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REFURBISHMENT OF ROOFS

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					V i s i t o u r w e b s i t e W W W . A L K O R P R O O F. CO M




                                           REFURBISHMENT OF ROOFS
Expo Hannover pavilion “Der Grüne Punkt”
                                                                  EXCELLENCE IN ROOFING
                                                                                     R E F U R B I S H M E N T O F F L AT R O O F S
Product: AlkorPlan®F (Mechanical Fastening, 70,000 sqm) Old waterproofing: Bitumen
Project: Heysel Palaces (Brussels, Belgium, 1986-1990)




                                                                                                          ALKOR DRAKA is a subsidiary of Solvay, an international chemical and pharmaceutical Group of


                                                                                                          Companies. The Group employs over 30.000 people throughout the world with a turnover in excess of


                                                                                                          7,5 billion ¤ in 2003 . Solvay is the major European producer of PVC.


                                                                                                          ALKOR DRAKA is specialised in the production of synthetic single ply waterproofing membranes


                                                                                                          for roofs, garden ponds, swimming pools, civil engineering and damp proof membranes.
Product: AlkorPlan®L (2,400 sqm) Old waterproofing: Bitumen




                                                                                                          During the last 30 years, ALKOR DRAKA have produced more than 200 million square meters
Project: Holiday Inn hotel (Antwerp, Belgium, 1995)




                                                                                                          of membranes for waterproofing applications in all types of climatic conditions.




                                                                                                                                                                                                              Product: AlkorPlan®F (Mechanical Fastening, 2,000 sqm)
                                                                                                                                                                                                              Project: Aquitaine Silos (Cestas, France, 1995)

                                                                                                                                                                                                              Old waterproofing: bitumen




                                                                                         2
                            Project: Nestlé Waters France – Perrier
                            factories (Vergèze, France, 2000-2001)          Project: Makro Eke – Metro Group
                            Project : AlkorPlan®F ( Mechanical faste-       (Gent, Belgium, 2005)                        Project: Nestlè Factory (Girvan, UK, 2004)
                            ning, 18,500 sqm + 19,700 sqm)                  Product: AlkorPlan® A ( Adhered, 50,000 sqm) Product: AlkorPlan®A ( Adhered, 800 sqm)
                            Old waterproofing: bitumen                      Old waterproofing: bitumen                   Old waterproofing: bitumen




                                                                                                                     membranes with enhanced safety.
                                                                                                                                                       • AlkorFlex® (in modified PE): flat roof
                                                                                                                                                                                                                                                                                                                                                                                              THE PRODUCT RANGE




                                                                                                                                                                                                                                                       • AlkorPlan® (made of PVC-P): experience

                                                                                                                                                                                                          and proven quality in synthetic membranes.
                                                                                                                                                                                                                                                                                                  types suitable for the refurbishment of roofs:
                                                                                                                                                                                                                                                                                                                                                   ALKOR DRAKA produces two membranes
                                                                                                                                                                                                                                                                                                                                                                                                                                              T H E
                                                                                                                                                                                                                                                                                                                                                                                                                                              P R O D U C T




3
    EXCELLENCE IN ROOFING
                                                                                                                                                                                                                                                                                                                                                                                                                                              R A N G E




                              Project: Bari Cathedral (Bari, Italy, 1980)     Project: Montserrat Abbay (Monistrol de Mont-                                                                       Project: Ewert House (Oxford,                                                                                                                                                         Project: Tortosa Cathedral (Tarragona, Spain, 1998)
                              Product: AlkorFlex® (Mechanical                 serrat , Spain, 2000-2004) Product: AlkorPlan®L+F                                                                   UK, 2002)Product: AlkorPlan® A                                                                                                                                                        Product: AlkorPlan® L ( Under Ballast, 3,000 sqm)
                              Fastening), 2,000 sqm)                          (Under ballast + mechanical fastening, 4,000                                                                        ( Adhered, 3,500 sqm)
                              Old waterproofing: bitumen                      sqm) Old waterproofing: bitumen                                                                                     Old waterproofing: bitumen
ADVANTAGES OF SYNTHETIC MEMBRANES




                                                                 Advantages of synthetic membranes compared to the
                                                                 “traditional” bituminous waterproofing solutions:


                                                                 • Light weight: the membranes half the cost of     • Alkor Draka membranes benefit from a 10

                                                                  bituminous membranes                               years manufacturers guarantee.

