Green Architecture and The Passivhaus Standard

In 1991 the first ever dwelling to meet the passivhaus standard was constructed. With energy consumption remaining at less than 10kWh per square metre over a year, energy saving is somewhere in the region of 90% when compared to traditionally built homes. It is no wonder that interest in applying the passivhaus standard is increasing.

The standard was first developed by Prof Bo Adamson and Prof Wolfgang Feist due to the problems of increasing demand for fossil fuels and global warming. A solution was needed for these issues and so the passivhaus standard was born.

The simplicity of the standard is its strength; build a house that has excellent thermal properties, is completely airtight and then ventilate the house mechanically. That is more or less it. Adding further energy efficient systems such as solar panels are entirely optional. Adding rainwater harvesting and greywater recycling to further enhance the green aspects of the build will help to make it more environmentally friendly.

Using this standard, an energy efficient building can be built anywhere…including Antarctica! To gain the thermal properties required by the standard, triple glazing, super insulation and a ground heat exchanger are all important.

Regular testing and user feedback indicates that the interior of a passivhaus does not fall below 16 degrees Celsius even during the coldest winter months and despite a mechanical ventilation system the indoor air quality remained good.

This standard is not only suitable for residential homes but can be used for any building, industrial or commercial, to reduce fuel bills. In the face of climate change this is a massive step in the right direction and there are now examples of passivhaus buildings in every European country as well as the USA, Canada, China, Japan and Australia.

Passivhaus is a global solution to a global issue and is going to become ever more popular. Whilst it is relatively easy to adopt the standard for a new build it is difficult to refurbish a building to the standard without undertaking major works.
However, even when a building is refurbished using “passivhaus-suitable components” but does not meet the necessary criteria to receive certification, the building will still benefit greatly from the use of the energy efficient materials.

It is worth noting that although a passivhaus retrofit may need planning permission, the local planning department should look favourably on the project and your architect will be able to advise you on this.

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The Role Of The Engineer In A Self Build Project

Following our recent blog post Top Six Points To Consider Before Beginning Your Self Build Home, we were contacted on Linkedin by David Narro, Structural Engineer to suggest that perhaps we could have expanded our discussion some more on the role of the engineer during the self build project. 

Every year block architects undertake in excess of a dozen self builds for our clients all of which involve the requirements of an engineer to deliver a successful project. The extent of the role of the engineer in a self build project really depends on the engineering complexity of the design and site constraints however on a 'typical' self build there is a few issues that the engineer must advise on.

1. The Desk Top Study
At the start of each project, subject to location, then it is often worthwhile getting a desk top study done by an engineer. This traditionally would include the obtaining of historical site date from e.g. local library and would allow the engineer to form a considered opinion about the potential ground conditions i.e. whether or not the site has mining problems, potential for foundation of former structures to be unearthed, gas or contamination issues. This study including obtaining the services records for the site and surrounding area would allow the engineer to advise the architect on any potential issues related to getting out of the ground.

See additional information - Planning Information

2. The Trial Pits
Following the desk top study the engineer would then inspect trial pits on site. A trial pit is a single or multipe pits or holes dug within the location of the foundations. The engineer typically likes to be present on site as these are being excavated. This will allow the engineer to inspect soil and ground make up with a view to establishing how deep the foundations must be taken to allow for a suitable ground bearing pressure. In an ideal world we want to be down about 600mm to cast a traditional concrete strip foundation.

3. The Design & Specification of Engineering Issues
Prior to lodging the building warrant the engineer would be required to assess the architect's drawings and then advise on the structural matters. This could be anything from specifying foundation depths, lintels, steel beams and columns, advising on roof designs regarding wind and snow loadings. It's quite often the case that the engineer's drawings and specifications seem minimal relative to the quantity of information prepared by the Architect but don't underestimate the amount of calculations done behind the scenes all to prove the structural stability of the structure particularly where SER Certification is required.

4. The SER Certificate
This is a bit of a beaurocratic requirement through the building control process and many engineer's that we consult with have mixed views on this however in essence it's a certificate by which the engineer can certify that he has had his designs and calculations checked by virtue of his registration in the SER system. Alternatively building control would need to issue the engineer's design calculations and specifications to a tender process to be checked by a third party engineer appointed by the Council. Don't understimate the length of time this can add to the building control process. It's definitely a better route to get your engineer to produce the SER Certificate for your prior to or during the building warrant process.

See additinal Information - Building Control

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Porcelanosa Visit - March 2011

I am writing this blog following a fatastic site visit to The Group Headquarters of Porcelanosa in Spain. Courtesy of the Scottish sales team, I was part of a group of 16 professionals and designers who left Glasgow Airport on Wednesday to see the fantastic production facility.

We spent two fantastic days on the Thursday and Friday touring the production factories and showrooms for Porcelanosa tiles, flooring, bathrooms and kitchens. It was a long journey with lots of interesting products to see all of which would be a welcome introduction to any and every house hold. Now many people out there would claim that Porcelanosa is expensive being mid to top range however, we were educated that Porcelanosa is now being specified in Housing Association projects in Glasgow so it of course is proving to be cost effective.

I've posted a few images showing the quality of the range of products that Porcelanosa have to offer. It's definitely worth a look in their new showroom at Braehead, Glasgow.

Finally, thanks Porcelanosa Glasgow for the invitation.

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Top Six Points To Consider Before Beginning Your Self Build Home

Throughout history human kind has created shelters and although technique, materials and construction methods are different, the basic instinct to build a home is still strong. Many people aspire to design their own home and whether you are looking at self build homes in Glasgow or self build homes in Edinburgh there are a few basics you need to get right in order for the project to run smoothly.


