NORDICA 125 SUPERPASSIVE IN MOYCULLEN, GALWAY

This is Scandinavian Homes house #286 since start in 1991. It’s one of the most popular family houses of the type Nordica 125. The house is located in Moycullen near Galway.

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07.00 a.m. when we arrived to the work it looked like this.

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In anticipation for the first truck to arrive we prepared everything and drilled the fixing stays that will help keep the walls in place during the assembly.


 

 

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After a while the first truck arrived with the main walls. The chauffeur had a hard time to find the right way and the boreen to the was very narrow. But nothing is impossible for Scandinavian Homes.


 IMG_0373BWall no.1 in the air

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The truck needed some help by the crane to turn around.

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Wall no. 2 on it’s route.

 

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The founder (Lars Pettersson) came down to have a look and found a four-footed friend.


 

 

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Adrian putting up the first roof truss.


 

 

 

 

 

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From inside.

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You need to have good balance to build houses.

 

 

 

 

 

 

IMG_0434B18.00 p.m. at the end of the first day it looked like this.

On Friday, after only four days of construction the erection phase is over and the house looks fairly finished.

Passive house after four days of construction

Passive house after four days of construction

INTERNATIONAL PASSIVE HOUSE CONFERENCE 2015 IN LEIPZIG

International passive house conference Leipzig germany 2015Report by Lars Pettersson of Scandinavian Homes after attending the 19th International Passive House Conference in Leipzig, Germany, 17-19th April 2015.

Dr. Shane Clclough chairman of Passive Hoiuse association of Ireland presented 5 years result of monitoring of Scandinavian homes Passive house in Galway

Dr. Shane Colclough, chairman of Passive House Association of Ireland presented 5 years result of monitoring of Scandinavian Homes Passive house in Galway

The International Passive House Conference is a truly international happening with participants from all over the world. The Irish were present with some excellent presentations.

Passive House association of Ireland PHAi

Passive House association of Ireland PHAi

Tomas-OLeary-of-MosArt-and-Shane-Colclough-discussing-the Passive house conference

Tomas-OLeary-of-MosArt-and-Shane-Colclough-discussing-the Passive house conference

Tomas O’Leary of Mos-Art talked about the EnerPHit methodology for passive house refurbishments with practical advice. He emphasised the need for understanding of the process by all participants before the actual work commences.

Coillte Panel Products with their Air Tight OSB (Smart-Ply) from Waterford participated with a stand and made a presentation on the Smart-Ply OSB board as an air tight product in passive houses. David McHugh of Pro-Air of Tuam was spreading words of wisdom about ventilation.

New classification of Passive houses by PHI

New classification of Passive houses by PHI

Environmental impact. New from the PHI this year is that they finally seem to be a little interested in the environmental impact and energy lifecycle of the input materials used in construction of passive houses. This is great, objections to the massive usage of environmentally dubious materials in some passive houses, particularly in Germany has been raised in the past. We can only hope that they will but some focus on the complexity of heating, ventilation and other systems of some passive houses in the future. But unfortunately, Dr. Feist et all seems to be moving towards even more complexity, see next item.

New categories. Beside the established Passive House Classic, there will be the Passive House Plus and Passive House Premium classes as well. A new evaluation procedure which also considers energy generation by the building itself will serve as a basis for this. This makes the idea of a Passive house even more difficult to understand. Let us hope that this new complexity does not disencourage ordinary people from the passive house concept.IPHC Leipig 2015 Jürgen Schnieders discussing solar in passive houses with Dr Shane Colclough

Hans Eek of Passivhuscentrum Alingsås, Sweden sharing experiences with Lars Pettersson of Scandinavian Homes at the Intrnational Passive House Conference Leipzig 2015

Hans Eek of Passivhuscentrum Alingsås, Sweden sharing experiences with Lars Pettersson of Scandinavian Homes at the Intrnational Passive House Conference Leipzig 2015

The International Passive House Conference offer a selection of bus-tours to visit various passive building projects in the region. One of the tours demonstrated two passive single family houses and two schools

It is amazing how nice the planning authorities and the local councils arrange for the individual build of privates homes here (keep in mind that this is in former DDR). The houses are built with relatively high density but with individual design and friendly sweeping streets. It feels natural and very family-friendly, human.

