gt fr angl - barbour product search

88

ventilated façades / technical handbook

edition No.6 2005

Maestral®, a cold, dry and gusty windfrom the northwest in the Rhone valley, which iscaused by high pressure in the north Atlantic andnorthern Europe together with low pressure overthe Mediterranean and the Gulf of Genoa. It can blow for up to nine days. It chases theclouds away, and leaves the air cool and clean. Its name comes from the Latin magistralis:“of a master or the Provencal mistraù: master”.

Hospital at Charleville-Mézières, France

Architect : Atelier PAC

GT FR ANGL 21/03/05 14:47 Page 88

89

D E S C R I P T I O N

The Maestral® is an external wall-cladding system,based on double-wall terracotta panels, mechanicallyfixed without interlocking by means of metallic clips(stainless steel X5CrNi18-10 (1.4301) fasteners) usingtwo possible methods:• either fixed onto the concrete or masonry wall, by

means of a special mounting structure (non-insulated cladding) (see diagrams 3 and 5).

• or fixed onto a wall by the intermediary of a specialwood or metal mounting structure standing off thewall to permit the construction of a cladding withintegrated thermal insulation (insulated cladding)(see diagrams 4 and 6).

This system is regulated by Technical Approval (CSTB)N°2/02-920 for Maestral® 7 cm and N°2/03-1038 forMaestral® 4 cm.Maestral® can also be installed vertically according todescription made in Technical Approval.

P R O P E R T I E S

• Maestral®Maestral® Terracotta panels meet the specificationsof NF P 13.304 and EN ISO 539.2 Method Cstandards.The manufacturing of these bricks is supervised bythe Scientific and Technical Centre for BuildingIndustry (CSTB) within the context of approval of theproduct according to Technical Approval. This frostresistant product resists well to both soft and hardshocks (until Q4 classification depending the productand according to AFNOR NF P 08.301 and NF P08.302 standards), which allows them to be used inthe most exposed areas of the ground floors ofbuildings. Furthermore, the ease with which a brickcan be replaced enables bricks to be changedanywhere on the façade without any particularcomplications. Its qualities concerning the effect ofpressure/ depression due to wind (>1120 Pa)enable it to obtain safety coefficients sufficient foruse without restriction on buildings which height issuperior to 45 m.

MAESTRAL®

The Maestral® is the first long cladding tile on the market (up to152 cm). This double-skin impact-resistant product (up to Q4) isavailable in two thicknesses. Its open joints provide betterventilation and thermal insulation for the façade.Architecturally, the verticals are emphasized by the sections,slightly protruding. The Maestral® can also be combined with Acoustic Bardeau (foracoustic applications).It is available with three surfaces and in six colours.

D i a g r a m 1

* The quantities were established for a horizontal joint between thepanels of 1 cm, for a vertical joint between

the panels 2 cm (including the T section), and for a horizontal jointbetween angle Maestral of 0,5 cm.

The units indicate the surface area and the linear dimensions for thefaçades including the joints.

Identical values whatever the finsh: smooth, sanded, ridged

* 1520 is the maximal length of the productFor other lengths , please contact us

Ask Terreal for other models of sections (included angle sections)

-

NUMBER OF CLIPS

Dimensions (mm)H x L x th x R

Quantityof products

U.weight(kg)

Weightper m2

(kg)Module(mm)

Standard right(id. for left) (1)

Angleright / left

Standard*Maestral

Product

74200 x1520 x 70 BAR01 3,1/m2 23,9 210 x 1540to 1550 3,1/m2 -

75300 x1520 x 70 BAR02 2,1/m2 35,8 310 x 1540to 1550 2,1/m2 -

61200 x1520 x 40 MAE03 3,1/m2 19,8 210 x 1540to 1550 3,1/m2 -

-61300 x1520 x 40 MAE01 2,1/m2 29 310 x 1540to 1550 2,1/m2

-61410 x1520 x 40 MAE02 1,6/m2 38 420 x 1540to 1550 1,6/m2

ProductCode

AngleMaestral

21/lm205 x 170 x 70 x 170 BARA11 4,8/lm 4,4 210 - 9,6/lm

Section M 7 direct intallation 1,45140 x 3000 x 106 BAR30 0,65lm/m2 6,14 1540 to 1550 - -

22/lm305 x 170 x 70 x 170 BARA12 3,3/lm 6,6 310 - 6,6/lm

2,2/lm22/lm925 x 170 x 70 x 170 BARA13 1,1/lm 20 930 -

2,2/lm18,7/lm925 x 170 x 40 x 170 MAEA11 1,1/lm 17 930 -

1,6/lm18,4/lm1255 x170 x 40 x 170 MAEA12 0,8/lm 23 1260 -

Section M 7cladding 1,4283 x 3000 x 145 BAR40 0,65lm/m2 6,02 1540 to 1550 - -

Section M 4direct intallation 1,27144 x 3000 x 76 M04P1 0,65lm/m2 5,76 1540 to 1550 - -

