Monochouche renders
Index Monocouche history ................................ P. 2 Monocouche renders .............................. P. 3 Ultime color ...................................................... P. 7 Color chart ....................................................... P. 10 Project references .................................... P. 16
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Monocouche his tory Monocouche renders are a type of decorative finish, applied to the outside of buildings to provide both decoration and weather protection. The French term Monocouche has been adopted by the European render industry, in an attempt to differentiate modern renders and their application methods from those of traditional renders and their application methods. It refers to the development of more advanced render formulations that can be applied in one coat to form and cure as one monolithic layer on the façade of a building.
There are other terms that can be used to refer to these types of decorative finishes. A through coloured render and a scraped finish render are also indications that a Monocouche product has been employed; They refer to the manufacturing process and the application process. The formulation of a Monocouche render is renowned by the use of White Ordinary Portland Cement as a binder which then enables the formulation to be pigmented. The addition of pigments will give a manufacturer the opportunity to produce a colour range and employ the term through colour render as when the product is applied and finished, the pigment will bind in place all the way through the body of the render. It is applied in one coat or through a number of passes as a single layer render. It is easier to apply than traditional renders as it has greater workability and adhesion. It is available in a range of colours. It can also be applied as an internal plaster on the inner face of masonry walls. Overall thickness generally varies from a minimum of 15mm to a maximum finished thickness of 25 mm. Since early 20th both company Weber et Broutin were founded in France. George Weber and Jean Baptise made gypsum and lime-based mortars, used as a covering for building façades, in their factories. They merge in 1927 and move in 1990 under WEBER name. 2
Till date Weber Monocouche is still a reference: · Saint-Gobain Weber is the first manufacturer of Monocouche render to be awarded an A+ rating as defined in the BRE Global 2008 Green Guide to Specification. This audited material helps specifiers to make selections that will collectively reduce the environmental impact of their buildings while achieving more materials credit. · Saint-Gobain Weber is the first manufacturer to offer Monocouche and a wide range of mineral coatings with Ultime Color technology that allows the use of sustained colors on sunny facades. In the range of Monocouche and mineral renders Weber opens new perspectives to the most daring architectural projects.
Monocouche renders
Monocouche renders create an external, decorative, through coloured finish single coat, suitable for most types of brick, blockwork and concrete. The factory production process for weber pral renders ensure that quality materials are used in a controlled and accurate method, using proven engineered formulations which result in high performance in practice.
COLOUR AND TEXTURE A wide range of colours and textures are possible creating a wide range of options for the designer. Colour charts are shown on the following pages.
LOW MAINTENANCE weber.pral renders are through coloured in nature and therefore do not require further decoration. Should the need arise, the render can be easily cleaned with a ‘hobby’ style pressure washer and suitable detergent.
FAST TRACK CONSTRUCTION The use of advanced technology enables the weber.pral range to be applied in one application. In addition, it can be applied by machine, creating even faster application.
FINISHING OPTIONS • Stonework design such as ashlar can be replicated by cutting recessed joints into the finished render using specialist tools. • Changes in colour or thickness can be employed to produce raised features such as bands, plinths and stones. 3
Monocouche renders weberpral F Is a one-coat through coloured external render which offers a weather resistant, fast application and highly durable finish.
• Fine Coating for Contemporary Aspects • Suitable for the majority of new masonry (OC2 classification) • Suitable from substructure walls till external exposed façade (OC2 CSII W2) versatile product to be used on bricks or concrete blocks • Formulated to be spray applied by render pump for faster application. • Offers a variety of ways to achieve distinct architectural finishes (scraped, floated or rustic) • Available in a range of 96 Colors (Collection Terre d’enduits) + 48 (Collection Eclat Mineral) 17 colours available in Ultime Color Technology • Non-combustible and has a Class O spread of flame rating and nontoxic in fire conditions
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Technical recommendat ions Some common rules need to be applied when using Monocouche renders and correct detailing is important to protect the render. The following are some considerations common to every application. Quality finishing and application are imperative for a successful façade and requires skilled and experienced applicators.
. WINDOW SILLS
Window sills
. BASE OF THE WALLS Renders
To protect the render from rising ground water and rain splashes causing permanent and unsightly damage: Substrate
• Stop the render at the DPC (Damp Proof Concrete) by using a drip bead or installing a stone plinth or another dense material below the DPC, then ensure the DPC provides a clear break between render and plinth. • If there is a DPC (Damp Proof Concrete) in the block work then the render should not be applied across it.