1. Engage An Architect
This may well be the most important thing you do before beginning your self build home. An architect has experience in all areas of construction and can see you through from ground breaking to completion and all issues in between.
See additional information - "Appointing an Architect"

2. Budgeting
Get your budget sorted from the beginning and don’t allow the costs of your self build home to spiral out of control. Set your budget with help from your architect and have a ten percent contingency fund available if possible. This means considering buying a plot, creating access, the actual build, first and second fixes and interior decoration. Using the experience of your architect to set realistic budgets will actually save you money.

3. Mortgage Agreement
Many banks will agree self build mortgages and will release pockets of funds as each build stage is reached. Your architect can help ensure that these milestones are reached timeously so that your project can be completed and handed over to you at the right time.

4. Buying A Plot 
Anyone considering a self build home needs a plot of land. Here again your architect will be worth their weight in gold as they will be able to see flaws that the average layperson cannot. For example is the plot properly serviced or are the utilities half a mile up the road? Is the plot sloped, sited under an electricity pylon or will those picturesque trees and that little river cause a problem?  Watch the following short video which explains the important things to consider when buying land.

5. Applying For Planning Permission
Applying for planning permission and associated building regulation approval can be daunting if you are unaware of the finer legal points involved. A local architect will often have connections with the local planning office and will have developed a relationship with the officers working there. This can smooth the planning permission process as the architect will have a good idea of what will pass and what wont before handing in the plans.
See additional information - "Why don't all Planning Departments work the same way?"

6. Finding A Builder
Finding a builder and agreeing terms can be an important consideration for your self build home and you are probably best to use a local firm where possible. Asking for names of previous customers and contacting them for a testimonial can prove enlightening. Often an architect will have contacts throughout all the trades required for your self build and will be on site to manage each one.

These are just some of the considerations for your self build project and throughout the entire process you will find the services of an architect invaluable.

So, planning is vital and engaging an architect should be seen as an investment in your vision.

If you would like to discuss the benefits and financial sense of engaging a professional architect please get in touch to book your free consultation and get your project off to a flying start!

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Cowboy Builders - Protecting The Client

We've had quite a bit of debate on Linkedin regarding Cowboy Builders and what Architects and the industry can do to protect the Client.

What's your thoughts? Should we as architects be responsible for site inspection on EVERY project that goes through the warrant process?

Of course its extra money for our Clients but surely great peace of mind.

Please comment below.

Larkhall waste incinerator given go ahead : February 2011 : News : Scottish Architecture in profile the building environment in Scotland - Urban Realm

Larkhall waste incinerator given go ahead : February 2011 : News : Scottish Architecture in profile the building environment in Scotland - Urban Realm

Why An Architect Is Essential to the Success of your Commecial Construction Project

Commercial construction is a term that encompasses building a commercial unit from the ground up or taking an existing building and altering it to suit the needs of a new tenant. Under either definition an architect is an essential professional to have onboard the project from the very beginning.

At Block Architects we have extensive knowledge and experience in the field of commercial construction and along with our excellent customer care record we are an asset to have by your side during any type of commercial construction.

Building a unit from the ground up allows more freedom in design and method of construction. At Block Architects we are able to help you decide on the layout, point out any areas that need attention and keep the design logical as well as advising on construction materials. If for example you want a green commercial construction there are a variety of methods we will employ to achieve this and going green will have an impact on where and what materials can be used.

Commercial Construction - Going Green
In green commercial construction, speaking with an architect before choosing a plot of land will help make your choice the best one for your project. When designing green buildings architects tend to take inspiration from the area surrounding the built for example an inner city site may use a type of concrete that is mixed for its heat transferring properties where a more suburban site may require more use of natural materials such as wood or stone.

At Block Architects we understand all these aspects of green design and we work within the environs of the project to deliver our clients vision as closely as possible.

You should also carefully consider accessibility not only for future clients of your business but for construction materials. If materials have to be transported a great distance it could be argued that you project is not as green as you may think.

Inside your commercial construction there are a variety of ways to make your building green. Recycling grey water (waste water from wash hand basins) and rain water harvesting to use to flush toilets will make an impact on the environment and your water bill. Using solar panels to provide electricity will also impact your bills positively and in these methods and more Block Architects are able to guide you to what is best for your project.

Commercial Construction - Renovate and Revive
If your commercial construction project is to renovate an existing building again engaging Block Architects from the very beginning could save you a lot of time and money. We know if that wall can be moved, whether an RSJ will be required and how many toilets you will need to install.

Block Architects can help you plan the layout so that it is as efficient as possible for you and your staff and as pleasant as possible for future clients. We can advise on whether you need a full rewire or just partial, whether the windows need replaced or can be refurbished and where safety features such as fires doors are required.

As with a green new build commercial construction, when renovating an existing building, the materials used should be in harmony with the surroundings but also with the existing parts of the building. For example if you have a sandstone building then any extensions should be in sandstone, if the building is of red brick construction, then use red brick etc. In this way the building will retain some of it character and still blend with its surrounds.

New build commercial construction and renovation of existing commercial property both need planning permission and once again you will find the services of Block Architects essential. We have spent time gaining a good working knowledge of the ins and outs of the local planning and building control office and the relationships we have cultivated within both these areas of planning will be worth their weight in gold.

So whether you are considering a complete new build commercial construction or a revamping of an existing building getting Block Architects on board right from the beginning will ensure the very best outcome for your project.

For further information contact us using our online form or telephone Glasgow 0141 278 3632, Edinburgh 0131 278 0445 or Hamilton 01698 422 358 and arrange your FREE Consultation. Alternatively you can get a get a quote by completing our online form.



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