The Handbook of Sustainable Refurbishment: Non-Domestic by Baker Nick
By Baker Nick
The refurbishment of latest constructions is a ignored topic inside of sustainable structure; consciousness is mostly all in favour of new structures. outdated constructions can use quite a lot of strength and supply negative inner stipulations for occupants. they could have excessive heating call for, negative lighting fixtures, bad air flow, sunlight penetration and glare, and bad keep an eye on of heating and cooling. Demolition is an alternative however the replacement of refurbishment is becoming visible as extra sustainable by way of architectural price, fabrics use, local disruption and waste disposal. construction new is extra carbon extensive and consists of many wider environmental affects. furthermore, the capability effect of low strength refurbishment is way more than that for brand new construct in view that there are various extra latest constructions than can be inbuilt the subsequent 10 - two decades, the interval over which many CO2 emission objectives follow. The guide of Sustainable Refurbishment: quantity 1: Non-Domestic structures deals architects, engineers and quite a lot of construction pros useful recommendation, illustrated by way of genuine examples. It strikes from ideas of sustainable refurbishment to express layout and engineering suggestions. It emphasizes the necessity for an built-in strategy by way of displaying how refurbishment measures have interaction with one and different, and with the occupants, and the way functionality is eventually encouraged by means of this interplay.
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Original floor: Solid ground slab with screeded finish. There is some uncertainty about the actual insulation value of non-insulated ground floors. It is very dependent upon the properties of the subsoil. 0 for small shallow-plan buildings. The dependence on size is due to the three-dimensional nature of the heat flow. The outcome is that large buildings may have relatively low floor U-values already, and the cost benefit of floor insulation may be poorer than for other parts of the envelope. Insulation options Option 1: Load-bearing insulation above slab with reinforced screed above.
The only exception to this might be where on a historic building part of a flat or low-pitched roof is covered with lead or copper, and a change of appearance is unacceptable. e. The main concern is the avoidance of interstitial condensation by preventing moist air from the interior getting to the cold underside of the structural deck. 2. Surface reflectance In warm climates where solar gains through the opaque fabric of the roof are a problem, the thermal performance of a roof can be greatly influenced by increasing the reflectance of the roof surface.
It will also apply to pitched roof attics that are to be occupied, where the insulation must be in the plane of the outer roof element. 1, p34. g. mineral fibre, polystyrene beads) by injection through small openings, since it would be impossible to insert an internal vapour check between the ceil- 3456 EARTHSCAN Hndbk Sust Refurb:Layout 1 22/7/09 09:51 Page 41 Roofs ing and insulation. Furthermore, unless the void is unusually large and only partially filled, sufficient ventilation will be very difficult to provide passively.