PREFA Aluminiumprodukte GmbH Page 1 of 25

Tender Specifications 120901 PREFALZ Double Standing Seam_2012 ---------------------------------------------------------------------------------- 01. Text GENERAL PRELIMINARY REMARKS Roof ---------------------------------------------------------------------------------- Author: PREFA Aluminiumprodukte GmbH Last updated on 1 September 2012 The installation and assembly instructions of PREFA Aluminiumprodukte GmbH as well as the nationally applicable regulations, technical rules and standards form the basis for the execution of the performances described. The tender specifications are based on the following documents:... The following tender specifications were created based on the planning documents provided to us in accordance with currently valid general technical regulations. The items are to be checked for feasibility by the tenderer, the quantities are to be checked for correctness on the object and changed if required. Material waste, seam losses as well as small items and mounting material are to be included in the relevant items. Billing is done based on on-site measurement. The tour of the site prior to tender is strongly advised. The PREFA Aluminiumprodukte GmbH makes no guarantees for either the completeness of the individual items for performing the services described as well as for the accuracy of the measurements in the individual items. The planner has to check all the information and statements for accuracy and adjust them if necessary. This is a tender input that is made available as an advisory service to the planner (e.g. architects). PREFA Aluminiumprodukte GmbH Page 1 of 25

Tender Specifications 120901 PREFALZ Double Standing Seam_2012 ---------------------------------------------------------------------------------- 01 LV PREFALZ Double Standing Seam 01.01 Title PREFALZ Double Standing Seam ---------------------------------------------------------------------------------- 01.01.1 Roof covering with PREFALZ colour aluminium band Delivery and installation of a roof covering from PREFALZ colour aluminium band Simple standing seam Minimum roof pitch: > 45 Angular standing seam Minimum roof pitch: Region exposed to normal stress 25 Snowy region 35 Double standing seam: Minimum roof pitch: 3 < 7 with sealing tape/fold gel Standard coverage: double standing seam Band width: 650 mm / 500 mm Axial dimension: 580 mm / 430 mm Sheet width: 570 mm / 420 mm Selected band width:...mm Material quality: aluminium, Alloy: Al Mn1Mg0,5, seam quality H41 Surface: PP99 two-layer stove-enamel finish, (back side protective lacquer) Stucco or smooth Colour: standard according to the valid PREFA colour chart... Seam indents conical, so that an expansion gap remains at the lower support area of the tracks, fastening by means of PREFA angular lead tack cleats or PREFA angular sliding lead tacks. According to PREFA installation guidelines professionally and storm-proof on full boarding, min. 24 mm thick. 0.000 m² EP... GP... PREFA Aluminiumprodukte GmbH Page 2 of 25

01.01.2 Roof covering with PREFALZ colour aluminium band P.10 Delivery and installation of a roof covering from PREFALZ colour aluminium band P.10 Simple standing seam Minimum roof pitch: > 45 Angular standing seam Minimum roof pitch: Region exposed to normal stress 25 Snowy region 35 Double standing seam Minimum roof pitch: 3 < 7 with sealing tape/fold gel Standard coverage: double standing seam Band width: 650 mm / 500 mm Axial dimension: 580 mm / 430 mm Sheet width: 570 mm / 420 mm Selected band width:...mm Material quality: aluminium, Alloy: Al Mn1Mg0,5, seam quality H41 Surface: P.10 two-layer stove-enamel finish (back side protective lacquer) Stucco or smooth Colour: Standard according to the valid PREFA colour chart... Seam indents conical, so that an expansion gap remains at the lower support area of the tracks, fastening by means of PREFA angular lead tack cleats or PREFA angular sliding lead tacks. According to PREFA installation guidelines professionally and storm-proof on full boarding, min. 24 mm thick. 0.000 m² EP... GP... 01.01.3 Allowance for the main item for sheets 330 mm Allowance for PREFALZ sheets in the gable area Band width: 330 mm Axial dimension: 260 mm Sheet width: 250 mm 0.000 m² EP... GP... PREFA Aluminiumprodukte GmbH Page 3 of 25

01.01.4 Allowance for the main item for narrow/special sheets Allowance for narrow/special sheets with seam direction changes within a surface (deviating main sheet width) 01.01.5 Allowance for the main item for rounded sheets Allowance for the fabrication and installation of rounded sheets Radius: concave... mm Radius: convex... mm Standard coverage: double standing seam Symmetrical distribution according to local allowance. 01.01.6 Allowance for the main item for conical sheets Allowance for the fabrication and the installation of conical sheets Standard coverage: double standing seam Symmetrical distribution according to local allowance. 01.01.7 Allowance for the main item for simple ridge covers simple or double seam. 01.01.8 Allowance for the main item for seam connections Allowance for the fabrication of seam connections on eaves and channels Standing straight seam (standard) Oblique folded back seam, Standing oblique seam (standard) Standing round seam (standard) Standing curved seam (standard) Selected construction:... PREFA Aluminiumprodukte GmbH Page 4 of 25