Attractive new residential area outside of Halle, Germany

Attractive new residential area outside of Halle, Germany

It is hard not to make the comparison with the British and Irish authoritarian forced uniformity with straight lines, grey concrete and generally very poor usage of the land. What is wrong in Ireland and UK? Are the planners evil or do they just lack taste, compassion and competence? Or is it some deeper cultural quirk that makes this difference?IPHC Leipzig tour 3 to Halle with demonstration of two new single family passive houses

All in all an interesting experience and a great place to learn of the latest in the technological development within the passive house world, and best of all; an opportunity to meet other passive house enthusiasts.

All the best, Passive greetings, Lars Pettersson, Scandinavian Homes, Galway

Report from 19th Passive house conference Leipzig 2015b

TRADITIONAL & HIGH PERFORMANCE

Modern and traditional Irish houses with good long term performance have been built by Scandinavian Homes for many years. This traditional shape is favoured by planning offices all over the west of Ireland. Our solution with barges and maintenance-free STO silicate render works very well.

Nordica 94 in Irish traditional version with barges. Scandinavian Homes standard detail 7.9m wide house. High-performance passive spec, coastal location near Spiddal.

Nordica 94 in Irish traditional version with barges. Scandinavian Homes standard detail.  26 feet wide (7.9m)  High-performance passive spec, coastal location near Spiddal.

 

Traditional barges wide bodied spacious Hibernia passive spec built in Connemara

Traditional barges. Wide bodied spacious Hibernia 126 that is 36 feet wide (11 m) The width gives very high price and energy performance. 3 bedrooms and passive specification, built in Connemara

At design-stage we have to be careful with the window-sizes to avoid overheating when there is no protective overhang of the roof. And the windows must be maintained a little more frequently as they are more exposed to the sun.

Slates, black concrete tiles or modern performance coated sheet metal can be used. Alu-zinc rain-gutters look very well. Windows can be brown stain, white paint or any color in powder-coated aluminium for total maintenance freedom.

House no 285 was built in April 2015. Baltica type that is 7.9m wide. Built in an angle with a large double garage under.  Passive performance. Will have the gables stone-clad as an old  store building. The longsides  will be plastered  with white coloured through silicate render.

House no 285 was built in April 2015. Baltica type that is 7.9m wide. Built in an angle with a large double garage under. Passive performance. Will have the gables stone-clad as an old store building. The longsides will be plastered with white coloured through silicate render.

Traditional Irish cottage Connemara. Classic measurement 6.1m wide. New-built by Scandinavian Homes of Galway. Standard barge detail and mainenance free STO silicate render.

Traditional Irish cottage Connemara. Our classic Atlantica model is  20 feet wide (6.1m). New-built by Scandinavian Homes of Galway in 2005. This Atlantica 61 has attic conversion under 45 degree roof. Standard barge detail and maintenance free STO silicate render.

Seasonal Thermal Energy Storage and the Passivhaus – lessons from 5 years of monitoring

Our own Dr Colclough will be a speaker at the next internationalPH conference in Leipzig, Germany

Our own Dr Colclough will be a speaker at the 2015 International PH conference in Leipzig, Germany

Scandinavian Homes passive house in Galway with its solar installation will be presented at the International Passive House Conference in Leipzig 2015.

The conference will constitute a forum for the exchange of information regarding global trends in the field of energy efficient building. A wide range of subjects will be covered at the conference to be held on 17 – 18 April in Leipzig: besides the latest research trends, regional and community schemes, cost-effective solutions for residential and non-residential buildings as well as examples of retrofits and of the Passive House Standard implemented in regions with hot climates will be presented.          Congress-Center Leipzig, 17-18 April, 2015

Leipzig

Interntional Passive House Conference 2015 in Leipzig

 

 

 

Theme 6:   1000 ways to heat a Passive House / Dr Shane Colclough

This paper describes the measured performance of a groundbreaking domestic solar heating system with a Seasonal Thermal Energy Store (STES) which is used to meet the DHW and space heating requirements for a house constructed to the Passivhaus standard. Conclusions are drawn about the extent to which solar energy can assist in achieving NZEB in a Passivhaus in Temperate Maritime Climates, and the key lessons from 5 years of monitoring are reviewed.

