ACHIEVING QUALITY STANDARDS

A LEARNING & SHARINGEXERCISE

INTERIM REVIEW WORKSHOP

QUALITY OF BASIC MATERIALS

• Foundation Stone – Size, hardness• Bricks and blocks – Size and strength• Sand – Free of excessive clay and impurities• Metal – Consistency of size• Timber – Quality and sizing• Roof tiles – Consistency of quality

How can quality of the above materials be assured?

REJECT POOR QUALITY, USE GOOD QUALITY BRICKS

REJECT POOR QUALITY BLOCKS

SAND WITH EXCESSIVE CLAY/IMPURITIES; NOT TO BE USED FOR MASONRY AND CONCRETE WORK

CHECK ON-SITE FOR SAND QUALITY

REJECT POOR QUALITY ROOFING TIMBER

REJECT POOR QUALITY TILES

REJECT MISMATCHED TILE BRANDS, AND NOTICABLE COLOUR DIFFERENCES

CHECK FOUNDATION TO FINISHES

• Foundation

• Plinth beam

• Compacted earth fill

• Superstructure

• Roof

• Doors and windows

• Wall and floor renderings

• Wall finishes

FOUNDATION PROBLEMS

FOUNDATIONS – PROBLEM/SOLUTION

FOUNDATION PROBLEMS

PLINTH BEAM PROBLEMS

PLINTH BEAM PROBLEMS

SAFE SOIL – NO PLINTH BEAM NEEDED

COMPACTED EARTH FILL PROBLEM

COMPACTED EARTH FILL SOLUTION

WALLS TO BE KEYED AT JUNCTIONS

QUALITY SUPERSTRUCTURE MASONRY

NOTE SERIOUS ERROR IN CASTING LINTEL

CORNER REINFORCEMENTS MISSING

CORNER REINFORCEMENTS MISSING

REINFORCEMENT AT CORNERS VITAL

• Clearly explain to masons and beneficiaries why vertical reinforcements must be used at key corners of the building

• Always check that this is done

LINTEL & CORNER REINFORCEMENTS

LINTEL CASTING - LOCAL PRACTICE; OKWITH PRECAUTIONS

CANTILEVERED SIDE EAVES FOR ROOF: GOOD PRACTICE

CANTILEVERED SIDE EAVES FOR ROOF: GOOD PRACTICE

WHAT SHOULD BE DONE, WHAT AVOIDED?

PAINT ROOF TIMBERS BEFORE PLACEMENT

NOTE ROOF TIMBERS UNPAINTED BEFORE PLACEMENT, & RECTIFY PROMPTLY

NOTE ROOF TIMBERS UNPAINTED BEFORE PLACEMENT, AND RECTIFY PROMPTLY

CHECK QUALITY OF DOOR & WINDOW FRAMES

PLACEMENT OF DOORS & WINDOWS: GOOD PRACTICE

NOTE REINFORCEMENTS NOT BENT OVER WALL PLATE; RECTIFY PROMPTLY

FAULTY ROOF SUPPORT TIMBER FRAMING

MISSING: ADEQUATE PAD SUPPORT FOR ROOF TIMBERS

WHAT SHOULD BE AVOIDED?

RIDGE PLATE NOT IDEALLY PLACED!

IMPROPER PLACEMENT OF ROOF TILES

NOTE ERRORS IN ROOFING ELEMENTS & RECTIFY PROMPTLY

SINGLE END BATTEN ON EDGE UNSTABLE & IMPROPER; FIX DOUBLE BATTENS

BARGE BOARD IMPROPERLY PLACED; BATTEN ENDS EXPOSED

INSUFFICIENT CONCRETE BANDS @ ROOF

INSUFFICIENT CONCRETE BANDS @ ROOF

CHECK IMPROPER FIXING OF DOOR/WINDOW FRAMES & HINGES; RECTIFY PROMPTLY

CHECK ON QUALITY OF PLASTER RENDERING

HOW ROOF & CHIMNEY STACK LEAK RELATED PROBLEMS CAN BE RESOLVED

STRIVE TO IMPROVE DESIGN DETAILS

ACHIEVING QUALITY STANDARDS

ALWAYS AIM FOR THE BEST QUALITY IN CONSTRUCTION;

LEAVE A LEGACY THAT ENDURES!

THANK YOU

Vasant PullenayegemHousing Consultant