Build Your Own House

25 January 2014BARUAH DEVELOPERS &

INFRASTRUCTURE PVT. LTD.

BARUAH DEVELOPERS &

INFRASTRUCTURE PVT. LTD.JORHAT

AND

MAGNIDUS DESIGN PVT. LTD.NEW DELHI

PRESENTSUNDER THEIR CORPORATE SOCIAL RESPONSIBILITY



BUILDYOUROWNHOUSE (home)



What is a HOUSE ?



Webster’s Dictionary:

“A Structure intended or used as a habitation or shelter for animals of any

kind but especially a building or edifice for the habitation of man, a dwelling

place, a mansion”.

Oxford Dictionary:

“A building for human habitation, especially one that consists of a ground

floor and one or more upper storeys”.

A House is to live in, not to look on



What does a HOUSElook like ?



Source: European Commission, Institute for Environment and Sustainability



Polar, Moist Cool Temperate, Moist

Tropical, Wet Tropical, Dry



Fallingwater, Pennysylvania, USA

Architect: Frank Lloyd Wright

Farnsworth House, Illinois, USA

Architect: Mies Van Der Rohe

Some Famous Houses Villa Savoye, Poissy, France

Architect: Le Corbusier



What is a GREEN HOME ?



1. Save Construction Cost

2. Save Operational Cost

3. Payback of Construction Cost

4. Suitable for the Climate

5. Comfortable Living

6. Save the Environment



Green Building Criteria

• Site Selection

• Materials and Finishes

• Water Management

• Waste Management

• Energy Saving/ Energy Generation

• Comfortable Interior Environment



What are the parts of a HOUSE ?



Public

Semi-private

Private

Entrance Gate, Lawn, Courtyard,

Garden, Porch, Portico, Veranda,

Drawing Room

Guest Bedroom, Living Room, Kitchen,

Dining Area, Mandir, Garage, Toilet,

Kitchen Garden

Master Bedroom & Master Toilet,

Children’s Bedroom, Parents’ Bedroom,

Study, Strong Room, Balconies

Outside world



How to plan a HOUSE ?



1. Talk to family

2. Choose the right Plot

3. Meet an Architect

4. Meet a Vaastu Consultant

5. Concept Design

6. Apply for Permission from Authorities

7. Prepare Estimate and Apply for Bank Loan

8. Get structural design from engineer

9. Get Plumbing & Electrical Design from Engineer



Choosing the plot

Land-use• Residential• Mixed Use

Legal Documents• Jamabandi• Sale Deed and Chain of Ownership• Non-Encumbrance Certificate• Revenue Receipts• Mutation Order

Location• Transport facilities• Distance from Workplace• Distance from Healthcare/Education Institutions• Public Infrastructure

Land adequacy• Access• Orientation• Shape and Size



Importance of Architects

• Investment, not Expenditure

• Savings in Overall Cost

• Creating Total Environment

• Creative Problem Solving

• Good Design

• Good Quality of Construction

• Longevity



Importance of Structural Engineer

• Structural engineers design structures to withstand stresses and pressures, such as weather and human use. They ensure buildings and other structures do not bend, twist, collapse or vibrate and remain strong and secure throughout their use.

• Structural engineers help to design most structures including houses, theatres, sports venues, hospitals, office blocks, bridges, oil rigs, space satellites, ships and aircraft. They work in close partnership with architects.

• Structural engineers have to choose appropriate materials, such as bricks, concrete, wood and metal, to meet design specifications. When construction has begun, they are often involved in inspecting the work and advising contractors.

• They also examine existing buildings and other structures to test if they are structurally sound and still fit for purpose. Structural engineers have to make efficient use of funds and materials in order to achieve structural goals.



What do structural drawings look like?







What are the responsibility of a Site engineer

A site engineer is part of the site management team, and takes some of the responsibility forsecurity, health and safety, and organising and supervising materials and people. Site engineersmark out the site, make sure designs are applied correctly and liaise with main and sub-contractorsand the site manager. Regular liaison with the client, its representatives, and any consultants isanother key part of the job.

What are the responsibility of a labour contractor and Mason

1) The labour contractor can not take responsibility of safety measures of your construction nor he can give you the structural design.

2) His first and foremost duty is to understand the detail drawing prepared by a structural engineer. Neither he can reduce nor he can add anything without permission from the Engineer.

3) He will ensure that his Mason and labour will perform their duty as per schedule and norms given by the Engineer,



How to build the HOUSE ?



