Preview

Different Techniques Used to Construct

Good Essays
Open Document
Open Document
1075 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Different Techniques Used to Construct
UNIT 6. BUILDING TECHNOLOGY IN CONSTRUCTION
MR. BARTON

P6- Describe the techniques used to construct and finish the component elements of a superstructure.

Domestic Dwellings

The two most common types of construction are:

Traditional block Cavity wall construction
And
Modern Timber Frame Construction

Traditional Block Cavity Wall

The fundamental principle of a cavity wall is to prevent moisture moving from outside to inside. A cavity wall consists of two separated walls or ‘leaves’ joined by rust proof wall ties. This allows the exclusion of dampness and the prevention of heat loss by incorporating insulation.
Moisture will penetrate masonry walls where hairline cracks exist between masonry unit and mortar. Water which runs down the exterior wall surface will be drawn towards the inner cavity due to wind pressure exerted on the exterior of the wall and the negative pressure present within the cavity.
Providing a clean air space will allow this moisture to flow unobstructed down the cavity face of the outer leaf. Flashing, installed at recommended locations will then divert this moisture back to the building's exterior through weepholes. Proper drainage of moisture will reduce the chance of efflorescence and freeze-thaw damage.
The thickness of cavity wall can vary. This is mainly due to the thickness of insulation used. When constructing cavity wall leave minimum 50mm for the residual cavity.
The steps of building a traditional block cavity wall domestic building:
1. Determine the overall cavity width by adding the thickness of insulation required to the residual cavity width (50 mm minimum).
2. All masonry walls will rest on a foundation or concrete slab. Prior to erecting a block or brick wall, the foundation must be clean so the mortar will adhere to it. It should also be relatively level.
3. Block work is built up to DPC level. This is usually located at 250mm above ground level.
4. Damp Proof Course laid on block work course and lapped

You May Also Find These Documents Helpful

  • Satisfactory Essays

    NT 1310 Unit 8 Lab 1

    • 595 Words
    • 2 Pages

    Standard bore diameters are 126 +1/-0 um for single mode connectors and 127 +2/-0 um for multimode connectors. Because of fiber cladding diameter's variation from manufacturing, some fiber…

    • 595 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Nt1330 Unit 5

    • 800 Words
    • 4 Pages

    3.Windows in these walls must be non-operable fire windows (exceptions for bathroom toilet or laundry windows with an area smaller than 1.2m2…

    • 800 Words
    • 4 Pages
    Good Essays
  • Good Essays

    - Walled: a narrow upright structure, usually built of stone, wood, plaster, or brick, that acts as a boundary or keeps something in or out…

    • 1235 Words
    • 5 Pages
    Good Essays
  • Powerful Essays

    Structure Units City & Guilds Level 2 NVQ Diploma in Trowel Occupations (Construction) (6570-02) Contents 1 2 3 4 Introduction Structure Centre requirements Approval 4 5 6 6 Resource requirements 6 Learner entry requirements…

    • 17554 Words
    • 127 Pages
    Powerful Essays
  • Satisfactory Essays

    Aqa Unit 3 Exam

    • 1360 Words
    • 6 Pages

    Type of building structure Adobe (baked mud and clay) Unreinforced masonry Reinforced masonry (non-seismic design) Steel framed buildings Reinforced masonry (seismic design)…

    • 1360 Words
    • 6 Pages
    Satisfactory Essays
  • Good Essays

    Task 1 And 3 Combined

    • 893 Words
    • 3 Pages

    Why concrete? The main performance for this material is for the foundation to resist the load applied. This is very important as if it could not resist the load, the concrete foundation would break down and crumble and therefore would not be able to hold the materials above. The foundation must also be able to spread out the load over a bigger area as if it is not able to do this, the load will be applied to one area of the foundation only and that area will not be able to hold all of the load, which is why the load applied must be spread out over a bigger area.…

    • 893 Words
    • 3 Pages
    Good Essays
  • Good Essays

    The cavity wall insulation is all about filling the gap between inner and outer wall of external walls of houses. The insulation has to be 50mm minimum to serve the purpose of resisting heat flow through external masonry walls. Previously, from the year of 1920 onwards, buildings in the UK were constructed keeping such gaps to prevent dampness in the homes. However, cavity insulation have been observed to hinder comfort and energy savings of households. That's why these cavity walls are considered to fill the gap with insulation.…

    • 357 Words
    • 2 Pages
    Good Essays
  • Good Essays

    All the studs and joists are held together typically by metal fasteners. On top of the walls would be another horizontal wooden platform for the next floor. Each floor would be assembled in a similar fashion. The roof is formed of rafters (sloping joists) or wood trusses. The standard interior wall sheathing is gypsum board (drywall), which provides fire-resistance, stability, and a surface ready for finishing. On the exterior it is usually plywood sheathing with bricks layered on top for a structurally sound and esthetic building. The light timber framing assembly is a lot faster than the traditional method it is light, and allows quick construction with no heavy tools or equipment. Every component can easily be easily transported. The building can be built in a variety of shapes, and can be clad with a variety of materials. There are a huge variety of products and systems tailored to this type of construction. The light timber framing spread the load evenly throughout the house with supports built in weak spots. As the load is spread evenly throughout the structure it becomes structurally…