DruckPassivhaus coupled with a solar installation of 10.6 m² solar array and associated 300 lit domestic hot water tank, 23m3 aqueous subterranean Seasonal Thermal Energy Store (STES) and HRV system was monitored over a five year period from June 2009 to date. Data was collected at 10 minute intervals, with more than 10,000 data points per day used to analyse system performance

High performance passive house with seasonal store of solar heat.

Hibernia 164 passive house built in 2005 with the solar collectors on roof, the seasonal store tank (STES) is underground to the left.

Contents; Key performance data is presented for the installation including

  • Heating demand versus PHPP predictions,
  • Solar fractions achieved,
  • STES tank temperature profile and development of subterranean “buffer zone”,
  • Insulation performance compared with predicted performance, and
  • Evolution of STES tank loss coefficient.

Conclusions The results of 5 years performance monitoring highlight the key factors required for performance optimisation of such systems. The recorded performance demonstrates the viability of solar thermal installations in helping achieve NZEB when used in combination with a low energy dwelling constructed to the passivhaus standard in a Temperate Maritime Climate  – Dr. Shane Colclough, Dr David Redpath, Dr Philip Griffiths, University of Ulster, Newtownabbey, Northern Ireland, BT37 0QB.

PHI Professor Wolfgang Feist

The very first timberframe passive house in Ireland is soon celebrating its 10 year. Thousands of interested people from all over the world has visited Scandinavian Homes super passive house during the years. Dr Colclough and University of Ulsters research on large solar-system connected to a seasonal store in a passive house has been recognized globally and the findings has been presented at many international conferences.

The house in Galway is still open for interested public, check out www.scanhome.ie for dates.

International Passive House Conference where 5 years of reseatch on Scanhome's solar passive house is presented.

International Passive House Conference Center Leipzig where 5 years of research on solar passive house is presented.

Read more about the 2015 passive house conference in Leipzig here:  www.passivehouseconference.org

 

FRESH AIR-SUPPLY TO STOVE & KITCHEN FAN HEAT-RECOVERY & SIZING OF SOLAR SYSTEM QUESTIONS

Jim, who recently hosted International Passive House Days / Near Zero Energy Buildings – open days in his home, came up with a few pertinent questions. I am sure he is not the only one having thoughts about these issues…. Jim wrote:

Lars, We had a successful weekend for the passive house open days. Over 20 people came to visit. A couple of questions came up that I could do with an answer to:

—Jim: Why would you install a stove that draws air in from the room rather than a sealed unit with a balanced flue to the outside?

Passive two-storey house participating in International passive house open days and Near Zero Energy Buildings open days 2014

Passive two-storey house participating in International passive house open days and Near Zero Energy Buildings open days 2014

—Lars: I see no reason for separate air-supply if that is what you mean. It draws in cold air to the house with constant heat-losses as a consequence. It is difficult and time consuming (costly) to install a cold air supply. And hard to get to fit right onto the stove. The only time needed is at start up of fire when the draft is weak before the heat builds up in the flue/chimney. Our Swedish HRV-units have a function called “fire” that reduces the extract air for a few minutes to let the drag in the chimney build up when the fire is being lit. I have however no personal experience of this trick, for me it has always worked well without that. Another simple solution is to open a window a little for a minute or two while the stove is lightened.

—Jim: Why not install an extractor fan that recycles the air back into the room ?
—Lars: No, this is a very bad idea with all the grease and dirt coming from a kitchen extraction fan. The closest thing is our small HRV unit by Luftmiljö AB. This is only for smaller houses and apartments where the HRV unit is installed above the cooker in the kitchen and is integrated with the cooker-hood. There are still two outlets so that the dirty air is never mixed with the recovery-process.

