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BLACKHOUSE
AĀ blackhouse isĀ aĀ traditionalĀ typeĀ ofĀ houseĀ whichĀ usedĀ toĀ beĀ commonĀ inĀ theĀ 
HighlandsĀ ofĀ Scotland,Ā TheĀ HebridesĀ andĀ Ireland.
CLIMATE
Ā Ā Ā Ā Ā ScotlandĀ hasĀ aĀ veryĀ changeableĀ climate.Ā OneĀ minuteĀ theĀ sunĀ couldĀ 
beĀ splittingĀ theĀ stones,Ā theĀ nextĀ minuteĀ itĀ couldĀ beĀ lashingĀ rain.Ā 
ThroughoutĀ theĀ day,Ā thereĀ areĀ oftenĀ wideĀ variationsĀ inĀ theĀ climate.Ā 
ThereĀ areĀ alsoĀ wideĀ variationsĀ overĀ smallĀ distances.Ā 
AlthoughĀ ScotlandĀ justĀ touchesĀ onĀ theĀ ArcticĀ Circle,Ā theĀ GulfĀ StreamĀ 
windsĀ manageĀ toĀ keepĀ theĀ temperaturesĀ relativelyĀ mild.Ā 
InĀ theĀ Highlands,Ā theĀ weatherĀ canĀ turnĀ extremeĀ atĀ anyĀ timeĀ -Ā andĀ 
veryĀ quicklyĀ too.Ā 
Scotlandā€™sĀ EastĀ CoastĀ tendsĀ toĀ beĀ coolĀ andĀ dry.Ā InĀ winterĀ theĀ 
temperatureĀ rarelyĀ dropsĀ belowĀ freezing.Ā OnĀ theĀ WestĀ Coast,Ā itĀ isĀ aĀ 
lotĀ milderĀ andĀ wetterĀ withĀ averageĀ highestĀ summerĀ temperaturesĀ ofĀ 
aroundĀ 19Ā°CĀ (66Ā°F),Ā inĀ summer.Ā Scotlandā€™sĀ driestĀ monthsĀ areĀ MayĀ 
andĀ June;Ā theĀ warmestĀ areĀ JulyĀ andĀ August.Ā InĀ northernĀ ScotlandĀ 
theĀ summerĀ sunĀ barelyĀ setsĀ whileĀ duringĀ theĀ winterĀ monthsĀ itĀ hardlyĀ 
risesĀ atĀ all.
THE BLACKHOUSE OF THE HIGHLANDS
ā€¢

