Construction of Wooden Eco Cabins/Hut near Bungus Hut Range Mawer

Site clearance, setting out, layout and minor site preparation

Earthwork excavation for isolated RCC footings/pedestals in ordinary soil including dressing and disposal

Providing and laying in position cement concrete of specified grade including curing butexcluding the cost of centring and shuttering. All work upto plinth level with: 4.4.2 1:1½:3 (1 cement :1½ coarse sand: 3 graded stone aggregate 20 mm nominal size)

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level

Labour for providing, cutting, sawing, dressing, shaping, jointing and fixing departmental Deodar timber of approved sections and dimensions for structural and architectural works including posts, beams, rafters, purlins, wall framing, door/window frames, fascia and other members, including all necessary labour, tools and plant, cutting and wastage, joints, drilling, notching and fixing with necessary hardware complete as directed by the Engineer-in-Charge. Deodar timber shall be supplied departmentally.

RCC/timber floor support, anchors, base plates and connection hardware

Providing corrugated G. S. sheet roofing including vertical/curved surface fixed with polymer coated J or L hooks, bolts and nuts 8mm diameter with bitumen and G.I limpet washers or with G.I. limpet washers filled with white lead, including a coat of approved steel primer and two coats of approved paint on overlapping of sheets complete (upto any pitch in horizontal/vertical or curved surface)excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required.

Providing, supplying and fixing seasoned and properly treated timber eaves boards/fascia boards of approved species, quality, thickness and dimensions, for roofing/eaves projection, including cutting, sawing, planing, dressing, sizing and shaping to the required profile, making all necessary joints, mitres, notches and grooves, and fixing securely to the roof truss/rafter ends and supporting members with approved galvanized/SS screws, nails, bolts, clamps and other necessary hardware, including provision of joints and laps wherever required.

complete rooftop solar photovoltaic (SPV) power generation system for Bungus Hut, of suitable capacity as per approved load requirement, comprising high-efficiency mono-crystalline solar PV modules of approved make and BIS/IEC compliant specifications, complete with solar inverter/PCU of suitable capacity, MPPT charge controller, LiFePO₄/lithium-ion battery energy storage system of adequate capacity for backup, and all associated electrical and mechanical works. 5 kW mono-crystalline solar panels The system shall include hot-dip galvanized MS/aluminium mounting structure suitable for rooftop installation, including base plates, clamps, brackets, nuts, bolts and other accessories, properly anchored/fixed to the roof without compromising waterproofing; DC solar cables of suitable size, AC cables, cable trays/conduits, UV-resistant conduits, MC4-compatible connectors, junction/combiner boxes, DC and AC isolators, MCB/MCCB, DC/AC surge protection devices (SPD), earthing arrangements, lightning protection wherever required, energy meter, distribution board, changeover/automatic transfer arrangement where applicable, and all necessary protection and control equipment. The item shall further include complete AC/DC wiring and interconnections from solar modules to inverter/PCU, battery bank and main distribution board, including necessary switches, sockets, lighting connections and connection to the existing electrical system of the Bungus Hut, wherever required. Provision shall be made for remote monitoring/display of solar generation, battery status and system performance, if supported by the selected inverter.

Roof waterproof underlay/membrane