Sustainable Materials for Resistant Materials Lesson objective to
Sustainable Materials for Resistant Materials Lesson objective – to understand how to think of materials in terms of sustainability
It will not only be just as effective, more individual and visually interesting, it will also be cheaper! Use jointed timbers, whenever possible - Timber can be joined on its ends by finger-joints and metal nail-plates, or on its width, by glue-laminating. Some Suggestions for a New Approach to Timber Use: Be aware that composite beams are more Think about whether you really need to use often than not stronger than timber new timber ¨ - Would a secondhand material suffice? - They also use less timber in Use the lowest grade and smallest-sized acquiring their strength than clear pieces of timber appropriate for the job ¨ - The common practice of ordering full lengths grade timber beams. and then cutting them up into small pieces makes no environmental sense at all. Buy timber from (smaller) sawmillers who Do not throw out offcuts can demonstrate a commitment to ¨ - Put them aside and use them on the next job. Use standard and utility appearance-grade optimising wood-recovery during milling timber, rather than select-grade - ie, by radial sawing, band-sawing, ¨ - Particularly if the surface is going to be painted or otherwise hidden. laser sawing, portable milling, etc. Timber n n n Do not ask for blemish-free timber (cleargrade) and do not insist on stringent colourmatching specifications ¨ n - This leads to increased wastage and downgrading of timber to lower-value applications. Consider using furniture made from knotty, or 'feature-grade' timber
Ways to Make Your Home or Workplace More Energy-efficient n n n n Construct an entry 'airlock'. Close off the staircase from downstairs rooms to avoid upward heat loss. Create doorways between living/working areas, and sleeping/washing areas, etc - so only the living space is heated. Use a fuel-efficient wood burner (make sure the chimney/flue is sealed off from the room). Place a maximum number of windows on the north side of the building - minimise glassed areas on other sides. Use double glazing, low-E glass, or drapes - with pelmet designed to prevent convection movement adjacent to windows. Create passive heat storage - place thermal mass elements in sunny spaces (eg, masonry or water). Use roof/wall/floor insulation.
www. designtechnology. info/resistantmaterials/ This site has many helpful data sheets to help you draw up your coursework Flow diagram help notes Power. Point n
Planning sheet Task Materials Job to be completed H&S QC and QA Feedback and modification suggestions
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