                                                                 • Reduced Fire Risk: seams are welded without      • Ability to install over old bituminous water-

                                                                  the use of naked flame.                            proofing systems, with or without a separation

                                                                 • Increased speed of installation: one single 30    layer depending on the membrane used.

                                                                  m2 roll replaces up to 3 bituminous rolls.

                                                                 • High vapor permeability: AlkorPlan® membra-

                                                                  nes have the capability to breathe much more
         Project: Saint Joseph Hospital ( Mons, Belgium, 1992)




                                                                  easily than traditional bituminous systems
         Product: AlkorPlan®A (Adhered, 3,500 sqm)




                                                                  (µd up to 20 times lower!!). Consequently the

                                                                  removal of the old waterproofing system
         Old waterproofing: bitumen




                                                                  prior to renovation may be unnecessary.




                                                                                                                                                                      Product: AlkorFlex® F (Mechanical Fastening, 81,000 sqm) - Old waterproofing: bitumen
                                                                                                                                                                      Project: Landrover factories (Solihull, Great Britain, 1992-1994)




  4
                                                                                                                                                                                                                                          T H E   S Y S T E M S




                                                                                                        Product: AlkorPlan®F (Mechanical Fastening, 1,500 sqm)
                                                                                                        Project: Chassé Theatre (Breda, The Netherlands, 2002)

                                                                                                        Old waterproofing: Synthetic
Product: AlkorPlan®F (Mechanical Fastening, 35,000 sqm)
Project: Euralille (Lille, France 2000-2001)




                                                                                                                                                                                                                                                                  Project: Blackwells’ Library (Oxford,

                                                                                                                                                                                                                                                                  (Mechanical Fastening, 300 sqm)
                                                                                                                                                                                                                                                                  UK, 2003) Product: AlkorPlan®F

                                                                                                                                                                                                                                                                  Old waterproofing: bitumen
Old Waterproofing: Bitumen




                                                                                                                                                                                                                                                                  Project: Postal sort-out center (Bordeaux,
                                                                                                                                                                                                                                                                  France, 2003) Product: AlkorPlan® F
                                                          The renovation systems




                                                                                                                                                                                                                                                                  (Mechanical Fastening, 6,000 sqm)
                                                                                                                                                                                                                                                                  Old waterproofing: Bitumen
                                                          The most commonly used systems for the refurbishment of old bituminous roofs without the removal
                                                          of the old waterproofing medium are:



                                                          For ballasted roofs:
                                                          With extra insulation                                                                                                                                Without extra insulation


                                                                                                                                                                 Old bitumen/vapor control layer

                                                                                                                                                                 Insulation

                                                                                                                                                                 Separation layer (AlkorPlus® 81001 on EPS or PUR

                                                                                                                                                                 insulation, AlkorPlus® 81005 on bitumen surfaced

                                                                                                                                                                 insulation boards) (only on AlkorPlan®)

                                                                                                                                                                 Waterproofing membrane AlkorFlex® L, AlkorPlan® L

                                                                                                                                                                 Protection layer AlkorPlus® 81005/AlkorPlan® 35121

                                                                                                                                                                 (if required)

                                                                                                                                                                 Ballast



                                                          For non-ballasted roofs on a concrete structure:

                                                          With extra insulation                                                                                                                                Without extra insulation


                                                                                                                                                                 Old bitumen/vapor control layer

                                                                                                                                                                 Insulation

                                                                                                                                                                 Waterproofing membrane AlkorPlan® A,




                                                          For non-ballasted roofs on a wooden structure or on steel deck:
                                                          With extra insulation                                                                                                                                Without extra insulation


                                                                                                                                                                 Old bitumen/vapor control layer
                                                          >
                                                                                                                                                                 Insulation

