STRUCTURAL GLAZING



BASIC RATES(SH: 25.0 STRUCTURAL GLAZING ALUMINIUM COMPOSITE PANEL)
Code No.
Description
Unit Rate
2415 21 mm  thick clear toughened laminated glass for fins with holes sqm 6000.00
2605 Structural sealant - 6 mm x 12 mm metre 30.00
2606 Spacer tape 6.4 mm thick x 6 mm wide metre 20.00
2607 Weather Sealant - Non Staining (600 ml) each 325.00
2608 Weather Sealant - Normal (300 ml) each 98.00
2609 MS Brackets/Aluminium Alloy Brackets kg 100.00
2610 Silicon Gasket in Kg (Above 50 g / m) kg 465.00
2611 EPDM Gasket in Kg (Above 60 g / m) kg 150.00
2612 Anchor Fastner - M10 each 10.00
2613 SS Bolt with washer of  different sizes for structural glazing / ACP Cladding each 35.00
2614 SS Screws of sizes for structural glazing / ACP Cladding each 3.00
2615 Protective Tape metre 20.00
2616 GI flashing - 1.2 mm Thick kg 59.00
2617 6 mm thick High performance glass sqm 1000.00
2618 6 mm thick clear heat strengthened glass sqm 650.00
2619 6 mm thick clear heat strengthened glass each 128.00
2620 ARMS GS HD - Top Hung -20"- Type P- Couple pair 1350.00
2621 Connection Block for vision glass panel each 35.00
2622 Curtain wall striker for vision glass panel each 85.00
2623 Adjustable Fastening Pawl for vision glass panel each 35.00
2624 Corner drive for vision glass panel each 255.00
2625 Top wedge Block for vision glass panel each 120.00
2626 Glass wool of denisity @ 48 Kg / cum with black glass tissue (BGT) sqm 250.00
2627 SS Screws - # 8 x 19 each 6.00
2628 Weather Sealant - DC 789 cartridge 120.00
2629 Cement Board sqm 235.00
2630 Baker rod metre 5.00
2631 4 mm thick ACP sqm 1100.00
2632 Fire Stop metre 480.00
2634 GI/Aluminium Sheet (0.8 mm thick) kg 55.00
7306 Aluminium T or L sections kg 190.00
7392 Powder coating 50 microns on aluminium sections kg 61.00
8559 stainless steel U channel of size (50x25x2 mm) metre 160.00
8560 Non straining water resistant clear silicon metre 65.00
8654 Masking tape metre 1.95
8778 Toughened glass 12 mm thickness sqm 1747.00
8945 4 Point facade glass bracket without flat head bolts Nos 3318.00
8946 2 Point facade glass bracket (wall mounted without flat head bolt) Nos 1659.00
8947 1 Point facade glass bracket (wall mounted without flat head bolt) Nos 1300.00
8948 Flate head bolt for brackets of spider glazing Nos 651.00
8949 400 mm long fin plate without fastners pair 5931.00
9999 Sundries L.S. 2.00
25.0 STRUCTURAL GLAZING ALUMINIUM COMPOSITE PANEL
Code
No.
Description Unit Rate
25.1 Providing and supplying aluminium extruded tubular and other
aluminium sections as per the architectural drawings and approved
shop drawings , the aluminium quality as per grade 6063 T5 or T6 as
per BS 1474,including super durable powder coating of 60-80 microns
conforming to AAMA 2604 of required colour and shade as approved
by the Engineer-in-Charge. ( The item includes cost of material such
as cleats, sleeves, screws etc. necessary for fabrication of extruded
aluminium frame work. Nothing extra shall be paid on this account).
The weight of aluminium extruded section shall be taken for
purpose of payment.
kg 370.45
25.2 Designing, fabricating, testing, protection, installing and fixing in
position semi (grid) unitized system of structural glazing (with open
joints) for linear as well as curvilinear portions of the building for all
heights and all levels, including:
   
(a) Structural analysis & design and preparation of shop drawings for
the specified design loads conforming to IS 875 part III (the system
must passed the proof test at 1.5 times design wind pressure
without any failure), including functional design of the aluminum
sections for fixing glazing panels of various thicknesses, aluminium
cleats, sleeves and splice plates etc. gaskets, screws, toggles,
nuts, bolts, clamps etc., structural and weather silicone sealants,
flashings, fire stop (barrier)-cum-smoke seals, microwave cured
EPDM gaskets for water tightness, pressure equalisation &
drainage and protection against fire hazard including:
   
(b) Fabricating and supplying serrated M.S. hot dip galvanised /
Aluminium alloy of 6005 T5 brackets of required sizes, sections
and profiles etc. to accommodate 3 Dimentional movement for
achieving perfect verticality and fixing structural glazing system
rigidly to the RCC/ masonry/structural steel framework of building
structure using stainless steel anchor fasteners/ bolts, nylon
seperator to prevent bimetallic contacts with nuts and washers
etc. of stainless steel grade 316, of the required capacity and in
required numbers.
   