The Longhouse
The blackhouses of the Highlands of Scotland were byre
dwellings in the tradition of ā€˜long housesā€™ which have existed
Northern Europe for over a thousand years. Originally
blackhouses had no chimneys or windows and were built with
locally-found materials - stone, turf, thatch of reeds, oats, barley
or marram grass. - usually on the worst arable land.
DESCRIPTION
ā€¢ The buildings were generally built with double
wall dry-stone walls packed with earth and wooden
rafters covered with a thatch of turf with cereal straw
or reed. The floor was generally flagstones or
packed earth and there was a central hearth for the
fire. There was no chimney for the smoke to escape
though. Instead the smoke made its way through the
roof.
ā€¢ The black house was used to accommodate
livestock as well as people. People lived at one end
and the animals lived at the other with a partition
between them.
SETTLEMENT PATTERNS
ā€¢ Before the introduction of crofting at the beginning
of the nineteenth century, the ā€˜farmsā€™ on the
Highland estates were run by tacks men who paid a
rent to the clan chief. On each farm there would be a
small settlement whose inhabitants would pay their
rents to the tacks man. The system of farming used
was known as ā€˜run-rig.ā€™ This was when the fields
were worked communally and in rotation. Because
of this collective method of farming, blackhouses
were clustered together into small ā€˜clachanā€™,
normally close to the freshwater source. Crofting
saw the disappearance of the tacks men and the
division of the ā€˜farmsā€™ into apportionments where
each tenant had their own piece of land. The
blackhouses were rebuilt on each croft - usually on
the worst arable land.
THEĀ NAMEĀ ā€˜BLACKHOUSEā€™
ā€¢ It is tempting to think that the name "Blackhouse"
had something to do with the largely windowless
darkness in which people would have lived, or the
peat smoke.
ā€¢ In fact it stems from the introduction of more
modern housing from the end of the 1800s in
response to legal and other pressures, especially to
separate housing for people from housing for
animals. These new cottages became known as
"white houses", and the more traditional dwellings
they started to replace became know as blackhouses
simply to distinguish the two styles.
ENVIRONMENTAL ARCHITECTURE
SITING
The form and siting of the Blackhouse, low and sunk into the contours of the
land, reduced wind exposure and heat loss.
THE FIRE
In the old Blackhouse the fire was built in the centre of the floor and there was no
chimney. This was extremely energy efficient. The fire was the centre of family life
and was never allowed to go out - it was smoored in the evening.
THE WALLS AND ROOF
The thick stone walls and earthen floor would absorb the heat of
the fire during the night. The earth core of the walls was good
insulation and kept out draughts through the dry stone wall. The
turf and thick thatch, heavy with soot, were also good insulants.
LIVESTOCK
The cow or cattle were often under the same roof as the humans
during the winter. This was for the sake of the animal - it was
essential to the family that the cow was in good health and gave a
good yield of milk. The livestock not only benefited from the
warmth of the fire but also gave out large quantities of heat itself,
from its body and manure.
THE MANURE
The byre was at the lower end of the house so that the urine
would drain into the arable land. The ammonia from the urine
also helped to sterilize the house. Each spring the byre would be
cleaned out of the accumulated manure which would be placed
on the crops as fertilizer. Human waste would also be gathered
for this purpose with the urine being used for treating fabrics
such as tweed.

THE SMOKE
The peat smoke from the open fire would fill the house and act
as a sterilizer - killing bugs and germs. It would escape by
seeping through the thatch, enriching it with soot. The sootsaturated thatch was removed periodically and used as a
fertilizer for the crops.
MATERIALS
Good timber was precious. When moving, or building a new
house, the couples and good roof timbers were often removed
and re-used. This also applied to any windows, and good stones
used as lintels.
RESPONSE TO THE ENVIRONMENT
THE FORM
The form and siting of the blackhouses was influenced by the
fear of storms. The house was low and contour hugging, often
being built into the slope or embankments. The roof was
rounded, leaving no sharp edges for the wind to catch.
THE PLAN
openings were almost universally on the east side of the building,
the south westerly prevailing winds hitting nothing but blank
walls. When people rose in the morning they were met
(occasionally) with the sun in their faces. This was important. The
siting of the blackhouses conformed to the old Gaelic proverb 'An
iar's an ear, an dachaigh as' fhĆ©arr - cĆ¹l ri gaoith,'s aghaidh ri
grƩin.' (East to west, the house that's best - back to the wind and
face to the sun).
MATERIALS
The materials used were those that were available. This depended
on where a person lived, the rules of the estate, and a person's
wealth. As a result, the houses were built of entirely local material.
When people could afford to buy in better materials, however,
they did so.
METHOD OF CONSTRUCTION
ā€¢

