Installation

Instructions for Installation of Sheets

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Do's

Keep your weight evenly distributed over the soles of both feet to avoid concentration your weight on either heels or toes
Structure like tubes, truss, angles and channels (except Zinc coated supporting structures) should be painted before fixing the sheets
Cut materials on the ground and not on other material where hot particles can fall and cause damage to the finish of the sheet
Use neutral cure silicone rubber sealants
Immediately after installation / fixing, remove the guard film of pre-painted/ coated sheets. Non-removal of guard may cause condensation of moisture and degradation of inorganic coatings resulting in subsequent paint peel off
The rubber washer, component of self- drilling screws must be from materials compatible with roofing, walling and accessory material
Iron fines from drilling, saw cut chips & fasteners lying can cause rust stains
Leaving debris on the sheets may lead to such type of defects. Sweep, swarf from roof after finishing installation
Direct contact with cement foundation is not recommended for bare and pre-painted Galvalume & Pre-Painted Galvanized products. Accelerated corrosion can occur due to the lime contained in the cement

Do's

Crest fixing for roofs or walls – (A)
Valley fixing for walls only – (B)
The groove portion should be on the inner side. The air gap on the left ensures that water does not travel upwards –(C)
The groove portion should not be on the outer side. Improper contact makes the roof vulnerable to water leakages
Remove all metal scrap, drill particles, pop rivet mandrels and excess fasteners from the roof to avoid rust stains
It is important that shoes do not have small stones, steel drilling etc. embedded into the soles
Two types of dirt accumulate on buildings: dry soil and greasy or organic residues
The dry dirt, by itself, washes off with rain or high-pressure water spray
Greasy residues do not wash off in rain and hold dry soil and chalk tightly to the surface
Water can enter through the guard film, which may lead to paint peel off

Do's

Proper fastener installation procedures to be followed
For roll forming of pre-painted materials, rolls should be properly polished. There should not be any damage on the sheets. Clean the sheets to avoid damage to the paint finish
Maintain the roll forming equipment to achieve proper vertical and horizontal tooling alignment, as well as adequate clearance between the mating top and bottom spindle rolls to avoid abrading the coating
Guard film should be removed immediately after installation
Clean the roof with clean water or mild detergent by using soft cloth, mop or soft nylon bristle brush to avoid swarf stains and rusts
Use a power saw with a metal-cutting blade to cut thin metals. This results in fewer hot metal particles and leave less resultant burr than a carborundum disc
Metal debris from sawing, drilling and other construction possess should be removed during installation, otherwise, the metal fillings will red rust on the surface where they were deposited. Red rust of the metal filing can cause stain or discolouration on the surface of the panel whether it is bare of painted and cause appearance issue
Guard films are provided only for forming operations and avoid handling scratches
This water entrapment is because of the capillary actions of the gap between sheet which get entrapped in the packet while stacking/storage

Don'ts

Don’t walk on single rib, sheet, end laps gutter and skylight sheets
Don’t throw bird feed on the sheet. Bird dropping can damage the colour & aesthetics of the sheets
Do not leave debris on the sheets
Do not allow contact with Cement
Don’t install the roof sheeting during rains, sheets get wet and slippery
Do not allow dirt accumulation on the sheet
Don’t use stainless steel screws, J hook and carbon washer as they may damage the sheet
The groove portion should not be on the outer side. Improper contacts make the roof vulnerable to water leakages
Don’t use acetic acid based sealants which liberate aggressive by-products during curing which is detrimental to steel sheets
Never use abrasive or solvent type cleaners and wire brushes, steel wool, sponge scourers to clean the roof sheet as it softens the paint film
Do not leave metal filings on the sheets