                                                                                                                                                                 Separation layer (AlkorPlus® 81001 on EPS or PUR

                                                                                                                                                                 insulation, AlkorPlus® 81005 on bitumen surfaced

                                                                                                                                                                 insulation boards) (only on AlkorPlan®)

                                                                                                                                                                 Waterproofing membrane AlkorFlex® F, AlkorPlan® F,

                                                                                                                                                                 mechanically fixed




                                                                                                                                                                                          EXCELLENCE IN ROOFING

                                                                                                                                                                                                                                                            5
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                                                                                   METAL ROOF REFURBISHMENT




                                                                                                                                    Project: Doctor’s private cabinet and psychiatric hospital

                                                                                                                                    Product AlkorDesign (150 sqm)
                                                                                                                                    (Stockholm, Sweden, 2000)

                                                                                                                                    Old waterproofing: zinc




                                                                                   The AlkorPlan Profile System combines the                                   • Shorter Installation time:
                                                                                   appearance of an aluminium, lead, zinc or                                                                     - Fixing without sliding clamp nails
                                                                                   copper roof with the advantages of                                                                             or distribution plates
                                                                                   AlkorPlan® synthetic waterproofing membranes.                                                                 - Neater, integrated detailing
                                                                                                                                                                                                 - Hot air welding
                                                                                   The AlkorPlan® Profile System consists of
                                                                                                                                                               • Less demanding for the structure:
                                                                                   2 elements:
                                                                                                                                                                                                 - The vapour permeability of the membrane
                                                                                   • AlkorPlan® F mechanically fastened
                                                                                                                                                                                                  reduces the risk of condensation and
                                                                                   • Extruded AlkorPlan® PVC-P profiles, hot air
                                                                                                                                                                                                  avoids ventilation problems.
                                                                                     welded to the roofing membrane.
                                                                                                                                                                                                 - Thanks to the flexibility of the AlkorPlan®
                                                                                   The AlkorPlan Profile system avoids many of                                                                    waterproofing membranes, they may be
                                                                                   the disadvantages of metal roofing systems.                                                                    easily installed on all geometric shapes




                                                                                                                                                                                                                                                     Project: Morgan Sindell Sawston

                                                                                                                                                                                                                                                     Product: AlkorDesign (1,300 sqm)
                                                                                                                                                                                                                                                     (Sawston Cambridge, UK, 2000)
                                                                                                                                                                                                  of roofs.
                                                                                                                                                               • Limited Weight: The AlkorPlan® waterproofing




                                                                                                                                                                                                                                                     Old waterproofing: zinc
                                                                                   • Cost-effectiveness: the AlkorPlan Profile
                                                                                     System can generate important reductions                                                   membranes weigh no more than 1,8kg/m 2

                                                                                     in the cost of the system and the cost and                                                 (1,5mm thickness), this allows savings to be
                                                                                     weight of the roof structure - more than 40%                                               made on the roof structure.
                                                                                     in some of the more complex cases.                                        • Limited maintenance: in general, a visual
                                                                                                                                                                                  inspection and a simple cleaning of the
                                                                                                                                                                                  gutters and the outlets is sufficient.



                                                                                                                                                                                                                                                     Product: AlkorDesign (1,050 sqm)
                                                                                  Furthermore, in case of refurbishment, the old metal waterproofing needn’t be removed if the                                                                       Project: Peterhead Academy


                                                                                  mechanical properties allow it. This will keep the roof refurbishment costs low.                                                                                   Old waterproofing: bitumen
                                                                                                                                                                                                                                                     (Peterhead, UK, 2003)




                                                                                  Example of the refurbishment of an old, metal roofing system with maintenance of the old
                                                                                  waterproofing..
                                                                                                                       Membrane
                                                                                                          Insulation
                                                                                                                                                                                                                                                     Product: AlkorDesign ( 7,000 sqm)
                                                                                                                                                                                                                                                     The Netherlands, 1998-1999)
Project: Lawyer’s office “Droogbak” (Amsterdam, The Netherlands, 1998-1999)