ā€¢

A Blackhouse usually comprised a long narrow building, often
with one or more additional buildings laid parallel to it and
sharing a common wall. The walls were made from an inner
and outer layer of unmortared stones, the gap between them
filled with peat and earth. The roof would be based on a
wooden frame, resting on the inner stone walls, giving the very
characteristic wall-ledge. Over the frame would be laid an
overlapping layer of heathery turves, and over this would be
laid a layer of thatch. The thatch would be secured by an old
fishing net or by twine, attached to large rocks whose weight
held everything down. More rocks would be laid around the
bottom of the roof, where it met the inner wall.
The roof traditionally had no chimney, the smoke from the peat
fire in the central hearth simply finding its own way out as it
could. The smoked thatch was considered an excellent
fertilizer and it was normal to strip it off for this purpose and
rethatch the roof each year.
The floor of the living area of the Blackhouse would usually be
flagged. The animals would be at one end of the house, and in the
byre area there would be earth flooring, usually with a drain for
some of the animal waste. Part of the Blackhouse would also be
used as a barn for storage and processing of grain and other
products.
While the underlying design of the blackhouses may seem to have
a direct lineage dating back to Orkney's Skara Brae, 5,000 years
ago, most were not as old as you might think. The Blackhouse
used as the museum was built as recently as 1875. And in 1960
there were still nine blackhouses in use in Arnol: while the group
now restored as the Blackhouse village at Gearrannan, further
along the coast, was only abandoned in 1974.
Completing the complex is an excellent visitor centre in another
nearby converted cottage. This provides background information
and has a very helpful cutaway model of the Blackhouse. The
Blackhouse Museum is open all year round: but is closed on
Sundays.
Reconstruction of the Blackhouse exterior in 3ds Max showing
the thatch roof and twine structure weighted down with stones.
Reconstruction of the Blackhouse exterior in 3ds Max showing the
layer of peat slabs below the thatch, with gaps to allow smoke to
dissipate.
Reconstruction of the Blackhouse exterior in 3ds Max with the
entire peat layer removed, showing the structure of the lower
wooden coursing.
Reconstruction of the Blackhouse exterior in 3ds Max with all
upper layers removed showing only the internal A-frame structure
A cleit with a Blackhouse-style thatched roof, note the curved ends
(Fleming 2005, 93 - Although this is a cleit, the Blackhouse roofs
looked exactly the same.
DEVELOPMENT OF
THE STRUCTURE

The addition of chimneys.
ā€¢ The building housing the museum, No. 42 Arnol, is generally
authentic, though now roofed to a much higher standard,
especially at the byre end, than would have been typical at the
time. It also spares visitors the experience of sharing a roof
with the animals, and some of the 1900s additions like lino
floors and roughly hung wallpaper extending into the roof have
also been removed.
ā€¢

But even if what you see today is a slightly sanitized version of
life in a Blackhouse, the atmosphere is still remarkable:
literally. With a peat fire smoldering away in the central hearth,
you might emerge free of the smell of animals, but you will
certainly emerge wondering how the residents survived the all
pervasive peat smoke
A general view down the Street around
1930, note the blackhouses have had their
roofs replaced.
AN EXAMPLE: THE LEWIS
BLACKHOUSE
ā€¢

ā€¢

Although the Lewis blackhouses have a look of real antiquity,
most of the upstanding ruins were built less than 150 years
ago. Many were still roofed until the 1970s but without the
necessary annual repairs deteriorated rapidly; as people
moved into more modern dwellings with indoor plumbing and
better heating, most have fallen into ruin. However, black
houses are increasingly being restored, especially for use as
holiday accommodation.
The blackhouses on the Isle of Lewis have roofs thatched with
cereal straw over turf and thick, stone-lined walls with an
earthen core. Roof timbers rise from the inner face of the walls
providing a characteristic ledge at the wall head (tobhta). This
gives access to the roof for thatching. Both the animals and
occupants shared the same door, living at different ends of the
same space. Several long ranges, or rooms, were usually built
alongside each other, each one having its own ridgeline giving
them the very distinctive look of the Lewis blackhouse.
ā€¢

The immediate origins of the
blackhouse are unclear as few
pre-eighteenth century
examples have ever been
excavated. One reason for this
is that, unlike their later
counterparts, the early
examples may have been made
of turf and thatch and quickly
returned to the earth once
abandoned. As one of the most
primitive forms of the North
Atlantic longhouse tradition it is
very probable that the roots of
the blackhouse, in which cattle
and humans shared the same
roof, is well over 1000 years old.
The Lewis examples have
clearly been modified to survive
in the tough environment of the
Outer Hebrides. Low rounded
roofs, elaborately roped were
developed to resist the strong
Atlantic winds and thick walls
to provide insulation and to
support the sideways forces of
the short driftwood roof
timbers.
Presented by Khushboo Sood
B.Arch 4th Sem