    • 523 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Shoring Violations

    • 1052 Words
    • 5 Pages

    deep, thus according to the table 7.2 for unstable soil, the choice is either 4’ or 2’ for the uprights horizontal spacing (uprights may be a solid “sheeting” or spaced from 2’ to 8’ apart to prevent cave-ins), as well as cross braces is either 4’ or 2’ for screw jacks of 2” STD or timbers of (6” x 6”) to hold either horizontal or vertical shoring members in place. Refer to the side table 7.1 and assume the width between (6”-8”) for house line, since it was not reported in the result investigation. However, the minimum number of the horizontal cross braces, either screw jacks or timbers, required for each pair of uprights shall be determined by the number of 4-foot zones or segment into which the depth of the trench may be divided, yet in no case shall be less than two cross braces or jacks. Further, pre planning will reduce the chance of an accident and protect people nearby work site and maintenance operator from falling into the excavation, and it will protect them from possible exposure of atmospheric hazards in the excavation as well (such as leaking gas lines or storage tanks) and define how maintenance operator will get in and out of the excavation safely. An excavation with a depth of 4 ft. or more must have a means for entering and exiting such as a stairway, ladder, or ramp that has a non-slip surfaces employees’ safety may depend on how…

    • 1052 Words
    • 5 Pages
    Good Essays
  • Good Essays

    The major structural components of a residential basement are the walls and the floor. Cast-in-place reinforced concrete is the most commonly used material for both walls and the floor of contemporary basements, although reinforced masonry and pressure treated wood may be used for the walls. Basement walls must be designed to withstand lateral earth pressure and gravity loads from the upper floors.…

    • 505 Words
    • 3 Pages
    Good Essays
  • Good Essays

    the magic of bubble wrap

    • 667 Words
    • 3 Pages

    The bubble wrap resists changes in temperature and the air inside of the bubble changes gradually due to the movement of the molecules. Cavity wall insulation combines with captive air to act as a barrier in preventing loss of heat. So during winter or summer, the temperature inside the room would last longer whether it is cold or hot air.…

    • 667 Words
    • 3 Pages
    Good Essays
  • Better Essays

    Building Construction

    • 8401 Words
    • 34 Pages

    • Access & exposures – Stefan-Boltzmann law states that the intensity of thermal radiation is a function of the fourth power of the absolute temperature of the thermal radiation source. Every time the distance from a heat source is doubled, the thermal radiation level is reduced 4 times.…

    • 8401 Words
    • 34 Pages
    Better Essays
  • Good Essays

    Loft insulation

    • 437 Words
    • 2 Pages

    Heat loss through walls can be reduced using cavity wall insulation. This involves blowing insulating material into the gap between the brick and the inside wall, which reduces the…

    • 437 Words
    • 2 Pages
    Good Essays
  • Powerful Essays

    Arc Resistance Switchgear

    • 4386 Words
    • 18 Pages

    Unless manufacturer states a larger minimum clearance, the ceiling shall be located at a distance of 500 mm from the upper part of the test specimen. The lateral and rear wall shall be placed at 100 mm from the lateral and rear side of the test specimen in case of non accessible lateral or rear side. For accessibility of rear and lateral sides the walls shall be placed at a distance of 800 mm If the design is with exhaust duct the tests shall be performed with simulation of such exhaust ducts. Indicators These are pieces of black cotton clothes (150g/m2 so arranged that their cut edges do not point toward the test specimen. Care shall be taken to see that they can not ignite each other. Indicators shall be fitted at all accessible sides of the metal unit vertically up to a height of 2 m. The distance from the indicators to the switchgear shall be 30 cm.(for class A) and 10 cm (for class B). Indicators shall also be placed horizontally at a height of 2m above the floor on all accessible sides between 30 and 80 cm (accessibility A) or between 10 and 80 cm (accessibility B) from the unit. When ceiling is placed at a height of 2m above the floor, no horizontal indicator is needed. The length of mounting frame shall be bigger than the test specimen to take into account the possibility of hot gases escaping in slant direction (up to 45°). The area occupied by the indicators shall be at least 50% of the global area reserved to the indicators positioning.…

    • 4386 Words
    • 18 Pages
    Powerful Essays
  • Powerful Essays

    NEBOSH IGC2

    • 2184 Words
    • 10 Pages

    To avoid the unexpected collapse of the trench / excavation wall, the wall should be protected by…

    • 2184 Words
    • 10 Pages
    Powerful Essays