Ecological
Building. Concern
is growing over the environmental impact of many modern products. There is now
an awareness of issues such as tropical deforestation and 'Sick Building Syndrome'.
Concern about indoor pollution and allergies is particularly high. In terms of
energy and toxicity, buildings and construction are amongst the most wasteful
and polluting areas of modern life. This situation can be changed and Natural
Building Products are part of the solution.
Earth
Products. These
are suitable for historic building repairs and for new building applications.
They are extremely low energy materials, from sustainable resources and are entirely
healthy. They are eminently suitable for "breathing" constructions.
Earth products are easy and pleasant to use and are capable of creating a stunning
appearance. They are durable and easily maintained.
Insulation
Products. These
are suitable for all types of buildings, but particularly for breathing constructions
where control of moisture is necessary. For this reason they are indispensable
in the renovation of historic buildings.
Clay
Board
Made of
clay, reed and hessian. It is a practical alternative to plasterboard
or lath and plaster and is compatible with clay or lime plasters. Clay
products help to regulate temperature and moisture and provide acoustic
insulation. Click here for technical sheet.
| QUANTITY |
PRICE |
| BD
20mm x 1500 x 625 | £29.82 |
| BD
25mm x 1500 x 625 | £34.06 |
Claytec
Plasters - General
These are a blend of clay, fine aggregate and plant fibres. They are
supplied as dry powders in bags or as "green" or wet mixes in 1 tonne
or 1.2 tonne bags. They have an indefinite shelf life whilst dry and
are mixed with clean water for use. They harden by drying and, as no
chemical reaction takes place, they remain workable for a lengthy period
and can be reworked by the addition of water. They can be used internally
on masonry, clayboards, lime plasters and plasterboard and offer a practical
alternative to gypsum plasters. The self-coloured plasters provide a
high quality non-dusting surface without the need for further decoration.
Clay
plaster Topcoat
Click
here for Claytec technical sheet.
| QUANTITY |
PRICE |
| Claytec
top coat 30kg | £27.34 |
Claytec
Undercoat
Click
here for technical sheet.
| QUANTITY |
PRICE |
| 30kg |
£19.78 |
| 1200kg
Wet | £344.55 |
Glass
Fibre Mesh
for
reinforcing plasters.
|
QUANTITY
|
PRICE
|
|
50m
x 1m Roll 1490 (4mm x 4mm mesh size)
|
£52.17
|
LECA
Widely used in
horticulture and with cement for flooring, Light Expanded Clay Aggregate is ideal
mixed with NHL for use with limecrete floors as an insulating sub-base beneath
ground floors or as a light weight aggregate in slabs. It consists of lightweight,
porous, ceramic granules formed by expanding special clays at high temperatures.
In bulk, the coated version of LECA is free-draining and has negative capillary
action, good load-bearing properties and good thermal qualities (k = 0.11 w/mk).
Click here for technical sheet.
| | 50
litre bags | Bulk
bags |
| BAG
PRICE | 40
bag Pallet price per bag | WEIGHT
guide only | 1.2m3 | Weight
guide only | 2m3 | Weight
guide only |
| LECA
Mix 20 - 0mm |
£6.00 |
£5.28 |
22
kg |
£74.52
|
570
kg |
£124.20 |
750-950
kg |
| LECA
Mix 20 - 10mm |
£6.00 |
£5.38 |
22
kg |
£78.66
|
500
kg |
£134.55 |
700-900
kg |
| Coated
LECA 20 - 10mm |
£6.21 |
£5.49 |
22
kg |
£78.66
|
500
kg |
£134.55 |
1000 kg |
Bulk discounts are
available for 10 plus bags of 1.2 cu.m or 2 cu.m sizes. Bulk discounts for multiple
pallets of bags are 2-3 pallets = 5%, 4 or more pallets = 10%.
All
prices are plus carriage, although the 50 litre bags are available ex-works. The
weight varies due to the variation in moisture content.