(c) Providing and filling, two part pump filled, structural silicone
sealant and one part weather silicone sealant compatible with
the structural silicone sealant of required bite size in a clean
and controlled factory / work shop environment, including double
sided spacer tape, setting blocks and backer rod, all of approved
grade, brand and manufacture, as per the approved sealant
design, within and all around the perimeter for holding glass.
   
(d) Providing and fixing in position flashings of solid aluminium sheet
1 mm thick and of sizes, shapes and profiles, as required as per
the site conditions, to seal the gap between the building structure
and all its interfaces with curtain glazing to make it watertight.
   
(e) Making provision for drainage of moisture/ water that enters the
curtain glazing system to make it watertight, by incorporatingprinciples of pressure equalization, providing suitable gutter profiles
at bottom (if required), making necessary holes of required sizes
and of required numbers etc. complete. This item includes cost of
all inputs of designing, labour for fabricating and installation of
aluminium grid, installation of glazed units, T&P, scaffolding and
other incidental charges including wastages etc., enabling temporary
structures and services, cranes or cradles etc. as described above
and as specified. The item includes the cost of getting all the
structural and functional design including shop drawings checked
by a structural designer, dully approved by Engineer-in-charge. The
item also includes the cost of all mock ups at site, cost of all
samples of the individual components for testing in an approved
laboratory, field tests on the assembled working structural glazing
as specified, cleaning and protection till the handing over of the
building for occupation. In the end, the Contractor shall provide a
water tight structural glazing having all the performance
characteristics etc. all complete as required, as per the Architectural
drawings, as per item description, as specified, as per the approved
shop drawings and as directed by the Engineer- in-Charge.
   
  Note:- 1. The cost of providing extruded aluminium frames, shadow
boxes, extruded aluminium section capping for fixing in the grooves
of the curtain glazing and vermin proof stainless steel wire mesh
shall be paid for separately under relevant items under this subhead.
However, for the purpose of payment, only the actual area of
structural glazing (including width of grooves) on the external face
shall be measured in sqm. up to two decimal places.
   
  Note:-2. The following performance test are to be conducted
on structural glazing system if area of structural glazing
exceeds 2500 Sqm from the certified laboratories accreditated
by NABL(National Accreditation Board for Testing and
Calibration Laboratories), Department of Science &Technologies, India. Cost of testing is payable separately.
The NIT approving authority will decide the necessity of testing on
the basis of cost of the work, cost of the test and importance of the
work. Performance Testing of Structural glazing system Tests to be
conducted in the NABL accredited lab or by any other
accreditation body which operates in accordance with ISO /
IEC 17011 and accredits labs as per ISO/ IEC 17025.
   
1. Performance Laboratory Test for Air Leakage Test (-50pa
to - 300pa) & (+50pa to +300pa) as per ASTM E-283-04
testing method for a range of testing limit 1 to 200 mVhr
   
2. Static Water Penetration Test. (50pa to 1500p) as per
ASTME- 331-09 testing method for a range up to 2000 ml.
   
3. Dynamic Water Penetration (50pa to 1500pa) as per AAMA
501.01- 05 testing method for a range upto 2000 ml
   
4. Structural Performance Deflection and deformation by static
air pressure test (1.5 times design wind pressure without
any failure) as per ASTME-330-10 testing method for a
range upto 50 mm
   
25.3

Providing, assembling and supplying vision glass panels (IGUs) comprising of hermetically-sealed 6-12- 6 mm insulated glass (double glazed) vision panel units of size and shape as required and specified, comprising of an outer heat strengthened float glass 6mm thick, of approved colour and shade with reflective soft coating on surface # 2 of approved colour and shade, an inner Heat strengthned clear float glass 6mm thick, spacer tube 12mm wide, dessicants, including primary seal and secondary seal (structural silicone sealant) etc. all complete for the required performances, as per the Architectural drawings, as per the approved shop drawings, as specified and as
directed by the Engineer-in-Charge. The IGUs shall be assembled in the factory/ workshop of the glass processor. (Payment for fixing of IGU Panels in the curtain glazing is included in cost of item No.25.2) For payment, only the actual area of glass on face # 1 of the glass panels (excluding the areas of the grooves and weather silicone sealant) provided and fixed in position, shall be measured in sqm.