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Blackhouse - vernacular architecture

  • 2. CLIMATE Ā Ā Ā Ā Ā ScotlandĀ hasĀ aĀ veryĀ changeableĀ climate.Ā OneĀ minuteĀ theĀ sunĀ couldĀ  beĀ splittingĀ theĀ stones,Ā theĀ nextĀ minuteĀ itĀ couldĀ beĀ lashingĀ rain.Ā  ThroughoutĀ theĀ day,Ā thereĀ areĀ oftenĀ wideĀ variationsĀ inĀ theĀ climate.Ā  ThereĀ areĀ alsoĀ wideĀ variationsĀ overĀ smallĀ distances.Ā  AlthoughĀ ScotlandĀ justĀ touchesĀ onĀ theĀ ArcticĀ Circle,Ā theĀ GulfĀ StreamĀ  windsĀ manageĀ toĀ keepĀ theĀ temperaturesĀ relativelyĀ mild.Ā  InĀ theĀ Highlands,Ā theĀ weatherĀ canĀ turnĀ extremeĀ atĀ anyĀ timeĀ -Ā andĀ  veryĀ quicklyĀ too.Ā  Scotlandā€™sĀ EastĀ CoastĀ tendsĀ toĀ beĀ coolĀ andĀ dry.Ā InĀ winterĀ theĀ  temperatureĀ rarelyĀ dropsĀ belowĀ freezing.Ā OnĀ theĀ WestĀ Coast,Ā itĀ isĀ aĀ  lotĀ milderĀ andĀ wetterĀ withĀ averageĀ highestĀ summerĀ temperaturesĀ ofĀ  aroundĀ 19Ā°CĀ (66Ā°F),Ā inĀ summer.Ā Scotlandā€™sĀ driestĀ monthsĀ areĀ MayĀ  andĀ June;Ā theĀ warmestĀ areĀ JulyĀ andĀ August.Ā InĀ northernĀ ScotlandĀ  theĀ summerĀ sunĀ barelyĀ setsĀ whileĀ duringĀ theĀ winterĀ monthsĀ itĀ hardlyĀ  risesĀ atĀ all.
  • 3.
  • 4. THE BLACKHOUSE OF THE HIGHLANDS ā€¢ The Longhouse The blackhouses of the Highlands of Scotland were byre dwellings in the tradition of ā€˜long housesā€™ which have existed Northern Europe for over a thousand years. Originally blackhouses had no chimneys or windows and were built with locally-found materials - stone, turf, thatch of reeds, oats, barley or marram grass. - usually on the worst arable land.
  • 5. DESCRIPTION ā€¢ The buildings were generally built with double wall dry-stone walls packed with earth and wooden rafters covered with a thatch of turf with cereal straw or reed. The floor was generally flagstones or packed earth and there was a central hearth for the fire. There was no chimney for the smoke to escape though. Instead the smoke made its way through the roof. ā€¢ The black house was used to accommodate livestock as well as people. People lived at one end and the animals lived at the other with a partition between them.
  • 6.
  • 7.
  • 8. SETTLEMENT PATTERNS ā€¢ Before the introduction of crofting at the beginning of the nineteenth century, the ā€˜farmsā€™ on the Highland estates were run by tacks men who paid a rent to the clan chief. On each farm there would be a small settlement whose inhabitants would pay their rents to the tacks man. The system of farming used was known as ā€˜run-rig.ā€™ This was when the fields were worked communally and in rotation. Because of this collective method of farming, blackhouses were clustered together into small ā€˜clachanā€™, normally close to the freshwater source. Crofting saw the disappearance of the tacks men and the division of the ā€˜farmsā€™ into apportionments where each tenant had their own piece of land. The blackhouses were rebuilt on each croft - usually on the worst arable land.
  • 9.
  • 10.
  • 11. THEĀ NAMEĀ ā€˜BLACKHOUSEā€™ ā€¢ It is tempting to think that the name "Blackhouse" had something to do with the largely windowless darkness in which people would have lived, or the peat smoke. ā€¢ In fact it stems from the introduction of more modern housing from the end of the 1800s in response to legal and other pressures, especially to separate housing for people from housing for animals. These new cottages became known as "white houses", and the more traditional dwellings they started to replace became know as blackhouses simply to distinguish the two styles.
  • 12.
  • 13. ENVIRONMENTAL ARCHITECTURE SITING The form and siting of the Blackhouse, low and sunk into the contours of the land, reduced wind exposure and heat loss.
  • 14. THE FIRE In the old Blackhouse the fire was built in the centre of the floor and there was no chimney. This was extremely energy efficient. The fire was the centre of family life and was never allowed to go out - it was smoored in the evening.