—Jim: What is the issue having a smaller water tank so that the solar panels heat all the water up more of the time?
—Lars: Yes, a very good idea, a tall narrow 200 liter tank will heat up much faster and stratifies well so that higher temperatures are achieved at the top. The drawback is that the capacity is so small that the system would frequently overheat, boil and go into stagnation. You could only have < 1.8m2 collector area for a 200 liter tank to avoid boiling. I actually have this in our Swedish (now holiday home) house, with 1,8m2 vacuum-tubes, it never boils and gives all the hot water we need in the summer. But with such a small collector we get practically nothing in the late autumn, winter and early spring. To have a small tank and more collectors, you need to have a second larger tank as well, that can act as a buffer-tank.blue sky white sun

Our current thinking after using small systems with 1.8m2 collectors up to large systems with up to 50m2 collector area connected to large seasonal store tanks:

a) Use 200 liter tank as tank 1 in utility room.
b) Use a larger tank as tank 2. This can be between 400 lit and 2000 lit. Should be well insulated and located in a dry insulated utility, basement or nearby garage.
This works as weekly storage/buffer/overheat protection. Dimension the collectors so that boiling and stagnation cannot happen.
c) Overheating and stagnation ages the components including the fluid and shorten the lifespan of the installation.
d) In Ireland we notice that 5.4m2 vacuum-tube collectors is the maximum collector (aperture) area to be used with a 400 liter single tank. In other words, we recommend a minimum of 74 liter tank volume /m2 aperture area to avoid stagnation.

Once a day in winter is all it takes to heat a passive house. With a stove you gain independence.

Once a day in winter is all it takes to heat a passive house. With a stove you gain independence.

—Jim: Everyone was generally impressed with the house and we hope they took the basic principles on board. We had a range of people from a couple living locally who were just curious to couples looking to build, those underway a bricklayer looking to expand his knowledge and an architect.

Hope it went well for you too

Regards, Jim

—Lars, It was good in Galway too, we had more than 30 visitors on the Saturday. Thanks you for your comments, we all need to share some of our experiences of modern passive construction. Thanks again, Lars

VELUX ROOF WINDOWS IMPROVED GLAZING ALTERNATIVES

We like to share the figures we received from Velux about their high performance glazing for triple glazed roof-windows. They call it glazing variant 62 and 66:

Checking thermal performance of Velux triple glazed roof window in super-passive house in Galway

Checking thermal performance of Velux triple glazed roof window in super-passive house in Galway

Specification for 62 Variant triple glazed, enhanced noise reduction window: (from inside to out):  U-value = 0.81 W/m2° 4.38mm laminated with sound insulation foil, 18mm argon gas cavity, 3mm float with low emissivity (soft) coating, 42mm air gap 8mm toughened outer pane with anti-dew coating

Specification for 66 Variant  triple glazed window: (from inside out)  U-value = 1.0 W/m2°  6.8mm laminated inner pane with sound

Sica Super-maestic is used to further improve the seal around roof windows in Scandinavian Homes passive houses.

Sica Super-maestic is used to further improve the seal around roof windows in Scandinavian Homes passive houses.

reduction foil and low emissivity coating, 12mm argon gas cavity, 3mm Heat strengthened middle pane with low emissivity coating, 12 argon gas gap, 4mm toughened outer pane with easy-clean and anti-dew coating

From Velux company in Ireland: Sent: 05 November 2014 17:45

INTERNATIONAL PASSIVE HOUSE OPEN DAYS & NZEB OPEN DAY

Take the opportunity to visit a passive house this weekend. Private people all over the world open their homes to show passive houses.  In Ireland we participate with our super-passive house in Galway.

Flyer 2014-10-31 PH in CelbridgeYou can find out where other houses are open and book a time here: Near Zero Energy Buildings open days (NZEB) website:  http://nzeb-opendoors.ie/

More info on Passive house association of Ireland here: http://www.phai.ie/

With us in Galway you do not need appointment this day, just show up between 11.. and 18.00 on Saturday November 8th.

Welcome!

 

 

 

MAINTAIN YOUR HOUSE LIKE A VIKING

Maintain your house and windows while the weather is dry!

We have Jupex 45 & raw linseed-oil & pigment-paste & Jupex 45 & wooden tar in stock again. Order now, we ship with Fastway for 15€.

Raw linseedoil, Jupex 45, wooden tar, Jupex varnish and pigment for low energy houses and passive houses

Raw linseedoil, Jupex 45, wooden tar, Jupex varnish and pigment.