01.01.9 Allowance for the main item for boot seam (Bündner seam) Allowance for the fabrication of a boot seam (Bündner seam) on rising building elements, incl. back-fold Installation height:... mm, Axial dimension: 580 mm 1.72 pcs/m 430 mm 2.33 pcs/m 01.01.10 Allowance for the main item for cross seams Allowance for the fabrication of cross seams Roof pitch: Type of cross-stitches: > 25 Simple cross seam > 10 Simple cross seam with additional seam > 7 Double cross seam (without sealing insert) < 7 Waterproof design (double cross seam with sealing insert) 01.01.11 Allowance for the sealing off of the seams Allowance for the inserting/applying of PREFA fold gel or sealing tape into the seams in the roof pitch area < 7 0.000 m² EP... GP... 01.01.12 Allowance for the main item for bevel cuts Allowance for the fabrication of bevel cuts on oblique roof geometries (channel, ridge, etc.) 01.01.13 Allowance for the prior item for corners, connections and terminations Allowance for the fabrication of corners, connections and terminations PREFA Aluminiumprodukte GmbH Page 5 of 25

01.01.14 Eaves flashing from PREFALZ supplementary strip Delivery and installation of eaves flashings from PREFALZ supplementary strip Eaves flashing: Material strength: min. 1.0 mm Cut:...mm Folded edge:...pcs Incl. required mounting material, storm-proof and stretchable. Material strength eaves flashing < 1.0 mm construction with thrust plate. 01.01.15 Allowance for the item eaves flashing (rounded eaves) Allowance for the delivery and installation of rounded eaves (in segments) 01.01.16 Run-off plate from PREFALZ supplementary strip Delivery and installation of run-off plates from PREFALZ supplementary strip Cut:... mm Folded edge:... pcs Incl. required mounting material, installed so as to be storm-proof and stretchable. PREFA Aluminiumprodukte GmbH Page 6 of 25

01.01.17 PREFA safety channel (fabricated at the factory) Delivery and installation of PREFA safety channels with additional seam Cut: 708 mm Folded edge:... 8 pcs The individual pieces (max. 3000 mm) must be connected so as to be able to be stretched, incl. mounting holders and working all (doublesided) connections onto the PREFA roof covering. 01.01.18 Channel formation from PREFALZ supplementary strip Delivery and installation of channel flashings from PREFALZ supplementary strip Folded edge:... pcs The individual pieces (max. 3000 mm) must be connected so as to be able to be stretched, incl. mounting holders and working all (doublesided) connections onto the PREFA roof covering. 01.01.19 Channel formation, deepened channel from PREFALZ supplementary strip Delivery and installation of a deepened channel formation as channel gutter from PREFALZ supplementary strip Folded edge: up to 5 pcs Lowered support structures available on-site, the individual pieces (max. 3000 mm) must be connected so as to be able to be stretched, incl. mounting holders and working all (double-sided) connections onto the PREFA roof covering, incl. application of a layer of undercover sheeting as an additional backflow protection. PREFA Aluminiumprodukte GmbH Page 7 of 25

PREFA Aluminiumprodukte GmbH Page 8 of 25

01.01.20 Channel formation (curved channels) Delivery and installation of a round or folded channel formation with arched dormers from PREFALZ supplementary strip Dormer width:...mm Rise:... mm Main roof pitch:... The individual pieces (max. 3000 mm) must be connected so as to be able to be stretched, incl. mounting holders and working all (doublesided) connections onto the PREFA roof covering. 01.01.21 Lateral wall connection from PREFALZ supplementary strip Delivery and installation of channel flashings from PREFALZ supplementary strip for lateral wall connection Cut:... mm Folded edge:...pcs The individual pieces must be connected so as to be able to be stretched, incl. mounting holders and working all professional (doublesided) connections onto the PREFA roof covering. 01.01.22 Formation of a roof crease from PREFALZ supplementary strip Formation of a roof crease from PREFALZ supplementary strip Roof transition from... to..., incl. eaves strip and possible sealing insert. PREFA Aluminiumprodukte GmbH Page 9 of 25

