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Week 7

FLIPPED CLASSROM Detailing for heat & moisture Basement: Tanking is effectively the placement of a waterproof membrane made typically out an artificial rubber around the building.

Walls: various strategies, surface outside; double skin wall; rain screen system. Roof: box gutter is used. Water drain outside. With eaves or non-eave. Eave will help to protect the wall surface *Joist need to be considered. Detailing doe moisture: For water to penetrate from the opening, conditions need to be made: (remove any one of the conditions and water will not be occur)   

An opening Water present at the opening A force to move water through the opening

To prevent water penetrating into a building THREE different strategies are employed (one is sufficient but two or more strategies are perused then there is added security In case one fail)   

Remove opening (windows or unplanned opening) Keep water away from opening (gutters can be used, downpipe has rusted in the back; open lap use to keep water away ) Neutralise the force that move water through open (Gravity, surface tension and capillary action, surface tension, air pressure, flashing)

Detailing for heat:    

Heat conducted through the building envelope Thermal mass is used to regulate the flow of the heat through the building envelope The building envelope and building elements are subject to radiant heat Controlling heat: > Thermal insulation : reduce heat > Thermal break: material like rubbers and plastic to reduce the heat transfer from outside to inside when using highly conductive material like metal > Double glazing/triple glazing: air space between glass panes reduce the flow of heats through glazed element > Radiation : reflective surface ; shading system

Rubber:        

Natural rubber: naturally grow in the rubber tree. Synthetic rubber Water proof 1.5times density of water Durable Easies recycle Cost effective Types & use (natural rubber ) > Seal > Gaskets & control joint > Flooring > Insulation > Hosing & piping Types & use (Synthetic rubber ) > Gaskets & control joints (epdm) > Control joints (neoprene) > Seals (silicone) Consideration : weather and damage ; protection: avoid from sun light

Plastic   

 

Use in various place and method. Able to be mode into different shapes Types and use > Thermal plastic :( PVC; polyethylene-insulation, polycarbonate-roofing , ) > Thermosetting plastic: can only be shape once, limited to recycle (polystyrene –insulation) > Elastomers: (EPDM – artificial rubber use to water prove roof/deck , silicon – range od ways, mainly water proof ) Low hardness Highly flexibility

    

Waterproof Low density ,light weight Poor conductor for heat and electricity Very cost effective Avoid sun exposure

Paints      

Main purpose is to protect and colour the main element Oil base / water base paint Water base is more common today, easy to use, durable and flexible , tools and brushes can be clean with water Properties is varies on the quality, colour Red wont lost long time Water based pain is more flexible than oil base


Key term: Downpipe

(stratco n.d) Vapour barrier : material use for damp proofing, plastic or foil sheet that resist diffusion of moisture through wall. Flashing: thin piece of material installed to prevent the passage of water into structure. (Wikipedia n.d ) Gutter: narrow trough or duct which collect and transfer water from roof away from the structure Insulation: to stop thermal transfer from outside to inside or sounds. Parapet: barrier which is an extension of the wall at the edge of roof, terrace, balcony, walkway or other structure (Wikipedia, n.d ) Sealant: material used to sealing

REFERENCE LIST Ching.D.K (2008 ) building construction illustrated (4th edition), John Wiley & Sons. Inc. Stratco, (n.d) downpipe, retrieve from Wikipedia, (n.d) parapet, retrieve from Wikipedia, (n.d) flashing, retrieve from

2014 constructing log book 7