FLAGON PVC ROOFING YOUR ROOFING AND WATERPROOFING PARTNER

Introduction 2 FLAGON PVC membranes 2 Manufacturing process 3 Elements and functional layer of the roof 5 FLAGON PVC roofing system 9 Functional solutions 11 Details and particulars 13 How to create contract specifications 17 General laying instructions 18 Checks 20 Detailed laying instruction 21 Index REV. 0 Ottobre 2002

INTRODUCTION This section of the technical manual includes sectional diagrams, construction details and laying instructions for waterproofing with FLAGON PVC membranes. Careful design and correct laying are the prerequisites for a long, functional life of the waterproof package. For optimal waterproof performance, carefully read this technical manual, the product data sheets and the information contained on the website www.flag.it or on the Flag CD-ROM attached to the documents. Drawings and technical details can be downloaded from the site in Autocad format. Due to space limitations, the details...

In addition to these technical features, the various types of reinforced membranes have other properties outlined below: • Glass mesh reinforced membranes > Dimensional stability. • Polyester mesh-reinforced membranes > Resistance to tear under wind stress FLAGON PVC membranes are manufactured in UNI EN ISO 9001 certified plants and fully comply with the performance standards CEN European Standard, UNI 8629/6 – SIA 280 – DIN 16726. MANUFACTURING PROCESS Manufacturing processes for this wide range of materials are quite diversified, and specifically include: COEXTRUSION In this process, the mixture...

CASTE SPREADING This is a manufacturing process that creates waterproof membranes in which the reinforcement becomes an integral part of the liner. At room temperature, a spreading head lays a substrate of a mixture of liquidviscous state products called “plastisol”. This contains resins, plasticisers, stabilisers, pigments, etc. and determines the final characteristics of the waterproof liner. After gelation (a melting process), achieved by raising the temperature inside the ovens, the plastisol solidifies. The spreading and gelation process is repeated on line four times in a row. Thus, membranes...

SELECTING THE SEALING ELEMENT All FLAGON PVC roof membranes are formulated and manufactured to meet specific requirements. To simplify the selection of Flagon PVC products, please refer to the table below: ELEMENTS AND FUNCTIONAL LAYERS OF THE ROOF An overview of the characteristics and specific functions of the “layers” of the various types of roof is useful to clarify the terms used, define the technical requirements of the materials and to better illustrate the examples given in the following pages. 1 - SUPPORTING ELEMENT OR SUBSTRATE (with or without falls) This is the structural surface...

2 - ADJUSTMENT LAYER – COMPENSATION The purpose of this layer is to take up any surface irregularities of the substrate, in order to avoid any imperfections or foreign particles damaging the vapour barrier or waterproof layers. It can be made up of one of the following materials: a) Flag geotextile, a non-woven felt, minimum weight 500 g/m2, laid in dry conditions with edge overlap of 10/15 cm; b) ISOLFLAG rigid polystyrene panels (or equivalent compensation layer), 10/20 mm thick with a density ranging between 15 and 25 kg/m3, laid in dry conditions, flush with membrane edges. 3 - VAPOUR SHIELD...

6 - WATERPROOF MEMBRANE The purpose of the waterproof membrane is to ensure complete and durable waterproofing of the roof area. In the context of this waterproof system we shall consider the various FLAGON PVC synthetic membranes. Each FLAGON PVC covering is characterised by an identification code. In the sectional diagrams given, only the FLAGON PVC membranes that correspond to the requirements of the waterproof project are indicated. 7 - FILTRATION LAYER The purpose of this layer is to allow the passage of rain water whilst preventing by filtration, sand, soil, dirt and other elements from...

10 - BALLASTING AND PROTECTION LAYER (ballasted roofs for pedestrian traffic) This prevents wind from uplifting or moving the dry laid stratification package as well as affording the protection required to allow pedestrian traffic without damage to the waterproof system. Ballasting may be effected using the following materials and laying methods: a) Dry-laid pre-cast slabs laid on circular polyethylene supports; b) Dry-laid pre-cast and/or interlocking square paving slabs on a sand bed with minimum 60 mm thickness; c) Traditional paving covered with tiles laid on a bed of cement mortar. 11 -...

15 – FIXING DEVICES (mechanically fixed exposed roofs) These prevent wind from lifting or moving the waterproofing system. The following fixing devices may be used: a) Expansion fixing plugs and plates for concrete substrates; b) Self-tapping screws and plates for metal/timber substrates; c) Pre-drilled galvanised steel bars; d) Pressure plates for screws or plugs. The type and number of fixings required will be determined by calculation of the size and zones of influence of wind loading upon each individual roof in accordance with applicable regulations. 16 - ADHESIVE LAYER (fully adhered exposed...

A.1 Ballasted roof system not for pedestrian traffic Typically, these are ballasted with gravel and are intended for pedestrian transit for maintenance operations only (see structural elements and layers of roof point 9). A.2 Ballasted roof system for pedestrian traffic These are characterized by possible or frequent transit of people. Floors, decks, sidewalks, ramps, for public or private use, where the waterproofing system must be protected against damage caused by pedestrian traffic (see functional elements and layers of roof point 10). A.3 Ballasted roof system for vehicular traffic Roof...

B.1 Fully adhered system Flat or sloping roof, made of traditionally cast or pre-cast floors in concrete, metal decks with insulation boards etc., in which the waterproof system, or waterproof liner only, is glued so as to fully adhere to the substrate to prevent the wind from lifting or moving it. The waterproof membrane will also be weather-resistant (rain, snow, hail, UV rays, etc.) and moderately accessible to pedestrian transit for maintenance operations (see functional elements and layers of the roof point 16). This laying method includes spreading Flexocol A89 polyurethane glue over the...