                                                                                                                                                                                                                                                     Project: Silos (Amsterdam,


                                                                                                                                                                                                                                                     Old waterproofing: zinc




                                                                              Insulation




                                                                                                                                                                                                         Insulation
                                                                                   Structure                                                                                                     Zinc
Product: AlkorDesign (5,000 sqm)




                                                                                                                           Wooden boarding

                                                                                                            Joist
                                                                                                                                                                                                                  EXCELLENCE IN ROOFING
Old waterproofing: zinc




                                                                                                                                                                                                                                                 7
   ALKOR DRAKA LIMITED                                                 The British Board of Agreement have

   Station Road                                                        assessed the life expectancy of AlkorPlan®

   Cramlington, Northumberland                                         to be in excess of 25 years.

   NE23 8AQ
   Great Britain


                                                                                            IE
                                                                                           NT
                                                                                      DE
                                                                                         GARA
   Tel: +44 (0)1 670 71 82 03
   Fax: +44 (1)1 670 71 83 67                                          AlkorPlan® roofing products and Systems

                                                                       have a standard guarantee of 10 years,

                                                                       and are installed by approved contractors

                                                                       and installers who are trained and

                                                                       assessed by Alkor Draka.




                                                                                                                         The information contained in the present commercial
                                                                                                                         literature has been given in good faith and with the
                                                                       ALKOR DRAKA, like all companies in the            intention of providing information. It is based on
                                                                                                                         current knowledge at the time of issue, and may be
                                                                       Solvay Group, adheres to the requirements         subject to change without notice. Nothing contained
                                                                       of The Responsible Care Charter, and              herein may induce the application of our products
                                                                                                                         without observing existing patents, certificates, legal
                                                                       undertakes to ensure the minimum risk             regulations, national or local rules, technical
Product: AlkorFlex®F (mechanical fastening, 5,500 sqm)




                                                                                                                         approvals or technical specifications or the rules
                                                                       during production, use and disposal of
Project : Gas containers (Stockholm, Sweden, 1993)




                                                                                                                         andpractices of good workmanship for this
                                                                       these materials and to respect the needs          profession.The purchaser should verify whether
                                                                                                                         import, advertising, packaging, labelling, composition,
                                                                       of the Company’s clients.




                                                                                                                                                                                     V i s i t o u r w e b s i t e W W W . A L K O R P R O O F. CO M
                                                                                                                         posession, ownership and the use of our products or
                                                                                                                         the commercialisationof them are subject to specific
Old waterproofing: bitumen




                                                                                                                         territorial rules. He is also the sole person responsible
                                                                                                                         for informing and advising the final end user. When
                                                                                                                         faced with specific cases or application details not
                                                                                                                         dealt with in the present guidelines, it is important to
                                                                       All Alkor Draka waterproofing membranes           contact our technical services, who will give advice,
                                                                                                                         based on the information at hand and within the
                                                                       for roofing are part of the RoofCollect®
                                                                                                                         limitations of their field of expertise. Our technical
Project: Arena van Vletingen (Gent, Belgium, 1997)




                                                                       collection and recycling programme.               services cannot be held responsible for the concep-
Product: AlkorPlan®A ( Adhered, 1,500 sqm)




                                                                                                                         tion of, nor the execution of the works. In the case
                                                                                                                         of negligence of rules, regulations and duties on the
                                                                                                                         part of purchaser we will disclaim all responsibility.
Old waterproofing: Bitumen




                                                                                                                         The colours respect the UV resistance required by
                                                                                                                         EOTA, but are still subject to the natural change
                                                                                                                         over time. Are excluded from the guarantee:
                                                                                                                         aesthetic considerations in case of partial repair of
                                                                       Alkor Draka N.V. is responsible for the roofing   a deficient membrane covered by the guarantee.

                                                                       activity and has been approved to

                                                                       EN ISO 9001:2000.
                                                                                                                                                                                                                                                       R3320EX0605




                                                         ALKOR DRAKA: EXCELLENCE IN ROOFING

				
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