Renders
DPC
The sill should extend approx 10 mm beyond the reveal, to shed rain water from render. Recommended over hang of sill minimum 50 mm.
. PARAPET WALLS
Parapet
Because of their exposed position, parapet walls should preferably be capped with a coping stone that overhangs back and front faces by 50 mm and angled away from the render face to shed water onto the roof drainage system. • No rendered to be applied on the horizontal surface of the parapet, causing a risk of staining down the render face.
Renders
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SUBSTRATE PREPARATION • The surface must be clean, sound and dry; free from oil, loose material, dust, organic growth, salts and anything that may impair the bond. • Alignment – check the level of substrate; as a guide, a deviation of 5 mm under a 2 m straight edge should be achievable. • Adjust any bad areas of wall that may not be within tolerance and allow to dry. Use a render i.e. weberpremix fiber to the level the substrate as appropriate. • Apply clean water to the substrate 2 hours before application and again just before starting. Avoid saturation as this can lead to lime bloom especially in dark colors. • Protection from direct sun during application is essential. We recommend shade netting is erected to envelope the structure to be rendered and also left in place during the curing period. • All holes should be filled, windows, doors, soffits and facias etc. should be in place before.
FORMING ANGLES • For a natural finish use metal or timber rails with a chamfered edge angled at 45˚C; remove after 1-3 days and apply the return face – must be used when Ashlar details specified • UPVC angle beads with Y section can be used to form angles with scraped finish renders • Stainless steel beads and profiles can be used but with scraped finish these will be visible
MOVEMENT JOINTS • Joints in the substrate for reasons of building movement or expansion must be carried through to the surface of the render • Examples of movement joints are shown in the following pictures Elastomeric movement joints
Renders
CRACKS CONTROL Ways to avoid cracking in render: 1. Good bonding between the render and the substrate 2. Appropriate design details
Substrate Timber joints
Renders
3. Substrate preparation
4. Curing of the substrate – allow 28 days before applying render
5. Curing of the render – for 2 days following the day of application with
a fine mist clean water 6. Movements joints to relieve stresses in the structure
7. Control the panel size - if not possible then work to a straight edge; cut
Substrate Metallic movement joints
Renders
a straight ‘ashlar’ groove at the junction with the adjoining panel 8. Glass fiber mesh reinforcement - prevent problems at position of high
stress should be applied at the corners of openings, windows, and doors etc. and at junction of different materials 6
Substrate
Wit h weber, a new innovat ion concept in coloring Dark shades with low solar absorption Ultime color technology allows the reflection of infra-red radiation, that generate warm-up of the faรงade, without modifying the color perception. ULTIME COLOR REFLECTS THE INFRA-RED RADIATION
SPECIFIC PIGMENTS ULTIME COLOR
STRONG SOLAR ABSORPTION HIGHT THERMAL IMPACT
Regular Pigments
LOW SOLAR ABSORPTION LOW THERMAL IMPACT
specific Pigments Ultime Color
When using pigments that reflect the infra-red radiation, Ultime color allows to have a solar absorption coefficient < 0.7 Dim and dark render Ultime color can be applied on all faรงade with no restrictions even when exposed to the sun. 7
ULTIME COLOR LIMIT THE ELEVATION OF TEMPERATURES ON FAÇADES The comparative thermal pictures show clearly the interest of using Ultime color technology: Lowering by 20°C to 30°C the heat accumulation during the exposure to infra-red radiations.
Thermal spectrum without Ultime Color
Thermal spectrum with Ultime Color
comparative table On concrete
ULTIME COLOR ALLOWS THE SUSTAINABILITY AND DURABILITY OF THE RENDER By limiting the warm-up of the facades Ultime color reduce the risk due to dilatation, cracking and degradation of the building structure.