(i) Coloured tinted float glass 6mm thick substrate with reflective soft coating on face # 2, + 12mm Airgap + 6mm Heat Strengthened clear Glass of approved make having properties as visible Light transmittance (VLT) of 25 to 35 %, Light reflection internal 10 to 15%, light reflection external 10 to 20 %, shading coefficient (0.25- 0.28) and U value of 3.0 to 3.3 W/m2 degree  etc. The properties of performance glass shall be decided by technical sanctioning authority as per the site requirement.

sqm 3250.95
25.4 Extra for openable side / top hung vision glass panels (IGUs) including providing and supplying at site all accessories and hardwares for the openable panels as specified and of the approved make such as heavy duty stainless steel friction hinges, min 4 -point cremone locking sets with stainless steel plates, handles, buffers etc. including necessary stainless steel screws/ fasteners, nuts, bolts, washers etc. all complete as per the Architectural drawings, as per the approved shop drawings, as specified and as directed by the Engineerin- Charge.
 
sqm 3163.10
25.5 Providing, fabricating and supplying shadow box of required size and shape, for fixing in the spandrel portion of the structural glazing, in linear as well as curvilinear portions of the building by providing semi-rigid, inorganic, non-combustible fibre glass wool insulation 50 mm thick, conforming to IS: 8183 and BS: 3958 Part 5. The insulation layer shall have facing (factory bonded on surface # 1 of the fibre glass insulation layer), of black non-woven fibre glass tissue of nominal thickness 0.5 mm and nominal mass not less than 60 gm /sqm, made of randomly oriented glass fibres distributed in a binder by awet-lay process including fixing 1.5 mm thick solid aluminum sheet backing using, 6 mm thick cement board including SS rivets, nuts, bolts, washers etc complete. sqm 1883.55
25.6 Providing and supplying Spandrel Glass Panels comprising of 6 mm thick heat strengthened monolithic float glass of approved colour and shade with reflective soft coating on surface # 2 of approved colour and shade so as to match the colour and shade of the IGUs in the vision panels etc. ,all complete for the required performances as specified, as per the Architectural drawings, as per the approved shop drawings, as specified, and as directed by the Engineer- in- Charge. For payment, only the actual area of glass on face # 1 of the glass panels (but excluding the area of grooves and weather silicone sealant) provided and fixed in position, shall be measured in sqm. (Payment for fixing of Spandrel Glass Panels in the curtain glazing is included in cost of relevent Item*).“(i) Coloured tinted float glass 6mm thick substrate with reflective soft coating on face # 2, having properties as visible Light transmittance (VLT) of 25 to 35 %, Light reflection internal 10 to 15%, light reflection external 10 to 20 %, shading coefficient (0.25- 0.28) and U value of 3.0 to 3.3 W/m2 K etc. . The properties of performance glass shall be decided by technical sanctioning authority as per the site requirement. sqm 2127.95
25.7 Item Shifted to Sub Head 8 as Item no 8.32    
25.8 Design supply & installation of suspended Spider Glazing system designed to withstand the wind pressure as per IS 875 (Part-III). The Suspended System held with Spider Fittings of SS-316 Grade Steel of approved manufacturer with glass panel having 12 mm thick clear toughened glass held together with SS- 316 Grade Stainless steel Spider & bolt assembly with laminated glass fins 21 mm thick. The Glass fins and glass panel assembly shall be connected to Slab/ beams by means of SS- 316 Grade stainless steel brackets & Anchor bolts and at the bottom using SS channel of 50x25x2mm using fastener & anchor bolts, non staining weather sealants of approved make, Teflon/ nylon bushes and separators to prevent bi-metallic contacts, all complete to perform as per specification and approved drawings. The complete system to be designed to accommodate thermal expansion & seismic movements etc. The joints between glass panels (6 to 8 mm) and gaps at the perimeter & in U channel of the assembly to be filled with non staining weather sealant, so as to make the entire system fully water proof & dust proof. The rate shall include all design, Engineering and shop drawing including approval from structural designer, labour, T&P, scaffolding, other incidental charges including wastage, enabling temporary services all fitting fixers nut bolts, washer, Buffer plates, fastener, anchors, SS channel laminated glass etc. all complete. For the purpose of payment, actual elevation area of Glazing including thickness of joints and the portion of Glass panel inside the SS channel shall be measured. sqm 8130.45

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