind rivet 4 x 8 – stainless steel

Overlap 50 mm

3.4.4 Corners with a Pre-fabricated Corner Panels

A pre-fabricated rounded off (Fig. 42) or sharp-edged longitudinal corner can be made of Trimoterm INVISIO panels (Fig. 42). The corner is fixed using a bespoke aluminium fixing profile to the concrete or steel structure. The sum of side lengths in the rounded-off corner is max A + B = 980 mm.

1 HF3 aluminium profile 2 Sealing tape EPDM 6 x 30 3 Self- tapping screw __x__ 4 Thermal insulation 5 Fixing element6 Self-tapping screw __x__ 7 Bulb tite rivet __x__ 8 Sealing tape 3 x 15 9 Corner element 10 Bulb tite rivet __x__

Fig. 42: Detail of a preformed rounded-off corner

Notes: - At least 50 mm of the longitudinal panel edge should be cut on both sides of the rounded-off corner, as well as on the edges of both neighbouring panels. - Possible angle of corner bending α = 75° - 165°. - Rounded-off corners can be carried out only on façade panels that have micro-lined sheet metal on the external side.

Fig. 43 presents the assembly of a parapet of a rounded-off corner and a dripping edge. The parapet of the rounded-off corner is inserted in the top of the rounded-off corner and sealed twice by adhesive mastic seal. Then the parapet cap is inserted and at least 50 mm of the parapet of the rounded-off corner is covered. Fixing of the parapet cap and the parapet of the rounded-off corner follows. Flashing of the corner dripping edge is inserted in the longitudinal flashing of the dripping edge and fixed by 4 x 8 - stainless steel blind rivets.

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Fig. 43: Performance of a rounded-off corner parapet

1 Parapet of a rounded-off corner 2 Flashing of a dripping edge in the corner 3 Mastic seal4 Self-tapping screw __x__5 Blind rivet __x__

3.4.5 Extension of a Façade

For higher façades a façade extension detail is required (max. panel length is 14 m). Extension is carried out on an expanded or double purlin (Fig. 44). Minimum width of a support shall be 120 mm.

Assembly sequence (Fig. 44): - First, sealing tape (Item 3) is applied to the façade profiles. The bottom row of Trimoterm FTV INVISIO façade panels is fixed. - Panel beam-closing element (Item 1) is riveted. Soft mineral wool (Item 5) should be inserted between the panel beam-closing element and the bottom panel. - Before the assembly of each top panel begins, cuts should be made in mineral wool of a dripping edge in a minimum width of 2 mm, 30 mm from the external side and 30 - 35 mm deep, to accomodate drip flashing. - When assembling the first top panel a dripping edge (Item 2). is placed underneath. The panel with the dripping edge is placed in a suitable position, leaned on support angle rail (Item 1), levelled relating to the substructure and fixed. Care should be taken to ensure the screw does not make a hole in the dripping edge. The dripping edge is riveted to the top edge of the bottom panel. Extension of the dripping edge is to be carried out by an overlap and then fixed by mastic seal (Fig. 32). - An extension mask is put on the dripping edge (Item 7) and fixed to the bottom edge of the top panel by a 4 x 8 blind rivet (Item 8).

Fig. 44: Detail of façade extension

1 Beam of the panel-closing element 2 Drip flashing3 Sealing tape 3 x 15 4 Self-tapping screw 5 Thermal insulation 6 Bulb tite rivet 5.2 x 19.1 7 Drip flashing mask 8 Blind rivet 4 x 10

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3.4.6 Parapet

Assembly sequence:- Panels are side lap fixed by use of supporting elements (Item 1) and distance tube (Item 5). - Closing profiles, 2 mm thick (Fig. 45 − Item 4) are riveted to the top of panels in their longitudinal direction. - A parapet cap (Item 3) is put on the closing profile; the cap is to be fixed to the top of the closing profile by self-tapping screws.

Fig. 45: Parapet detail Fig. 46: View of the parapet and valley gutter

1 Self-tapping screw 2 Blind rivet 3 Sealing tape 4 Parapet cap 5 Parapet cap carrier 6 Supporting element7 Distance tube8 Self-tapping screw

3.4.7 Window Installation

Before installing a window the bottom and top dripping edges are arranged as shown in Fig. 47. An 80 mm slot should be made in the top corner of the opening. Fig. 48 shows the installation of the top dripping edge in the slot (Detail A). A flap of 5 mm in height should be made in the top dripping edge to prevent water penetration from the end of the dripping edge into the panel. At the end of the slot the opening is sealed by adhesive mastic seal. Fig. 50 presents Detail B from Fig. 47. The bottom dripping edge should be adjusted to the form of the window opening. Flaps are made in a height of approx. 15 mm. A critical section on the part cut should be urgently sealed by sealing adhesive putty up to a height of 5 mm.

Fig. 47: Performance of window dripping edges and flashing

Closing flashing support

Flashing support of the top dripping edge – point-wise or in complete length

Clossing flashing support

Blind rivet 4 x 8 – stainless steel

Bottom dripping edge

Due to condensation problems it is recomended that downpipes be insulted

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Before the window is assembled, the bottom dripping edge should be fixed to the beam of the window opening fixed by stainless steel blind rivets 4 × 8 mm. Before the assembly of the bottom dripping edge the beam of the bottom dripping edge should be riveted by two rivets per meter, if there is a point-like element or at each 30 cm, if the element’s length equals the length of the opening. Fig. 49 presents closing of the bottom dripping edge from the end. The hole is closed by the over-dimension of the flashing. After the top dripping edge has been mounted, the window can be installed (Fig. 51).