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Terram
Advantage
This vapour permeable, geotextile membrane can be used
for gardening or landscaping purposes. We supply it for use in a build
up for a limecrete floor. It comes in a 4.5m roll so we cut it down
into linear metre lengths as required for ease of carriage.
|
Width
|
PRICE
per linear metre
|
|
4.5m
|
£2.50
|
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Sheepswool
|
THERMAFLEECE
EcoRoll is a wool based insulation that is compress packed and
ideal for quick and easy installation. THERMAFLEECE EcoRoll contains
75% wool blended with 15% recycled polyester and 10% polyester
binder.
THERMAFLEECE
EcoRoll, a compress packed wool insulation that is easy to handle
and quick to install. THERMAFLEECE EcoRoll incorporates a number
of improvements; · 20%.more wool compared to our existing insulation
roll. · 35% less packaging weight per sq.m. · 20% more insulation
per pack meaning 20% less transport impacts to site as well as
20% less packs to handle and store.
|
|
Second
Nature’s Commercial & Technical Director Mark Lynn commented:
“At a time when consumers are expecting greater value, it’s important
we keep innovating to meet this need. With THERMAFLEECE EcoRoll
we have nearly halved the cost of wool insulation compared to
a decade ago when we first launched the brand”. THERMAFLEECE EcoRoll
is available in widths of 370mm & 570mm and thicknesses from 50mm
to 140mm. The insulation is also available in slabs. More
details to follow
|
|
BATT
DIMENSIONS
|
PACK
m²
|
Price
per m2
|
PRICE
per PACK
|
|
75mm
x 370mm x 8.5m
|
9.44
|
£5.22 |
£49.28
|
|
75mm x 570mm x 8.5m
|
9.69
|
£5.22 |
£50.58
|
|
100mm
x 370mm x 6.5m
|
7.22
|
£6.95 |
£50.18
|
|
100mm
x 570mm x 6.5m
|
7.41
|
£6.95 |
£51.50
|
|
140mm
x 370mm x 4.6m
|
5.11
|
£9.73 |
£49.72
|
|
140mm
x 570mm x 4.6m
|
5.24
|
£9.73 |
£50.99
|
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Click to view larger image | 
Click to view larger image | Produced
in the UK, sheepswool batts natural insulation come in a range of sizes. They
are sustainable, safe and have a high insulation valve (k = 0.038 w/mk) and excellent
moisture control without loss of thermal efficiency. They have low embodied energy
and are not toxic or irritating in use. Cost per m2 at 100mm is about £9.50
plus carriage.
Click
here for technical sheet.
If you would like help choosing between
Thermafleece and PB20 please see the following comparison
chart |
| BATT
DIMENSIONS | BATT
m² | BATTS
per PACK | PACK
m² | INDIVIDUAL
£ / BATT | m³
PACK |
|
50 x 400
x 1200 | 0.48 |
42 |
20.16 |
£3.50 |
£100.51
|
| 50
x 600 x 1200 | 0.72 |
28 |
20.16 |
£5.25 |
£100.51
|
| 75
x 400 x 1200 | 0.48 |
27 |
12.96 |
£5.25 |
£96.65
|
| 75
x 600 x 1200 | 0.72 |
18 |
12.96 |
£7.86 |
£96.65
|
| 100
x 400 x 1200 | 0.48 |
21 |
10.08 |
£6.88 |
£100.30
|
| 100
x 600 x 1200 | 0.72 |
14 |
10.08 |
£10.32 |
£100.30
|
Back
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Sheepswool
- PB20
| Thermafleece
PB20 is a wool-based building insulation incorporating a recycled polyester bulking
agent to enable the insulation to be rolled and compressed by up to 60% whilst
retaining many of the functional
and environmental benefits associated with wool fibres. PB20 has a thermal conductivity
of 0.039 W/mK, which is compariable with most equivalent conventional insulation.
Cost per m2 at 100mm is about £7.70 plus carriage.