-External wood: Pressure-wash, let it dry completely, apply one of the oils with brown pigment to saturation-point. Advice: Mix in some wooden tar in the oil to make it smell like a real Viking longboat, this prevents black spots too. Not to be confused with tar from stone-coal, the wooden tar is light and runny, it is made from sap-rich pine.

Scraping 9 year old window on passive house

Scraping 9 year old window on passive house

External door stain Jupex oil and varnish 9 years old at Scandinavian Homes showhouse.

External door stain Jupex oil and varnish 9 years old at Scandinavian Homes showhouse.

-Windows: Sand with 220 sandpaper, apply pigmented oil to
saturation + apply pigmented Jupex varnish. It is the exposure to sun that cause the aging of paint and varnish on the south side.

-External doors: Sand it even with 220 paper. Apply oil to saturation point, this means perhaps 5 times, add pigment to oil so it becomes almost like a paint, apply thin and wipe off until surface is perfect smooth and all small cracks are filled (No slobbering with too think layers!!)
If you try to keep it varnished, simply replace the paint (pigmented oil) with clear Jupex varnish. (should be lightly pigmented with the brown pigment)

Countertop with Jupex 45 protective penetrating oil

Countertop with Jupex 45 protective penetrating oil

-Kitchen counter-top maintenance, beech or oak: Scrape it, sand it with 220 paper, oil with Jupex 45 to saturation-point. (This is the best treatment we have ever heard of, way better than other methods!)

Interesting projects: Skagerack 188 with adjoining garage built near Stockholm Sweden

House no 283, a standard Skagerack 188 with adjoining garage built near Stockholm, Sweden to passive standards. This house resembles American New-England style. The layout plans can be found in the “Huskatalog” on our Swedish website:  www.scanhome.se

Scandinavian Homes Flaherty and Goaley team

Scandinavian Homes Flaherty and Goaley team

Regelbunden stÑdning av byggplatsen

The house is built in a very attractive setting in undulating nature and surrounded by other private houses of individual design. Relatively high density saves space, but a luxurious feel still surrounds the development. Nowadays this is a normal pattern of build in Sweden. A pity that the Irish and UK planning offices are so hung up on uniformity with identical drab looking houses in concrete, grey and black with poisonous PVC and lead on the roof…

Skagerack 188 Sylta passivhus wide

The insulation 335mm in walls, 700m  in attic.

Skagerack 188 passivhus Upplands VÑsby

Interesting projects: Fully passive energy specification. A traditional large house built in keeping with an established neighbourhood in Galway

House No 284, is a modified Skagerack 265 in semi-traditional style. Fully passive energy specification. A traditional large house built in keeping with an established neighbourhood in Galway. Maintenance free wooden windows with aluminum external cover.

Passive and traditional home in Salthill Galway

Passive and traditional home in Salthill Galway

Large two-storey extension towards the garden featuring master bedrooms and large family room. External walls completely maintenance free in grey coloured silicate-render. Traditional looking large house with grey-rendered exterior. External architraves and heavy window-sill will be white to create a contrast.

Excotic Galway location

Excotic Galway location

First trailer arrives with passive kit-house

First trailer arrives with passive kit-house

Entrance door from inside of house.

Entrance door from inside of house.

Large open plan living and dining area with large windows towards the west. Two storey Skagerack passive house built in Salthill, Galway.

Large open plan living and dining area with large windows towards the west. Two storey Skagerack passive house built in Salthill, Galway.

Breakfast area in cosy alcove in kitchen

Breakfast area in cosy alcove in kitchen

Pictures show lots of building material is initially crane-lifted in to save manual handling later on. This slows down the procedure, but it saves time and effort later on.IMG_1443_2000x1500Scandinavian Homes special double wall is entirely cold bridge-free with 335mm of Rock-wool insulation. 700mm of blown-in cellulose fiber insulation in the flat attic and insulated concrete foundation gives extraordinary performance.

IMG_1457_2000x1500This house was erected in June 2014 and completely finished and the owners moved in less than 6 months later. All works well as expected of a passive house. The ventilation system was fine-tuned by Scandinavian Homes with our special air-flow metering equipment after the customers had moved in.   IMG_1459_2000x1500IMG_1466_2000x1500