  • 15. THE WALLS AND ROOF The thick stone walls and earthen floor would absorb the heat of the fire during the night. The earth core of the walls was good insulation and kept out draughts through the dry stone wall. The turf and thick thatch, heavy with soot, were also good insulants.
  • 16. LIVESTOCK The cow or cattle were often under the same roof as the humans during the winter. This was for the sake of the animal - it was essential to the family that the cow was in good health and gave a good yield of milk. The livestock not only benefited from the warmth of the fire but also gave out large quantities of heat itself, from its body and manure.
  • 17. THE MANURE The byre was at the lower end of the house so that the urine would drain into the arable land. The ammonia from the urine also helped to sterilize the house. Each spring the byre would be cleaned out of the accumulated manure which would be placed on the crops as fertilizer. Human waste would also be gathered for this purpose with the urine being used for treating fabrics such as tweed. THE SMOKE The peat smoke from the open fire would fill the house and act as a sterilizer - killing bugs and germs. It would escape by seeping through the thatch, enriching it with soot. The sootsaturated thatch was removed periodically and used as a fertilizer for the crops.
  • 18.
  • 19.
  • 20. MATERIALS Good timber was precious. When moving, or building a new house, the couples and good roof timbers were often removed and re-used. This also applied to any windows, and good stones used as lintels.
  • 21. RESPONSE TO THE ENVIRONMENT THE FORM The form and siting of the blackhouses was influenced by the fear of storms. The house was low and contour hugging, often being built into the slope or embankments. The roof was rounded, leaving no sharp edges for the wind to catch.
  • 22. THE PLAN openings were almost universally on the east side of the building, the south westerly prevailing winds hitting nothing but blank walls. When people rose in the morning they were met (occasionally) with the sun in their faces. This was important. The siting of the blackhouses conformed to the old Gaelic proverb 'An iar's an ear, an dachaigh as' fhĆ©arr - cĆ¹l ri gaoith,'s aghaidh ri grĆ©in.' (East to west, the house that's best - back to the wind and face to the sun).
  • 23.
  • 24. MATERIALS The materials used were those that were available. This depended on where a person lived, the rules of the estate, and a person's wealth. As a result, the houses were built of entirely local material. When people could afford to buy in better materials, however, they did so.
  • 25.
  • 26.
  • 27. METHOD OF CONSTRUCTION ā€¢ ā€¢ A Blackhouse usually comprised a long narrow building, often with one or more additional buildings laid parallel to it and sharing a common wall. The walls were made from an inner and outer layer of unmortared stones, the gap between them filled with peat and earth. The roof would be based on a wooden frame, resting on the inner stone walls, giving the very characteristic wall-ledge. Over the frame would be laid an overlapping layer of heathery turves, and over this would be laid a layer of thatch. The thatch would be secured by an old fishing net or by twine, attached to large rocks whose weight held everything down. More rocks would be laid around the bottom of the roof, where it met the inner wall. The roof traditionally had no chimney, the smoke from the peat fire in the central hearth simply finding its own way out as it could. The smoked thatch was considered an excellent fertilizer and it was normal to strip it off for this purpose and rethatch the roof each year.
  • 28. The floor of the living area of the Blackhouse would usually be flagged. The animals would be at one end of the house, and in the byre area there would be earth flooring, usually with a drain for some of the animal waste. Part of the Blackhouse would also be used as a barn for storage and processing of grain and other products. While the underlying design of the blackhouses may seem to have a direct lineage dating back to Orkney's Skara Brae, 5,000 years ago, most were not as old as you might think. The Blackhouse used as the museum was built as recently as 1875. And in 1960 there were still nine blackhouses in use in Arnol: while the group now restored as the Blackhouse village at Gearrannan, further along the coast, was only abandoned in 1974. Completing the complex is an excellent visitor centre in another nearby converted cottage. This provides background information and has a very helpful cutaway model of the Blackhouse. The Blackhouse Museum is open all year round: but is closed on Sundays.