Section M 4cladding 1,1783 x 3000 x 115 M04P3 0,65lm/m2 5,31 1540 to 1550 -

GT FR ANGL 21/03/05 14:47 Page 89

90

edition No.6 2005

P R O P E R T I E S

The Terreal Maestral® meets the followingstandards:> Expansion in contact with humidity (according

to NF P 13.304)> Water absorption (according to NF P 13.304)> Resistance to efflorescence (NF P 13.304)> Resistance to shattering (NF P 13.304)> Resistance to frost (EN ISO 539.2 Method C)

• Fixing fasteners9 types of fasteners are available:3 for Maestral® 7, 3 for Maestral® 4, 3 for both.

For each Maetsral®, there is a:1- lower right/left clip2- standard left clip3- standard right clip4- upper left clip5- upper right clip6- angle right/left clip(see diagram 17).

Designed for the fixing of standard Maestral®, the clipfasteners are made of stainless X5CrNi18-10 (1.4301) andremain unchanged over time. The clip fasteners areequipped with closed cell foam wedges which preventmovement and absorb shocks to the walls during fixing. This foam wedge also plays the part of an anti-vibrationacoustic shock absorber. These products are subjected totests reports done by the CSTB and VERITAS (see diagrams 11 and 18).

• SectionsExtruded aluminium sections in aluminium alloyAGS 6060 T5 with minimum thickness of 25/10emm. There are two types of sections: standardmounting section and angle section for directfixing and indirect fixing methods. (see diagram 19)

A P P L I C A T I O N S

This is a terracotta façade covering for new orold buildings which is maintenance-free. Fixedmechanically to the wall by means of a specialmounting structure with a T or Ω-shape, thissystem allows:

FEATURES

D i a g r a m 2

WALL-CLADDING INSTALLATIONvert ica l sect ion

D i a g r a m 4

200

300

170

170

70

70 205

7070

40

170

170r = 50

r = 5

Maestral 7x20 Maestral 7x30

410

40

Maestral 4 x 41

300

40Maestral 4 x 30Maestral 4 x 20

200

40

max

imun

leng

th 1

255

angle Maestral

maximun len

gth 1520

maximun len

gth 1520

maximun len

gth1520

Maestral 7 : 145 mmMaestral 4 : 115 mm

fixing plug

fixing bracket

profile

inst

alat

ion

clea

ranc

e =

10in

stal

atio

n cl

eara

nce

= 10

200

or 3

00 o

r 410

mm

minimum 2 fixings

DIRECT INSTALLATION vert ica l sect ion

D i a g r a m 3


fixing clip

fixing clip

Maestralfixing plug

profile

standard fixing clip

self-tapping screws

MAESTRAL®

GT FR ANGL 21/03/05 14:47 Page 90

91

> A l l t h e t e r ra c o t t a f a ç a d e s o l u t i o n s www.terrealfacade.com

> the construction of walls type XIII in case of aninterposition of an insulating material from theoutside (insulating cladding system),

> the construction of walls type III (direct fixingmethod).

Maestral® can also be used as decorative finish(screens, bases of buildings, road systems,covering… ) allowing the construction of asecond cover for acoustical insulation.

I N S T A L L A T I O N

Following a previously traced grid pattern, the fixermarks out the secondary vertical frame to whichthe right and left clips will be attached (see diagrams 3 and 4). The method ofconstruction of the metal framing must conform tothe standard described in the CSTB worksheet n°.3194 dated February 2000.The T or Ω -shaped metallic rail (constituting thesecondary frame) receives on each wing, right andleft, the left and right fasteners supporting theMaestral®.The abutment of the central post of the T or Ω -shaped rail projects beyond the Maestral® facing(see diagrams 5 and 6) : The effect is to create aspray which avoids stagnation of the runoff water.As a variation, installation on wooden framesequipped with joint-cover spine is possible if it is inconformity with CSTB worksheet n°. 3316 datedFebruary 2001 and the modification no.3422.

The choice of the fixing method must be made inaccordance with the regulations presented in CSTBworksheet n°. 1661 dated July/August 1980. In caseof installation with insulation from outside, an airspace of at least 2,0 cm must be left between theback of the Maestral® and the insulation in orderto permit free air circulation.It is important to leave a vertical joint ofapproximately 1 to 1,5 cm between the central postof the mounting structure and the Maestral® (seediagrams 5 and 6), in order to ensure the easymaintenance of the system (replacement of theMaestral®).

Bertholet high school , Annecy, France

Architect : Wolff

WALL-CLADDING INSTALLATION hor izonta l sect ion

D i a g r a m 6

30 mm

fixing plug

self-tapping screwsstainless steel 5,5 x 22

profile

fixing clip

J = from 10 to 15 mm aprox.

