A guide to recycling housing waste
Construction is facing enormous pressure to find ways
to conserve and make best use of our increasingly scarce
natural materials. One way to
do this is to reuse, reclaim or recycle materials, the
major source of which is from demolitions.
In the past, building regulations were
confusing. But providing the materials are suitable
for their intended purpose, there is no reason why you
can't reclaim or recycle them in line with building
regulations.
RICS is leading the way with supporting
sustainable construction by giving guidance to promote
the policy of reuse, reclamation and recycling of waste
materials.
Did you know?
By reducing, reusing, recycling, and reclaiming
at least 5% of building waste you can save £1
000-£12 000.
Build a better quality of life...
Sustainable building is not a new idea. A demolition
contractor carefully demolished house that originally
stood in Bradford, in 1919 and transported it by rail
to Ruskington near Sleaford in Lincolnshire and rebuilt
it. Reused materials included the stone walls, roof,
floors, staircase, lintels, doors and fireplaces.
New Houses
Before starting work you need to:
Environment
Use good standards of thermal insulation
Use solar heating
Use local materials
Keep the plan shape as regular as possible
Use the right products - not purpose made.
Waste
Deliver materials at the last minute -
less damage caused by storage and less double handling
Store topsoil and subsoil for reuse - don't pay to take
away and import new
Consult early with a building control surveyor, which
may mean less excavation and concrete in foundations
and floors
Design with dimensional co-ordination in mind
Shred plasterboard off-cuts and mix with soil
Shred timber waste for mulching around trees and bushes
Sort waste and off-cuts for reuse and recycling
Order materials carefully to reduce excess.
Water
Store roof water
Recycle grey water.
Conversions and Renovations
Before starting work you need to:
Use reclaimed timber beams and joists
Use lime mortar 1.1.9-1.1.12 where possible especially
for stonework
Clean bricks for reuse where possible
Do not excavate existing solid floors and replace with
hardcore unless there is contamination or defective
construction
Reuse existing slates and tiles
Use reclaimed contemporary sanitary fittings and wash
basins where possible. These are very fashionable. Consider
using dual flush appliances
Use reclaimed architectural ironmongery
Use contemporary doors - panelled etc including door
furniture.
Existing Properties
Before starting work you need to:
Use low emissive glazing in windows
Increase thermal insulation where possible
Provide ventilation to roof space
Show/specify reclaimed materials
Use materials from reclaimed/recycled suppliers
Use products with a recycled content
Prepare a method statement of alterations to show which
materials can be reused
Protect existing building to prevent damage
Use crushed concrete as hardcore
Provide adequate DPCs.
...and save money
Generally speaking, sustainability is
a worthwhile aim, and in house building, good economic
sense. For example, a skip full of waste is a skip full
of money. To add insult to injury, you will have to
pay to remove it from site and pay landfill tax.
But you must take care with your choice
of materials, which can be seen as merely second hand.
Using local materials will reduce transport
costs and be more in keeping with the existing building.
It is also good practice in conservation areas and you
are more likely to get planning permission.
Using reclaimed materials from local sources
will make sure new work matches existing as far as possible,
particularly roof and external walls.
Further Information
For more on reducing, reusing, reclaiming
and recycling read:
BRE Digest 446
Assessing environmental impacts of construction
BRE Digest 447
Waste minimisation on construction sites
BRE 1P7/00
Reclamation and recycling of building materials
DTLR/CIRIA
The reclaimed and recycled materials handbook
These titles are available from RICS Books
or RICS members can borrow them from the library.
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