General Building Construction 1

27.2.01 MODULE UNIT DESCRIPTION

This module unit involves construction of buildings and related building works form foundations, walls, roofs, finishes and demolitions works.

PURPOSE

The module is designed to equip the trainee with knowledge, skills and attitudes necessary to enable the trainee to work in a workshop or in a construction site.

SPECIAL REQUIREMENTS

The trainee should have basic knowledge in Technical/building drawing and skills in use of tools and equipment used in building trades as well as building materials.

Objectives

At the end of this module unit, the trainee should be able to: .Appreciate the need of observing safety rules at the place of work .Demonstrate ability to use tools and equipment safely and correctly .Appreciate the need of matching colours of the interior furnishings .Understand the purpose of fixing or applying finishes to a building or construction project

27.2.03 MODULE UNIT SUMMARY AND TIME ALLOCATION

CODE	MODULE UNIT	SUB-MODULE UNIT	TIME
27.2.1	UPPER FLOORS	Types of floors Design requirements for upper concrete floors Openings and services in upper concrete floors	24
27.2.2	ROOFS	Functional requirement Timber roofs Concrete roofs Forms of roof construction	24
27.2.3	CONSTRUCTION OF ROOFS	Types of roof structure Type of roof materials designing roof structures	24
27.2.4	ROOF COVERING	Types of roof covering Pre-coated and granulated sheets Estimating	16

THEORY

Objectives

By the end of the sub-module unit, the trainee should be able to: describe types of upper floors design upper concrete floors provide openings and services in upper concrete floors

=27.2.1T1

Key points

Types of floors timber concrete solid concrete precast concrete floor hollow pots Design requirements for upper concrete floors Openings and services in upper concrete floors electrical conduits pipes and ducts

PRACTICE

27.2.1P0 Specific Objectives

By the end of the sub-module unit, the trainee should be able to:

1. . cast and cure concrete in upper floors
2. . construct suspended timber floors

27.2.1P1 Content

• Casting and curing suspended concrete floors
  • concrete mix
  • compaction
  • curing
• Construction of suspended timber floors
  • joists and beams
  • decking

Competences

Ability to:

• Cast and cure concrete upper floors
• Construct suspended timber floors

Activity

Discussion Making drawings Demonstrations

Reading

Tools Working drawings Field trips Text books Models Charts

Assessment

Observation Practical work Oral test Written test

27.2.2 ROOFS THEORY

27.2.2.1T TYPES OF ROOFS 27.2.2.1T0 Specific Objectives By the end of the sub- module unit, the trainee should be able to: a) state the functional requirements of roofs b) describe types of roofs c) describe members of a roof

27.2.2.1T1 Content • Functional requirements of a roof - appearance - strength - durability - weather resistance - fire resistance • Timber roofs - single roofs o collar o couple o close couple o lean to - double roofs o framed roofs o trussed roof o pitched roofs • Concrete roofs • Steel roofs • Special roofs - shell roofs • Members of a roof - rafters - purlins - tie beam

Competence Ability to: • Design roofs

Suggested Teaching/Learning Activities • Discussion • Taking notes

Suggested Learning Resources • Chart • Hand outs

Suggested Assessment Methods • Oral test • Written test • Assignment

27.2.3 CONSTRUCTION OF ROOFS THEORY 27.2.3T0 Specific Objectives By the end of the sub-module unit, the trainee should be able to: a) identify the type of roof structure to be constructed b) outline the type of materials used for constructing the roof structure c) design selected roof structure

27.2.3T1 Content • Types of roof structures - single - double - trussed triple • Types of materials - timber - steel - concrete • Designing roof structures - span - rise - pitch - type of roof coverings materials - weather

PRACTICE 27.2.3P0 Specific Objectives By the end of the sub-module unit, the trainee should be able to: a) cost materials for the roof structure b) construct the roof structure c) fix the roof structure in position

27.2.3P1 Content • Costing materials - type - quantities/sizes - price list • Roof structure construction • Methods of joining roof structure to the walls

Competences Ability to: • Cost roof materials • Select materials for a given roof • Construct a roof • Fix a roof structure in position

Suggested Teaching/Learning Activities • Discussion • Lecture • Observation • Sketching • Illustration • Calculations • Demonstration

Suggested Learning Resources

• Photos • Site visits • Materials • Tools - tape measure - hammer - nails - bolts - saw • Working drawings • Charts

Suggested Assessment Methods • Phased tests • Practical projects

27.2.4 ROOF COVERINGS THEORY 27.2.4T0 Specific Objectives

By the end of the sub-module unit, the trainee should be able to: a) describe types of roof coverings b) select roof covering materials c) estimate materials for covering a roof

27.2.4T1 Content • Types of roof coverings: - grass - makuti - corrugated iron sheet (G.C.I) - tiles - asbestos sheets • Precoated and granulated sheets • Estimating - measurements - bolting - laying - tying

PRACTICE 27.2.4P0 Specific Objectives By the end of the sub-module unit, the trainee should be able to: a) estimate the quantity of materials for covering a roof b) cost the roof covering materials c) fix roof coverings

27.2.4P1 Content • Estimation - measurements • Costing roof coverings - measurements • Methods of fixing - nailing - bolting - laying - tying

Competences Ability to: • estimate • cost roof coverings • Fix roof coverings • Select roof coverings

Suggested Teaching/Learning Activities • Taking measurements • Calculations • Fixing roof coverings - Nailing - Bolting - Laying - Tying

Suggested Learning Resources • Realia • Working drawings • Measuring tools • Price catalogues • Calculators • Illustrations • Roof covering materials

Suggested Assessment Methods • Practical exercise • Projects • Oral tests • Assignments