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Roofing Installations

We are widely well experience of Roofing installation in india. Key advantages:
  • Aesthetics: A palette of colours provide you with attractive choices!
  • Durable: Four layers of protective coating ensure high durability.
  • High Tensile Strength: The double-ribbed profile accords it 550 mpa strength, which allows higher spacing of purlins of save streel.
  • Corrosion Resistant: Primer coating on the top offers better resistance to corrosion.
  • Leak Proof: The Anti-Capillary Groove and Return Lap makes the sheets leak proof.
  • High Load Bearing: Two stiffening ribs between the pitch allow better load bearing & section properties.
  • Lightweight: Lighter sheets give you design flexibility with quick installation!
  • Weather Resistant: Equipped for diverse environments & weather conditions.
  • Less Heat Transfer: High reflective value coating help you save energy & money!





FIXING PROCESSURE


ROOFING

Lift sheets onto roof supports with ribs up and all with overlapping ribs (Female) facing towards starting edge To commerce fixing place the first sheets in position with the female in line with other building elements and fasten as recommended. Lap the female rib( with turned-down free edge) of the second sheet over the male rib(with turned-out bottom edge) of the first sheet and insert recommended side lap fasteners to hold the lap firmly in place before fastening the second sheet procedure for subsequent SHEET.



WALLING(CLADING)

For walling applications follow the procedure outlined for roofing. The recommended minimum end lap for vertical wall cladding is 100 mm. When the roof pitch is less 15 deg., or where the roof is exposed to extreme weather conditions, the tray between the ribs should be turned up approx. 80 deg. At the high end of the roof sheeting and turned down slightly at the low end. As Turn-Up tool is available for this operation which can be carried out before or after sheets are fixed in position. If turned up after fixing, at least 25 mm clearance is required at the end of the sheet to position the tool. Do not stand on ribs except over supports. Should it be necessary to use two or more end lapped sheets to provide full length coverage of the roof run, lay each line of end lapped sheets complete from bottom to top of the roof before proceeding to the next line of sheets.


Minimum end lap should be 150 mm, and for roof pitches below 7 deg. Lap should be sealed with a recommended sealant. The maximum roof run from top to bottom should not exceed 27500 mm for a single run of sheeting. Expansion joints are required in sheeting for longer roof runs.


LOCATION OF FASTENERS
At Supports
Roofing may be fastened by conventional crest fixing to timber and steel supports; in each case there should be four fixings per sheet at all supports. Use only crests fixing for roofs. Wall claddings may be fixed by crest or valley fixing.

         IMPORTANT:
All fasteners located in pan to be as close as possible to ribs as shown.


Side Lap Fasteners

Lap fasteners are essential to hold the side laps firmly in place at midspans for purling spacing over 900 mm and also for girt spacing over 1200 mm. In the applications where valley fixing is Ed, a side lap fastener is also required alongside each valley fastener, or use a crest fastener at side lap.


RECOMMENDED FASTENERS

It should be fixed with the following hexagonal washer head with seal fasteners which are available form in corrosion protected zinc coated finishes with color heads or in stainless steel.

Fixed through Crest to Hardwood Support
Type 17 No. 12-11 x 65 mm (self drilling)

Fixing Through Pans to Hardwood Supports (for walls only)
Type 17 No. 10— 12 x 25 mm (self-drilling)




FIXING THROUGH CREST TO STEEL SUPPORTS
FOR STEEL UP TO 5.3 MM THICK NO. 12-14 X 45 MM (SELF DRILLING)
FOR STEEL UP TO 6.5 MM + OVER NO. 12-14 X 55 MM WITH PRE-DRILLED HOLES