ULTIME COLOR MAKE THE ORGANISATION OF THE SITE EASY Weber bring a render solution that adapts to DTU (solar absorption coefficient <0.7) with no limitation to color choices (façade exposed or not exposed to the sun)
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Starting temperature
27 °C
27 °C
Final temperature
without Ultime color
with Ultime color
82 °C
60 °C
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Monochouche color char t
Index Terres dâ&#x20AC;&#x2DC;enduits ............................................ P. 11 Eclat mineral .................................................. P. 15
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"Terres d'enduit s" color char t
ROSE CENDRÉ CLAIR 247
ROSE MOYEN 058
BEIGE ROMPU 255
BEIGE PÂLE 252
BEIGE BAUXITE 118
ROSE BEIGE MOYEN 248
BEIGE GRISÉ 224
ROSE BEIGE CLAIR 226
GRÈS ROSE 273
ROSE SOUTENU 325
ROSE OCRE MOYEN 258
ROSE CHAUD PÂLE 251
GRIS MAUVE 099
ROSE ANTIQUE 092
TON BRIQUE 080
ORANGE CLAIR 083
MAUVE BEIGE 321
TERRE ROUGE 055*
BRIQUE ORANGÉ 323*
ROUGE TUILE 106*
ROUGE CARMINE 343*
ROUGE FONCÉ 315*
BRIQUE ROUGE 330*
ROUGE TERRITE 327*
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"Terres d'enduit s" color char t
12
ROSE FONCÉ 006
PIERRE ROSÉE 005
TON PIERRE 016
BEIGE 009
ROSE ORANGÉ 082
DORÉ CLAIR 230
ROSE CLAIR 002
BEIGE OCRE 010
BEIGE ROSÉ 222
OCRE ORANGÉ 007
CRÈME 041
OCRE ROSÉ 086
BRUN DORÉ 096
OCRE ROUGE 049
DORÉ CHAUD 301
OCRE DORÉ 304
OCRE ROUGE MOYEN 313
BEIGE AMBRE 104
ORANGE FLAMBOYANT 103*
TERRE ORANGÉ 312*
TERRE ROUGE BRUN 303
ORANGE FONCÉ 081
TERRE D'OCRE 285*
ORANGE BAUXITE 299*
"Terres d'enduit s" color char t
BEIGE CLAIR 207
BLANC CASSÉ 001
BLANC 000
PIERRE GRISÉE 279
PIERRE FONCÉE 017
PIERRE CLAIRE 015
JAUNE ORPIMENT 305
TERRE BEIGE 212
MORDORÉ 232
JAUNE IVOIRE 231
JAUNE TUFFEAU 306
BRUN CLAIR 044
OCRE CHAUD 297
JAUNE DUNE 101
TERRE JAUNE 310
BRUN 012
OCRE TOSCANE 314*
SABLE BLOND 097*
JAUNE SAFRAN 311*
OCRE ROMPU 215
TERRE BRÛLÉE 319*
OCRE INTENSE 295*
JAUNE VERT 307
BRUNE FONCÉ 013 13
"Terres d'enduit s" color char t
14
BLANC CRAIE 324
BLANC BLEUTÉ 211
GRIS BLEUTÉ CLAIR 209
BLEUTÉ VERT 278
BLANC CALCAIRE 370
GRIS PERLE 091
GRIS COLORÉ FROID 272
ROCHE VERTE 377
CENDRE BEIGE CLAIR 203
GRIS VERT 276
BLEU DOUX 204
CENDRÉ VERT CLAIR 289
BEIGE SCHISTE 495
CENDRE BEIGE FONCÉ 202
BLEU MORAINE 507
ARGILE VERTE 516
MARRON MOYEN 240
TERRE D'ARÈNE 545
BLEU OXYDE 550*
OCRE MOUSSE 553*
ROSE BRUN 320*
CENDRE VERT 268
BLEU ROMPU 277*
SCHISTE VERT 574*
"Eclat mineral" color char t
UC 341 BRUN BARDEAU
UC 345 BRUN CHAUME
UC 950 VERT BAMBOU
UC 347 BEIGE CHANVRE
UC 615 GRIS SILEX
UC 616 BRUN PISÉ
UC 649 GRIS LAUZE
UC 658 BRUN ROCAILLE
UC 660 GRIS GALET
UC 661 GRIS SCHISTE
UC 665 BRUN TAVAILLON
UC 749 GRIS BASALTE
UC 706 GRIS CALAMINE
UC 761 BRUN POUZZOLANE
UC 946 MARNE VERTE
UC 949 ARDOISE BLEUE
UC 296 BRUN LIÈGE
UC 318 GRIS ACIER
UC 605 GRIS TITANE
UC 609 GRIS CHROME
UC 644 GRIS GALVA 15
Project references
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Bellevue medical center - Lebanon
Saifi Village - Lebanon
Agha Residence - Lebanon
Villa Park Residence - Vaudricourt