1. Choose and Purchase appropriate Materials

2. Hire a (labour) Contractor

3. Commence construction

4. Construction administration/ supervision

5. Interior Design & Execution

6. Landscape Design and Execution

7. Apply for Completion Certificate

8. Live Happily Ever After



Agreement With Contractor

• Work Procedure and Sequencing

• Time Schedule

• Specifications of Finishes

• Quantity measurements

• Payment Terms



Best Construction Practices



Choosing the right materials

Cement• Reputed brand• Well stored, free from moisture• Latest manufacture (2-3 months)• Colour immaterial

Sand• Free from silt, clay and salts• May need washing

Stone Aggregate• Roughly square in shape• 10mm and 20mm in the ratio of 35:65

Steel• Reputed Brand• As per Structural Design



Foundations – depending on load and soil type

• Spread footing

• Isolated and Combined footing

• Pile foundation

• Raft foundation



RCC Construction

Reinforcement• Lap Joint - Minimum: 50 x rod diameter• Stirrup Spacing – Uniform as per design

Shuttering and De-shuttering• Leak proof• Formwork face to be treated with a mixture of diesel and grease• Columns: 24 hours• Slabs: 14 days• Beams: 21 days

Mixing and Pouring• Use Measurement Boxes• Avoid hand mixing if possible• Use Mini Batching Machine• Pour from not more than 5’ height• Use concrete vibrators

Curing• Within 12-24 hours of pouring• Ponding for horizontal surfaces• Wet jute mats (soti) for vertical surfaces

NO



Brickwork and Plastering

Brickwork• Bricks should be well burnt and hard• Soaked in water for 8hrs• Joint thickness not more than 10-12mm• Not more than 1m height per day• Proper curing for 10 days

Plastering• Use prepared mix within 1 hour• Use chicken wire mesh on joints between RCC and brickwork• Continuous curing for 10 – 14 days

Location Plaster Composition

Outside Plaster 1:4 to 1:5

Inside Plaster 1:5 to 1:6

Ceiling Plaster 1:3 to 1:4



Finishes

Painting• All cracks should be filled and smoothened• Plaster > Paper > Primer > POP > Primer > Paint (2-3 coats)

Waterproofing• Proper drainage slopes• Impermeable concreting – proper compaction• Reduce joints and corners• Apply DPC at plinth level• Chemical / Membrane based waterproofing for roofs

Flooring• Cement Concrete Flooring• Terrazzo Flooring• Tiles – 4 hours of soaking and 7 days of curing



Utilities

Doors and Windows• Use holdfasts instead of bolts• Opening size and panel material depends on climate and light requirement

Electrical• Reputed Brands for fixtures• Proper earthing• Use Mini Circuit Breakers (MCB)• Location of Switchboards in accordance with interior design

Water Supply and Sanitation• Store 135 litres x no. of family members per day• Use water level sensor to save water and electricity and prevent spillage and seepage• Avoid cross connection between water supply and waste water pipes• Sanitary plans should be submitted for permission



Heat Insulation and Ventilation

Roof Insulation• Insulating & reflecting material• False Ceiling with air gap

Wall Insulation• Cavity Walls• Walls with low thermal mass – wattle & daub walls

Window shading and Glare Protection• Verandas and patios• Chajjas and sun shades• High reflectance glass

Ventilation• Adequate cross air circulation for all habitable areas• Louvers and Jaali walls



Rain Water Harvesting

Benefits• Reduces demand of supplied water• Reduces flooding• Recharges groundwater• Free

Uses• Washing• Flushing• Irrigation

How much?

Say 10mm (0.01m) rain everyday on a 100 sqm. roof, on a monsoon day

Total water that can be harvested per day = 0.01 x 100 = 1cum. or 1000 litresEnough for 7 persons



Drainage Recommendations

• Site should not be raised more than 6” (150mm) above adjoining road level

• Storm water drainage plans should be submitted to Municipality for permission before

construction

• Projects with Rain Water Harvesting schemes should get fast track clearance

• Boring without Rain Water Harvesting should be prohibited in Urban Areas



Some Common Construction Mishaps



Honeycomb In RCC

1. In concrete, a rough, pitted surface resulting from incomplete filling of the concrete against the formwork, often caused by using concrete that is too stiff or by not vibrating it sufficiently after it has been poured.2. Voids in concrete resulting from the incomplete filling of the voids among the particles of coarse aggregate, often caused by using concrete that is too stiff.3. In sandwich panel construction or in some hollow-corridors, resin-impregnated paper is fabricated into a network of small, interconnected, open-ended, tubular hexagons laminated between two face panels to provide internal support



Common Mistakes made by Masons

End column of a beam Stirrup spacing should be uniform



Importance of Public Awareness





Presentations & Public Speaking

Build Your Own House