20 mm air layer ventilation

fixing bracket including asystem of verticalityadjustement in contact withthe aluminium framing

J

DIRECT INSTALLATION hor izonta l sect ion

D i a g r a m 5

Mea

stra

l 7 :

106

mm

Mae

stra

l 4 :

76 m

m

30 mm

metal adjustementshim

self-tapping screwstainless steel 5,5 x 19

profile

there is also a half-profilefor treating jambs

GT FR ANGL 21/03/05 14:47 Page 91

92

edition No.6 2005

D E A L I N G W I T H I R R E G U L A R P O I N T S

• Base detail: start At the starting point, it is necessary to start with ametal section, L-shaped, drilled with holes andfixed to the vertical wall, protecting the variouspanels which constitute the cladding and enablingthe drain-off of any water thanks. Bottom Maestral® are fixed by means of bottomright/left stainless steel clips . (see diagrams 7, 8 and 18)

• Wall top detail: endAt the top of the work, the Maestral® must beprotected using a waterproof flashing overlappingthe piece.Top Maestral® are fixed using top right and leftstainless steel clips. (see diagrams 9, 10 and 18)

MAESTRAL®

France Télécom, Marseille, France

Architect : Michel Nizri

DIRECT INSTALLATIONend deta i l

D i a g r a m 9

WALL-CLADDING INSTALLATIONend deta i l

D i a g r a m 1 0

DIRECT INSTALLATIONstart deta i l

D i a g r a m 7

WALL-CLADDING INSTALLATIONstart deta i l

D i a g r a m 8


Maestral

b

top fixing clip


Maestral

bottom fixing clip

©M

athi

eu D

ucar

oy

Maestral


profile

Maestral


bottom fixing clip

profile

GT FR ANGL 21/03/05 14:47 Page 92

93



• Angles External angles are built with Maestral® angle piecesupported by left/right angle clips. (see diagrams 11, 12 and 13).

WALL-CLADDING INSTALLATION point of contact with an angle Maestra l®

D i a g r a m 1 3

DIRECT INSTALLATIONpoint of contact with an angle Maestra l®

D i a g r a m 1 2

RIGHT/LEFT STAINLESS STEEL X5CRNI18-10 (1 .4301) CL IP – FOR ANGLE MAESTRAL®

D i a g r a m 1 1

20 mm

20 mmprofile

fixing bracket to be laid zigzag oneither side to the right and to the

left of the support timber with a density depending on the weight of the cladding

element and on the strength of the wall

right or left anglefixing clip

left fixing clip

right fixing clip

55

1,5

3030

13 14 1,5

closed-cell polyethylene foam

LEFT VIEWdimensions in mm

FRONT VIEW

20 mm

20 mm

profile

right or left anglefixing clip

left fixing clip

right fixing clip

Morsang/Orge Professional High School, France

Architect : Pierre Lombard

The Cité Internationale centre in Lyons , France – « Arts et Serres »

housings

Architect : RPBW

©Th

ierr

y Rav

asso

d

GT FR ANGL 21/03/05 14:47 Page 93

94

edition No.6 2005


• Dealing with openings> Jambs and lintelsThey must be dealt with metal subframes whichare fixed to the metal framework of the structure.An adaptation of the subframe with the mountingframe of the Maestral® should be provided for. (see diagrams 16 and 17).> SillsThe sills can be dealt with using a metal flashing(see diagrams 14 and 15).

MAESTRAL®

Suite Hôtel, Porte de la Chapelle, Paris, France

Architect : Di Fiore

DIRECT INSTALLATION opening deta i l s : jamb sect ion

D i a g r a m 1 6

WALL-CLADDING INSTALLATION opening deta i l s : jamb sect ion

D i a g r a m 1 7

DIRECT INSTALLATION opening deta i l s : s i l l sect ion

D i a g r a m 1 4

WALL-CLADDING INSTALLATION opening deta i l s : s i l l sect ion

D i a g r a m 1 5

Maestral

right fixing clip

profile

joinery abutting the profile

wall opening bearing member

from 10 to 15 mm.