01.01.23 Formation of a step configuration (gradient drop unventilated) Formation of a stepping as gradient drop with boot seam (Bündner seam) without supply air, for securing the thermally induced change in length of the sheets, on substructure that is available on site Consisting of: Boot seam, eaves flashing, eave formation The seams of the lower sheets are to be implemented at the top of the boot seam (Bündner seam), incl. back-fold. Connections to ridges, channels, gables, walls etc. must be allowed for. 01.01.24 Formation of a step configuration (gradient drop unventilated) on sprocket Formation of a stepping as gradient drop with boot seam (Bündner seam) without supply air, for securing the thermally induced change in length of the sheets, on sprocket available on-site Consisting of: Boot seam, eaves flashing, eave formation The seams of the lower sheets are to be implemented at the top of the boot seam (Bündner seam), incl. back-fold. Connections to ridges, channels, gables, walls etc. must be allowed for. PREFA Aluminiumprodukte GmbH Page 10 of 25

01.01.25 Formation of a step configuration (gradient drop ventilated) Formation of a stepping as gradient drop with boot seam (Bündner seam) with supply air, for securing the thermally induced change in length of the sheets, on substructure available on-site Consisting of: Perforated steel plate: round perforation Ø 5 mm Material strength: 0.7 mm Folded edge:... pcs Eaves flashing: Material strength: 0,7 mm Folded edge:...pcs Thrust plate: Material strength: 1.0 mm Folded edge:...pcs The seams of the lower sheets are to be implemented at the top of the boot seam (Bündner seam), incl. back-fold. Connections to ridges, channels, gables, walls etc. must be allowed for. 01.01.26 Gable strip from PREFALZ supplementary strip Delivery and installation of gable strip from PREFALZ supplementary strip Gable strip Cut:... mm Folded edge:... pcs Holding strip: Material strength: min. 1.0 mm Cut:... mm Folded edge:... pcs Incl. required mounting material, storm-proof and stretchable working onto the PREFA roof covering. PREFA Aluminiumprodukte GmbH Page 11 of 25

01.01.27 Allowance for the gable formation (round gable) Allowance for the formation of a rounded gable (in segments) 01.01.28 Ridge cover from PREFALZ supplementary strip ventilated (labyrinth) Delivery and installation of a saddle ridge cover with labyrinth ventilation on ventilated substructure that is available on site, from PREFALZ supplementary strip Consisting of: Holding strip: Material strength: min. 1.0 mm Folded edge:...pcs Cover: Material strength: 0.7 mm Cut:...mm Folded edge:... pcs Perforated steel plate: round perforation Ø 5 mm Material strength: 0.7 mm Cut:...mm Folded edge:...pcs Connections to ridges, channels, gables, walls etc. must be allowed for, the seams of the lower sheets are to be implemented at the top of the boot seam (Bündner seam), incl. back-fold. The individual pieces (max. 3000 mm) must be connected so as to be able to be stretched, 01.01.29 Ridge cover unventilated (with wood profile strip) Delivery and installation of ridge cover unventilated with wood profile strip Ridge covering: Cut:... mm Folded edge:... pcs Incl. wood strip, the sheets are to be set up on both sides and provided with a back-fold, incl. mounting of the ridge covering. PREFA Aluminiumprodukte GmbH Page 12 of 25

01.01.30 Ridge cover unventilated (with expansion seam) Delivery and installation of ridge covers unventilated with expansion seam Ridge covering: Cut:... mm Folded edge:... pcs The sheets are to be set up on both sides and provided with a backfold, incl. mounting of the ridge covering. 01.01.31 Allowance for ridge cover (rounded ridge) Allowance for the formation of a rounded ridge (in segments) 01.01.32 Single-pitch roof end part from PREFALZ supplementary strip Delivery and installation of single-pitch roof end parts from PREFALZ supplementary strip, with standing incoming seam Material strength: like main item Consisting of: Holding strip: Material strength: min. 1.0 mm Folded edge:... pcs Cover profile: Material strength: 0.7 mm Folded edge:... pcs Perforated steel plate: round perforation Ø 5 mm Material strength: 0.7 mm Cut:...mm Folded edge:...pcs The individual pieces (max. 3000 mm) must be connected so as to be able to be stretched, incl. mounting holders and working all (doublesided) connections onto the PREFA roof covering. PREFA Aluminiumprodukte GmbH Page 13 of 25