Click
here for the brochure
|
| BATT
DIMENSIONS | UNITS
per PACK | PACK
m² | PRICE
per m2 | PRICE
per PACK |
|
100 x 370
x 5300 | 3 |
5.88 |
£7.70 |
£45.28 |
| 100
x 570 x 5300 | 2 |
6.04 |
£7.70 |
£46.51 |
| 70
x 570 x 7600 | 2 |
8.66 |
£5.39 |
£46.68 |
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Cellulose
insulation
Excel Warmcell
100 loose-fill cellulose fibre natural insulation is produced from 100% recycled
paper and has a high insulation value (k = 0.040 w/mk). It is non-toxic, non-irritant
and extremely easy to use. Our cellulose insulation has been treated with inorganic
salts to provide pest and fire resistance. It is specifically for use between
joists in lofts and under suspended floors. Cost per m2 at 100mm is about £5.06
plus carriage.
Click
here for Cellulose Fibre technical sheet.
| QUANTITY |
PRICE / BAG |
Cost
per m³ |
| 8kg |
£10.84
|
circa
£49.10 |
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Pavaflex
Flexible wood fibre insulation
A natural, breathable and flexible insulation
made from wood fibres and is treated with inorganic salts to provide fire and
pest resistance. Has a good insulation K value of 0.038 W/mK and a density of
55kg/m3. More carbon is locked up in Pavaflex than is released in production and
is therefore carbon neutral.
Click here for Pavaflex
natural insulation technical sheet
Thickness mm | Width mm | Sheets
per package | Sheets
per pallet | Weight
per pallet | m2
per pallet | m2
per batt | m2
per pack | £/m2 | £/pack |
|
50
mm | 375 |
6
| 120 | 182 | 60.75 | 0.506 |
3.04
|
£6.29
|
£19.14
|
50
mm | 575 |
6
| 80 | 186 | 62.10 | 0.776 |
4.65
|
£6.02
|
£28.01
|
80
mm | 375 |
4
| 75 | 182 | 37.97 | 0.506 |
2.03
|
£9.88
|
£20.00
|
80
mm | 575 |
4
| 50 | 186 | 38.81 | 0.776 |
3.10
|
£9.42
|
£29.36
|
100
mm | 375 |
3
| 30 | 182 | 30.38 | 0.506 |
1.52
|
£12.60
|
£19.14
|
100
mm | 575 |
3
| 40 | 186 | 31.05 | 0.776 |
2.33
|
£12.03
|
£28.01
|
140
mm | 375 |
2
| 36 | 155 | 18.23 | 0.506 |
1.01
|
£17.28
|
£17.50
|
140
mm | 575 |
2
| 24 | 158 | 18.63 | 0.776 |
1.55
|
£16.49
|
£25.60
|
Wood
Fibre Boards - General
Wood fibre boards are rigid building boards made from reprocessed
offcuts.
Pavadentro
Internal wall Board
|
DIMENSIONS
mm
|
PRICE
per board
|
Eq.
price per m2
|
|
40
x 1010 x 590 - 68 boards/pallet
|
£10.69
|
£17.47
|
|
60
x 1010 x 590 - 68 boards/pallet
|
£15.92
|
£26.01
|
|
80
x 1010 x 590 - 48 boards/pallet
|
£21.12
|
£34.50
|
|
100
x 1010 x 590 -40 boards/pallet
|
£25.91
|
£42.33
|
Pavatherm
Thermal Board
Used internally for thermal and acoustic natural insulation on floors walls and
ceilings. Made from wood pulp, no adhesives are used in the manufacturing process.
