By David Thorpe
A retro-fit bargains many advantages: slicing electrical energy and heating accounts, expanding the resale price of houses, slashing carbon emissions and making a more healthy position to reside. This ebook is the consultant to creating it occur. It seems to be at:-draught-proofing, insulation and damp -ventilation, heating and cooling-electrical potency and renewable strength -water use and re-use-materials' lifestyles cycles and incorporating nature-protection from weather switch impacts-modelling strength flows and embodied energy-how we will meet the necessity to reduce carbon emissions from dwellings by means of eighty% by means of 2050.Projects can follow t. learn more... Airtightness: decreasing power call for for heating and cooling -- Insulation fabrics -- Insulation innovations -- Going all of the method : in the direction of passivhaus -- home windows and doorways -- air flow, cooling and heating -- Water administration -- electrical energy potency and provide -- Contextual matters
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Extra info for Sustainable Home Refurbishment: The Earthscan Expert Guide to Retrofitting Homes for Efficiency
Sample text
If I’m wearing a wool jumper on a windy day, the wind will blow right through it. If I put on a wind or rain jacket and zip it up, then the wool insulation can do its job properly. It’s the same with a building. You might have insulation in your house, but you’ll still be cold if the wind is penetrating. The idea is to keep all the warm air inside the building and all the cold air outside, to prevent draughts and high heating bills. Andreas Schmidt, SIGA The aim of airtightness is to ‘build tight, ventilate right’.
How should we choose between them? indd 26 6/7/2010 3:17:46 PM insulation materials 27 Embodied energy The net climatic effect of building insulation is the sum of the greenhouse gas emissions associated with the energy used in manufacturing plus the leakage into the atmosphere during use of any (halocarbon: significant; pentane: less so) expanding agents that have a greenhouse effect, minus the emissions saved due to energy saved as a result of the insulation (which is zero if renewable energy is used for heating/cooling that would not been used elsewhere).
Must be installed in sealed spaces. Reclaimable, safe to install, non-flammable, moisture resistant. Non-renewable, mined. High embodied energy. 063W/mK. Clay-based, otherwise like perlite with many of same properties, advantages and disadvantages. 1W/mK. Small, fired pellets like vermiculite; a structural, lightweight granular aggregate. Many of the same features. 3 Multi-foil insulation (or ‘Radiant barriers’) K-value: disputed. Layers of polyethylene coated foils spaced with wadding and closed cell foams.