PREFA Aluminiumprodukte GmbH Page 14 of 25

01.01.33 Wall ventilator from PREFALZ supplementary strip ventilated (labyrinth) Delivery and installation of wall ventilator with labyrinth ventilation on ventilated substructure that is available on site, from PREFALZ supplementary strip Material strength: like main item Consisting of: Holding strip: Material strength: min. 1 mm Folded edge:... pcs Cover: Material strength: 0.7 mm Folded edge:... pcs Perforated steel plate: round perforation Ø 5 mm Material strength: 0.7 mm Folded edge:... pcs Connections to ridges, channels, gables, walls etc. must be allowed for, the seams of the lower sheets are to be implemented at the top of the boot seam (Bündner seam), incl. back-fold. 01.01.34 PREFA "frog's mouth" tile vent cover Delivery and installation of PREFA "frog's mouth" tile vents for supply and exhaust ventilation of the ventilation layer Material strength: 1.20 mm Ventilation cross section: approx. 30 cm² With deep-drawn top part and perforation, installation by means of riveting or adhesive bonding, incl. cutting out the required openings in the roof covering and boarding. PREFA Aluminiumprodukte GmbH Page 15 of 25

01.01.35 PREFA adhesive surround for pipe rim holes Delivery and installation of PREFA adhesive surrounds, powder coated Pipe rim holes: 50 mm to 65 mm Ø 80 mm to 120 mm Ø 120 mm to 170 mm Ø 170 mm to 210 mm Ø Roof pitch: 3-52 Professional working onto the PREFALZ roof covering. 01.01.36 PREFA ventilation pipe Delivery and installation of PREFA ventilation pipes with covering cap Material strength: 1.00 mm Height 300 mm Diameter: 100 mm Ø 120 mm Ø Incl. mounting into the adhesive surround, cutting out of the necessary opening in the battens or boarding and sealing off of the pipe rosette. 01.01.37 PREFA seam sleeve Delivery and installation of PREFA seam sleeves from permanently elastic EPDM, for the integration of round roof openings in the underroof Diameter: 100 mm - 130 mm Ø PREFA Aluminiumprodukte GmbH Page 16 of 25

01.01.38 Chimney, ventilation shaft, skylight dome or roof area window surround Delivery and installation of chimney, ventilation shaft, skylight dome or roof area window surrounds from PREFALZ supplementary strip, consisting of side parts, breast plate and neck plate Size:... x... mm Raised vertical plate ca. 200 mm Incl. professional integration in the length- and crosswise seams. For penetrations of a width > 1.0 m, an inclined wedge (saddle) is to be created in the neck area. 01.01.39 Chimney and ventilation shaft cladding Delivery and installation of chimney and ventilation shaft claddings from PREFALZ supplementary strip Size:... x... x...mm Preparation of the claddings in folded form, according to local allowance to the lower edge of the chimney mouth. 01.01.40 Chimney head covering from PREFALZ supplementary strip Delivery and installation of chimney head coverings from PREFALZ supplementary strip Size:... x... mm Incl. cutting out, flaring and sealing off the openings. PREFA Aluminiumprodukte GmbH Page 17 of 25

01.01.41 PREFA chimney crest Delivery and installation of PREFA chimney crest Material quality: Al alloy, powder-coated Material strength: 2 mm Available sizes: 700 x 700 mm 800 x 800 mm 1000 x 700 mm 1100 x 800 mm 1500 x 800 mm Size:... x...mm Incl. chimney supports and Niro screws. 01.01.42 Plaster strips (cap flashing) Delivery and installation of plaster strips (cap flashing) from PREFALZ supplementary strip Folded edge:... 5 pcs Incl. applying mounting material (if necessary dowel fastening) to the brickwork, incl. sealing with the corresponding permanently elastic sealing compound and inserting distance holders with thermal insulation. PREFA Aluminiumprodukte GmbH Page 18 of 25

01.01.43 PREFA skylight window cover Delivery and installation of PREFA skylight window covers for wooden frames for cold and attic spaces Size: 600 mm x 600 mm inside dimensions Roof pitch: from 12 Skylight window cover with double web plate and fittings, incl. wood frame, professional working onto the PREFA roof covering incl. cutting out the access opening in the full boarding as well as securing the wood frame. 01.01.44 PREFA roof exit window Delivery and installation of PREFA roof exit window. incl. surround Colour surround: like main item Size: 650 mm x 1180 mm Roof pitch: 12-85 Roof exit window: with thermal insulation frame Thermal insulation value u = 1.3 W/ m²k Tested according to EN 14351-1:2006 Sound insulation class 3 Professional working onto the PREFA roof covering incl. cutting out the access opening in the full boarding as well as securing the wooden frame. 01.01.45 Wall cladding Delivery and installation of wall claddings (dormer, gable, and front sides), Construction PREFA supplementary strip (angular standing seam) Incl. working onto the PREFA roof covering, as well as all corner and seam endings. 0.000 m² EP... GP... PREFA Aluminiumprodukte GmbH Page 19 of 25