Maestral

right fixing clip

profile

joinery abutting the profile

wall opening bearing member

from 10 to 15 mm.

bracket strengtheningthe metal framing

top fixingclip

profile

aluminium section fixedunder the casework

fixing point

Maestral

top fixingclip

Maestralprofile

aluminium section fixedunder the casework

fixing point

minimum2 fixings

©Ka

mel

Kha

lfi

GT FR ANGL 21/03/05 14:47 Page 94

95



• Miscellaneous accessories (not supplied by Terreal)> Metallic or PVC sections for the construction of

overhangs, joint-covers and other variousfinishes

> Miscellaneous hardware, wall plugs> Thermal insulation, mastic> Fixing brackets> Wooden frames> Joint-cover spines

F IX ING CL IPS FOR MAESTRAL®

D i a g r a m 1 8

SECTIONS FOR MAESTRAL® 4

D i a g r a m 1 9

100

6556,5 26

65

44

70

26

5665

26

5665

7010

0

56,565

26

2 holes Ø ø6 2 holes Ø ø6

2 holes Ø ø6

3 / standard left clip

5 / right/left low clip

dimensions in mm

1 / left high clip 2 / right high clip

4 / standard right clip

M04P2

2

16

38

70

3

3

6076

7

M04P4115

523

60

43

40 3

7

M04P5

45

45˚

12661.5

3939

60

115

42

52

22

3

3 61.5

3 3

M04P6

2

3

3

82

60

37.5

108

45

37.5 7

45

15.5315.5

M04P3

83

40 403

60

115

523

7

M04P1

2

30330

144

76

78

31660

3

7

Caisse des dépôts et consignations bank, Quai d’Austerlitz, Paris, France

Architect : P. Virnot, B. Michel, Quatre Plus Architecture

©Ka

mel

Kha

lfi

GT FR ANGL 21/03/05 14:47 Page 95

96

edition No.6 2005

INSTALLATION GUIDE MAESTRAL®

Use a laser or spirit level to draw thehorizontal line used as a start refer-ence for inserting profiles. The start-ing point is determined according tothe installation grid.

Mark out the area chosen for theprofiles according to the verticaljoint desired. Verticality adjusted byblocking, if necessary, to avoiddeforming the profile support.

Repeat the previous operation untilthe desired height is reached: posi-tion the running clips on theMaestral®, insert it on the lower clipsand fasten one clip and then theother.

Position the upper clips for the lastMaestral®. Offset the side element sothat the visible clip can be mounted,then repeat the operation for theother upper clip.

Position the Maestral® with the ver-tical joint desired.

The starter clips are inserted fromthe lower point of the profile posi-tioned on the horizontal marker (2self-tapping screws/clip).

Place the clips running right and lefton the Maestral® and position theprofiles on the lower clips.

Fix the clips against the core of theprofile using self-tapping screwsand according to the module (210mm, 310 mm or 420 mm).

GT FR ANGL 21/03/05 14:47 6

97


replacement of a broken part

Push the top part back on one sideto access the clip screw and removeit. Repeat this operation on theother side and recover the clips.Insert the clips on the replacementMaestral®.

Position the running clips on thereplacement Maestral®. Put the piecein position, first inserting the upperpart of the Maestral® until it is incontact with the piece above, pushtowards the wall then exert downwardpressure to push the clips right in.

Offset the piece on one side so as to fas-ten the visible clip, then repeat this opera-tion for the clip on the other side.

The replacement is complete.

methodsof gauging

real width L

grid T = width L +vertical joint Jv

width L

Vertical joint Jv

Angle clip recut

Vertical sectionsfor direct installation

or cladding

heig

ht H

Real

he

ight

H

Specific edging (zinc, aluminium, window frame...)

within the limits of the area covered(water drainage in the upper part)

Specific edging (zinc, aluminium...) to the lower limits of the area covered: eventual use of standard

anti-rodent features

Hor

izon

tal j

oint

Jh

Terracotta productAluminium sectionSpecific edging

Low clip (symmetrical)

gauge P= real

height H +horizontal

joint Jh

Products recut vertically only (or horizontally for

vertical installation)

Internal angles:joining products cut straight

External angles:angle

Maestral

Angle clip

Top clipleft right

Running clipleft right

Angle clip recut

GT FR ANGL 21/03/05 14:47 Page 97

98


edition No.6 2005

Caisse des dépôts et consignations bank, Quai d’Austerlitz, Paris, France

Architect : P. Virnot, B. Michel, Quatre Plus Architecture - Product : Maestral®

©Ka

mel

Kha

lfi

GT FR ANGL 21/03/05 14:47 Page 98

99

www.terrealfacade.com

Interregional laboratory, Oullins, France

Architect : Jacques Ferrier Architecte - Product : Maestral® * installation not included in the Maestral® Technical Approval

Artois building, Compagnie des EMGP (Paris warehouses and general stores company), Paris, France

Architect : Chaix et Morel Associés - Product: Maestral®

©Ja

cque

s Fer

rier A

rchi

tect

e©

Dani

el O

sso

GT FR ANGL 21/03/05 14:47 Page 99

100


edition No.6 2005

Piterak®, a katabatic wind which flowsalong the edges of the icecaps of Greenland and Iceland.

Oldham Art Gallery, Manchester, United-Kingdom

Architects : Pringle Richards Sharratt

©Ph

ilip

Asch

win

GT FR ANGL 21/03/05 14:47 Page 100

gt fr angl - barbour product search

Documents