Fasteners
All fasteners are self-taping self drilling metal screws and hexagon headed. The galvanized fasteners are equipped with steel and neoprene washers.

Sealant

The tape sealer is rubber base compound. The compound is non-hardening, non-corrosive to metal and has excellent adhesion properties. Their service temp. shall be from -54^O C to 70^O C The sealant shall be installed at lateral and longitudinal roof panel overlaps.

Closures
Closures shall be rubber or equivalent, matching the profile of roof or wall panels. They shall be installed along the eave in order to ensure tightness of the building.

Gutters
Gutter shall consist of box shaped, galvanized steel, 0.7 mm nominal thickness, color coated on both sides. The gutters shall be supported by galvanized strips attached to the eave member at a min spacing of 1000mm. The face of the gutter shall match the profile of the rake trim. The gutter apron shall extend under the roof panel to provide positive counter flashing and shall be sealed with closures and sealant as required to ensure weather tightness.

Down spouts
The downspouts shall be P.V.C. pipes 4" diameter or rectangular shaped, color coated galvanized steel, 0.5 mm nominal thickness and 100 x 100 mm cross sectional dimensions.

Flashing and Trims
Flashing and trims shall be furnished, wherever necessary to provide watertightness and finished appearance. Galvanized steel for flashing and trims shall be color-coated with polyester over corrosion primer. (Total thickness 30 microns). The non-exposed surface shall be color-coated with8-10 microns thickness.