Fig. 48: Detail of installing the top dripping edge

Flap approx. 5 mm

Adhesive mastic seal

Slot approx. 80 x 5

Top dripping edge

Detail A

The closing flashing is fixed last. Before the closing flashing is mounted, the support of the closing flashing is riveted in the complete width of the window; seal EPDM 2 x 30 (Fig. 47) is fixed to it. When the window has been installed, a mask of the top dripping edge is installed, if necessary.

Fig. 49: Closing of the bottom dripping edge

Closing flashing

Fig. 50: Detail of installing a bottom dripping edge

Adhesive mastic seal

Flap approx. 15 mm

Bottom dripping edge

Blind rivet 4 x 8 – stainless steel

Detail B

Fig. 51: External view of a window

Blind rivet 4 x 8 stainless steel Flashing of the top dripping edge

Closing window flashing

Window

Adhesive mastic seal

Bottom dripping edge

Closing window flashing

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4.0 Packing, Transport and Storing

4.1 Packing

Typically, panels are packed in stacks of height ranging from 200 to 1200 mm (Fig. 52). A stack of panels is loaded on to a Styro-foam base to a height of 100 mm. Varnished surfaces of panels are protected by a self-adhesive protective foil that should be removed at the individual panel assembly stage. A stack of panels is protected by cardboard; wrapping by a stretchable machine packing foil ensures its water tightness.

Possible packing methods:- packing for a road transport, - packing for combined - road & railway transport,- packing for railway transport.

Maximum dimensions of stacks including packaging:- width: 1195 mm,- height: 1320 mm,- length: 14150 mm,- weight: 3500 kg.

Fig. 52: Side view of a stack

Panels and all protective elements are wrapped in a packing foil.

Handling instructions

Cover

Corner element – distance piece

Labels

Front side

Styro-foam

Detailed information about packing is contained in Trimo Technical Document 9 Packing, transport and storing of Trimoterm FTV INVISIO façade panels. Instructions are available on the Internet (www.trimo.si).

4.2 Transport

WARNINGS:- Only one stack may be carried at a time. - Off-loading and site manupulation by a forklift truck is allowed only for stacks of a length up to 6 m.- Lifting by all kinds of cranes should always be carried out with fabric carrying belts.- Unloading instructions for handling are to be strictly followed. They are attached to a stack and any other handling can easily cause damage.- When stacks are received on a building site a recipient is obliged to complain about all visible defects to a driver.

Transport of Trimoterm FTV INVISIO façade from the factory to a building site is carried out by trucks or rail. The load should be fixed on a means of transport by fabric carrying belts. A lift or crane truck can be used for carrying of stacks and a fork lift truck for the transport of stacks shorter than 6 m. Moving or pushing of stacks by fork points or use of steel wires for carrying stacks with a crane is not allowed; only load bearing belts of suitable load-bearing capacity can be used for crane handling. Special attention is to be paid to the centre of gravity, since it should be between the forks or the load bearing belts.Only one stack may be carried at a time!

When unloading a truck the truck tarpaulin should be completely removed from the vehicle. The carrying frame of the tarpaulin should also be completely (also from sides) removed so that panels cannot get damaged when lifted.

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4.3 Storage

When storing Trimoterm FTV INVISIO panels the following is to be considered:- It is recommended that the stacks be stored in their original packaging, which ensures suitable water tightness.- When storing panels in the open air, a cardboard cover protects them against the sun; if there is no cover, it may be difficult to remove the protective foil. It is recommended that the foil be removed after three months.- Stacks are to be arranged on the flat and solid ground so that a stack cannot sink under its own weight and slip to the ground which is especially dangerous in winter when ice can collect on the foil. - Possible ways of arranging stacks are presented in Fig. 53.

Fig. 53: Arranging stacks for storing

Low stacks

High stacks

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5.0 Maintenance

5.1 Annual Checking of a Façade

In accordance with desirable practice it is necessary to check a façade and the complete building at least once a year. The purpose of checking is elimination of any possible shortcomings and extending of the façade’s life time.

Annual checking includes:- Cleaning of all dirt collected on the façade and if necessary, washing of the façade. It is recommended that the façade be washed once a year by a soft brush. If necessary a mild cleaning agent can be added (pH 6-7, concentration max. 10 %). The façade is washed from top to bottom by running water.- Damage caused to the façade is to be repaired immediately when it appears or it is observed. The location of damaged places is to be mechanically cleaned by a fine abrasive agent (Scotch breit M600). Removal of dust and grease follows (cleaning alcohol, isopropyl alcohol). Then a primer coating is applied by a brush (an air-dried coat based on epoxy fixing agent and Zn pigments). At the end final coating is also applied by a brush (an air-dried coat based on polyurethane or acrylic fixing agent).

5.2 General Recommendations

The use of any aggressive substances for façade cleaning is prohibited due to possibility of damage of anticorrosive colour coating.

Use of a rotating grinding machine (cutting machine) in the vicinity of the Trimo façading is prohibited since hot parts can damage the coating.

If there are any questions relating to maintenance of a building or if repairs of defects or damage are needed, you are kindly asked to consult “Trimo Service” department.

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