|
DIMENSIONS
mm
|
PRICE
|
|
20
x 1020 x 600
|
£3.64
|
|
30
x 1020 x 600
|
£5.02
|
|
40
x 1020 x 600
|
£7.27
|
|
60
x 1020 x 600
|
£10.84
|
|
80
x 1020 x 600
|
£14.66
|
|
100
x 1020 x 600
|
£18.14
|
|
80
x 2050 x 800
|
£36.65
|
|
40
x 2050 x 1200
|
£29.18
|
|
60
x 2050 x 1200
|
£43.53
|
Pavatherm
Profile (formally Floor NK)
| DIMENSIONS
mm | PRICE |
| 40
x 1010 x 590 |
£9.77
|
| 60
x 1010 x 590 |
£13.68
|
Isolair
Sarking Board
| DIMENSIONS
mm | PRICE |
| 22
x 2480 x 750 |
£18.86
|
| 35
x 2480 x 750 |
£31.95
|
| 60
x 2480 x 750 |
£55.24
|
External
Insulation Board - Unger diffutherm
These can be used against a solid background or over studs and joists when protected
with a lime or earth plaster.
| DIMENSIONS
mm | PRICE |
| |
£25.46
|
| |
£33.50
|
| |
£41.28
|
Pavatex
Self-Seal Tape
| DIMENSIONS
| PRICE |
| Roll
- 15cm x 15m |
£65.00
|
Reed
Board
Click to view larger image | A
natural product that has many uses. Can be used to create an insulated ceiling
once lime plastered, or can be used to create stud walls or can help insulate
a solid wall internally. This product has a reasonable K value of 0.54 w/mk.
Click
here for technical sheet
| 25 mm |
1000 x 2000 mm | £15.50 |
| 50
mm | 1000
x 2000 mm | £37.90 |
|
Glass
fibre scrim
For reinforcing plasters.
| QUANTITY |
PRICE |
| ROLL
-100m x 8cm |
£17.71
|
Silver
Mica 175
| QUANTITY |
PRICE |
| 25kg |
£262.50 |
Cob
Blocks and Cob Bricks
Click to view larger image |
Click to view larger image |
These are suitable for
the repair and rebuilding of earth buildings. We supply two types
- compressed and extruded. The compressed cob blocks more closely
match the original composition of the sub-soil used for cob buildings,
the extruded cob blocks are slightly smaller and a bit cheaper!
Coverage - a cubic metre of wall rebuild will require 80 cob blocks
18" x 9" x 4"
Bedding mortar - a tonne of 4/1 lime mortar will bed around 160
cob blocks.
|
|
TYPE
|
NOMINAL
SIZE
|
PALLETTED
PRICE
collected from us
|
INDIVIDUAL
PRICE
per block
|
|
Extruded
cob block
|
17.5"
x 8.5" x 4"
|
£1.65
in pallets of 50+
|
£1.70
|
|
Compressed
cob block
|
17.5"
x 9" x 4"
|
£1.80
in pallets of 50
|
£1.90
|
Oak
Lintels
We stock are wide range of seasoned oak lintels that have been
air dried for up to 8 years. Standard sizes are 4" x3", 6" x 4", 8" x 5" and 12"
x 5" in a variety of lengths up to 7ft. We can also supply green oak cut to your
specific requirements.
Formula to calculate volume:- (inches
x inches) x length (feet) / 144 = volume in cu. ft
| QUANTITY |
STANDARD
PRICE |
| per
cubic foot |
£33.00
|
Riven
and Sawn Lath
Click to view larger image |
We stock over 100,000 feet of lath and battens. Riven/hand split lath is cut with
the grain and is less flexible than sawn lath and offers a coarser surface for
lime plasters to adhere to, making it more suitable for ceiling repairs. The key
to the riven surface is then an additional grip to that formed by squeezing the
lime plaster through the gaps between the laths. Riven Chestnut lath is a little
more flexible than riven oak lath and can therefore be used for following contours
or undulations a little better if needed. Sawn
larch lath is a good quality wood that is the most flexible, particularly useful
for longer lengths that need to follow old walls that have 'charactor'.
| | RIVEN
OAK | RIVEN
CHESTNUT | SAWN
OAK | SAWN
LARCH | | price,
per foot | 27p |
27p |
11p
|
8p
|
|
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