01.01.46 Roof parapet covering from PREFALZ supplementary strip Delivery and installation of roof parapet coverings from PREFALZ supplementary strip Cut:... mm Folded edge:... pcs Incl. double-sided adhesive strips, the individual elements are to be prepared in lengths to max. 3000 mm depending on the cutting Selection of connection type: Standing seam Hook seam Transfer bar Underlay corrugated metal Selected construction:... 01.01.47 Cornice cover from PREFALZ supplementary strip Delivery and installation of cornice covers from PREFALZ supplementary strip Cornice cover: Cut:... mm Folded edge:... pcs Holding strip: Material strength: min. 1.00 mm Folded edge:... pcs Incl. required mounting material, installed so as to be storm-proof and stretchable. The individual elements are to be prepared in lengths to max. 3000 mm depending on the cutting PREFA Aluminiumprodukte GmbH Page 20 of 25

01.01.48 PREFA snow guard device for PREFALZ 1 pipe rim hole Delivery and installation of PREFA snow guard device for PREFALZ roof covering Material quality: aluminium Alloy: AlMgSi0,5 Surface: powder-coated Configuration of the SAILER clamps is based on static calculations. Consisting of: SAILER clamp: simple for one pipe rim hole Pipe rim hole: 28 mm Ø, 1 pc Joint-sleeve: 28 mm Ø inside, 100 mm long The PREFA installation instructions are to be adhered to. 01.01.49 PREFA snow guard device for PREFALZ 2 pipe rim holes Delivery and installation of PREFA snow guard device for PREFALZ roof covering Material quality: aluminium Alloy: AlMgSi0,5 Surface: powder-coated Configuration of the SAILER clamps is based on static calculations. Consisting of: SAILER clamp: double for two pipe rim holes Pipe rim hole: 28 mm Ø, 2 pcs Joint-sleeve: 28 mm Ø inside, 100 mm long The PREFA installation instructions are to be adhered to. PREFA Aluminiumprodukte GmbH Page 21 of 25

01.01.50 Allowance for PREFA ice catcher Allowance for the delivery and installation of PREFA ice catchers for the snow catching device Ice catcher: 2 pcs/sheet 01.01.51 PREFA EAP as a single anchorage point per EN 795 Delivery and installation of PREFA EAP as single anchorage point for fall protection, tested according to EN 795 Colour: Alu blank Material: Alu/stainless steel Incl. mounting and sealing material. The arrangement and design of PREFA EAP follows the guidelines of the accident prevention regulations of the respective country. The PREFA installation instructions are to be adhered to. 01.01.52 PREFA Sunny solar bracket Delivery and installation of PREFA Sunny solar bracket as fastening point of solar systems on PREFA roofs Fastening screw: STS M12 350mm Incl. cover Colour: zinc grey coated Material quality: aluminium, 1.20 mm Integration of the covering occurs by means of adhesive bond (PREFA special adhesive). The PREFA installation instructions are to be adhered to. Number and distances between supports according to static requirements. PREFA Aluminiumprodukte GmbH Page 22 of 25

01.01.53 PREFA gangway system Delivery and installation of a PREFA gangway system for clamping onto the standing seam Material: galvanised steel, powder-coated Consisting of: Gangway support: 250 mm Roof pitch: 5-55 (to be fastened on each seam) Gangway: 250 x 800/1200 mm, incl. joining posts for gangways, Incl. required mounting and small material. The PREFA installation instructions are to be adhered to. 01.01.54 PREFA roof treads for PREFALZ Delivery and installation of PREFA roof treads for PREFA roof covering for clamping onto the standing seam Material: galvanised steel, powder-coated Consisting of: Gangway support: 2 pcs. 250 mm Roof pitch: 5-55 Gangway: 250 x 800 mm Incl. required mounting and small material. The PREFA installation instructions are to be adhered to. PREFA Aluminiumprodukte GmbH Page 23 of 25

01.01.55 Work hours helper Work hours helper 0.000 h EP... GP... 01.01.56 Work hours specialist worker Work hours specialist worker 0.000 h EP... GP... ---------------------------------------------------------------------------------- Total... VAT (20 %)... incl. VAT... PREFA Aluminiumprodukte GmbH Page 24 of 25

Tender Specifications 120901 PREFALZ Double Standing Seam_2012 ---------------------------------------------------------------------------------- 01 LV PREFALZ Double Standing Seam ---------------------------------------------------------------------------------- Summary of the Bullet Points 01.01 PREFALZ Double Standing Seam... ---------------------------------------------------------------------------------- Total... VAT (20 %)... incl. VAT... PREFA Aluminiumprodukte GmbH Page 25 of 25