  • 29. Reconstruction of the Blackhouse exterior in 3ds Max showing the thatch roof and twine structure weighted down with stones.
  • 30. Reconstruction of the Blackhouse exterior in 3ds Max showing the layer of peat slabs below the thatch, with gaps to allow smoke to dissipate.
  • 31. Reconstruction of the Blackhouse exterior in 3ds Max with the entire peat layer removed, showing the structure of the lower wooden coursing.
  • 32. Reconstruction of the Blackhouse exterior in 3ds Max with all upper layers removed showing only the internal A-frame structure
  • 33. A cleit with a Blackhouse-style thatched roof, note the curved ends (Fleming 2005, 93 - Although this is a cleit, the Blackhouse roofs looked exactly the same.
  • 34.
  • 35. DEVELOPMENT OF THE STRUCTURE The addition of chimneys.
  • 36. ā€¢ The building housing the museum, No. 42 Arnol, is generally authentic, though now roofed to a much higher standard, especially at the byre end, than would have been typical at the time. It also spares visitors the experience of sharing a roof with the animals, and some of the 1900s additions like lino floors and roughly hung wallpaper extending into the roof have also been removed. ā€¢ But even if what you see today is a slightly sanitized version of life in a Blackhouse, the atmosphere is still remarkable: literally. With a peat fire smoldering away in the central hearth, you might emerge free of the smell of animals, but you will certainly emerge wondering how the residents survived the all pervasive peat smoke
  • 37. A general view down the Street around 1930, note the blackhouses have had their roofs replaced.
  • 38. AN EXAMPLE: THE LEWIS BLACKHOUSE ā€¢ ā€¢ Although the Lewis blackhouses have a look of real antiquity, most of the upstanding ruins were built less than 150 years ago. Many were still roofed until the 1970s but without the necessary annual repairs deteriorated rapidly; as people moved into more modern dwellings with indoor plumbing and better heating, most have fallen into ruin. However, black houses are increasingly being restored, especially for use as holiday accommodation. The blackhouses on the Isle of Lewis have roofs thatched with cereal straw over turf and thick, stone-lined walls with an earthen core. Roof timbers rise from the inner face of the walls providing a characteristic ledge at the wall head (tobhta). This gives access to the roof for thatching. Both the animals and occupants shared the same door, living at different ends of the same space. Several long ranges, or rooms, were usually built alongside each other, each one having its own ridgeline giving them the very distinctive look of the Lewis blackhouse.
  • 39. ā€¢ The immediate origins of the blackhouse are unclear as few pre-eighteenth century examples have ever been excavated. One reason for this is that, unlike their later counterparts, the early examples may have been made of turf and thatch and quickly returned to the earth once abandoned. As one of the most primitive forms of the North Atlantic longhouse tradition it is very probable that the roots of the blackhouse, in which cattle and humans shared the same roof, is well over 1000 years old. The Lewis examples have clearly been modified to survive in the tough environment of the Outer Hebrides. Low rounded roofs, elaborately roped were developed to resist the strong Atlantic winds and thick walls to provide insulation and to support the sideways forces of the short driftwood roof timbers.
  • 40.
  • 41.
  • 42. Presented by Khushboo Sood B.Arch 4th Sem

Editor's Notes

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