-
EarthBags are
currently R5.80
ex VAT (require
24 per m2
wall area)
-
StopperBags are
currently R2.50
ex VAT (require
6 per m2
wall area)
Fill
material
-
This is
preferably
sourced close to
or on site, from
excavations or
surface
material. Almost any earth
material can be
used, providing
it is not top
soil or other
organic rich
soil.
-
The fill
material may
well not have
any cost if site
sourced.
Bag
filling
-
Bags can easily
be manually
filled, using a
simple wooden
plate (template
for making this
can be supplied)
and 2 cones (can
be supplied).
-
The approximate
filling rate is
300 bags per
team of 2 per
day. This
is 150 bags per
person per day
or under R0.70c
per bag filled
Comparative cost
per m2 of wall
built
A m2 of
wall with all
material and
labour included
and plastered
but not painted
will cost
approximately
|
Earthbag
wall
(may be
substantially
less
dependent on
source and
type of fill
material,
unskilled labour rates and project size)
|
R400 |
|
Concrete
block wall |
R500 |
|
Cavity brick
wall |
R750 |
Costing of a simple structure
The following
estimated
costing is as
applied to a 36
m2 (6m(L) x
6m(W) x 2.7m(H))
structure.
Total wall area
is approximately
65m2
including
openings.
-
excluding
design fees,
planning
approval
-
excluding
plumbing and
electrical
installations
and
connections
-
excluding
site
clearance
- external
walls only,
no internal
partitions
| 'Foundations' |
Materials
incl
sand,
cement,
EarthBags |
R2 800 |
| |
Labour |
R700 |
|
Walls |
Materials
incl
Earthbags,
sand,
mortar
for
lintels,
plaster
materials,
sundries
(rebar
etc) |
R19 000 |
| |
Labour |
R9000 |
|
Floor
and
screed |
Materials
incl.
DPC, EarthBags
and sand |
R2 400 |
| |
Labour |
R1 200 |
|
Roof |
Materials |
R11 000 |
| |
Labour |
R2 400 |
|
Windows
and
Doors |
|
R3 400 |
| |
|
|
|
Total
(for
basic
36m2
structure) |
|
R51 900 |
Notes on
costing
Labour has
been charged at
a rate of R110
per person per
day.
The cost for the
basic built
structure
therefore is
estimated to be
R 1 440 per m2
floor area.
The cost for a complete house with simple plumbing and
electric installations is likely to be closer to a
figure of R2 500 m2.
Costs of materials are constantly increasing. It should
be noted that this is an estimate of costs.
Eternally
Solar can supply EarthBags and advice in EarthBag
building to a project. We are not suppliers of other
building materials and any costs listed above are given
only as an indication of the final likely cost of the
project.
It should be noted that in this project labour costs
total approximately R13 500 @ R110 per person per day
EarthBag costs total approximately R 10 000
Some cost savings may be made if labour rates are
lower.
Some material costs may be reduced depending on how
the structure is completed, such as the roof.
Material costs can also be reduced through the use of
local earth/sand fill material from the site.
In a large
scale
development,
EarthBag costs
may be discounted.