I am proud to be working with Retrofitworks on the GLA warmer homes scheme. For the past year we have been providing retrofit co-ordinator services to the scheme and provided new energy efficiency measures for over 250 homes throughout London.
As well as providing new boilers we have been improving ventilation, insulating walls and roofs and helping customers improve the windows and doors of their properties. We have even provided a new boiler for a pensioner living in a caravan.
The scheme involves a number of fully trained Retrofit Co-ordinators developing a plan of energy efficiency measures for the project based on a telephone interview and an advanced energy survey from a Domestic Energy Assessor.
Once the measures for the property have been agreed with the homeowner installation is carried out by one of the PAS 2030 certified installers and once complete carefully checked by the retrofit co-ordinator.
The scheme is one of the first to offer this independent verification of the work and this is creating better value for the client and the GLA as the co-ordinator is adding in extra measures for the funds available.
The first stage of this project was replacing the insulation in the sloping roof of the dormer and adding storage to the eaves. The loft conversion has been done reasonably well and the flat roof area and rear wall properly insulated.
However the existing sloping roof was not so successful. Polystyrene insulation had been installed between most of the joists, but not all, not sure why but they had missed some areas leaving big gaps in the insulation envelope.
We replaced the 50mm of polystyrene with 50mm of KIngspan between the joists to create an airtightness barrier we filled all the gaps with Isocynate free expanding foam and then taped
them with aluminium tape. Then we added a further 50mm of insulated plasterboard below the joists.
Many loft conversions leave the eaves storage area uninsulated and the doors can prove a weak
point with the wind whistling through them. We had already added rockwool to the floor area and we took the wall/roof insulation down to meet this and insulated the end walls as well creating a ‘warm’ storage area.
I am currently refurbishing this gorgeous two bedroom flat in Putney. The client is very keen to improve the performance of the house and I am working on the structure to ensure it will be warm, airtight and condensation free for the future. A Parity Home Energy Masterplan has also been carried out for the property and we are using this to inform the refurbishment.
The flat is spread over two floors with two roof terraces and the top floor is a loft conversion, this means there are lots of different types of construction and different opportunities to add different insulation types suitable for that construction.
We are also working very hard to minimise the VOC level in the flat and using appropriate
materials to combat this. I have been been checking all the materials before they come on site and consulting with the client to ensure she is happy. We have had to compromise in some areas, for instance the ceiling height is restricted in the loft conversion so we are using PIR insulation to keep as much space as possible, we have managed to source Isocynate free expanding foam to fill the gaps though so won’t be adding anymore chemicals to the air in the installation.
I will be adding updates and photos as this fascinating project progresses. I will mark them all #putneyretrofit
I went to visit an extension in Kennington which has the biggest domestic green roof I have built. There are some very big skylights so it isn’t all green but it looks great. This first picture shows the rear extension with some rather fine timber cladding, you can see the plants poking over the top of the coping stones:
The combination of rain and sunshine we have seen this summer has been really good for the plants, even if people haven’t been so happy. I missed the peak flowering of this roof but there were still plenty in bloom on Monday. The clients daughter has a bedroom window looking out onto the roof and has been enjoying the developing scene.
The skylights really bring light into the house and the kitchen looks even bigger than the space the extension added on. You can see some of the plants waving in the breeze around the sides when you are having dinner.
A side return infill extension with an industrial style. Extensive use of reclaimed materials, high standards of insulation and a wildflower green roof.
We completed this project late on last year working with Clements Design as the architects.
The project aimed to turn a cramped kitchen into a spacious area for cooking, eating and socialising. There is an industrial and sustainability theme to the project, the materials used are often from or designed for factories. Electrics are contained in galvanised metal conduit and the floor is concrete. Walls are exposed brick, both reclaimed glazed brick and the existing London stock bricks revealed to the world. The large glass panels to the roof draw in light to what was once a dark area and bring out the rich colours in the reclaimed wood cladding.
Though the materials could be seen as austere they are softened by the contents of the room that reflect family life, there is space for a large wooden toy stove, a comfy sofa and a gorgeous oak dining table with mismatched chairs.
The large rear doors mean the garden can be seen and accessed easily from the house, the doors can be flung open in the summer for barbecues. The green roof will develop over time but already has wildflowers peeking over the parapet and they can be seen swaying through the glass roof.
The project was also designed in conjunction with the neighbours and they share the party wall and the box gutter.
Sustainability was a key part of the client’s aim for the project. Reclaimed materials were used wherever possible. All the bricks removed in the demolition stage were cleaned and re-used onsite to build the new structure. Internally there are two walls of glazed bricks reclaimed from a lift shaft in Kensington. The other walls are the original brick exposed and insulated on the outside where appropriate. The bi-fold doors are triple glazed with a u-value of 1.09 are factory finished for long life and are made from environmentally sourced timber from sustainable forests. The heating is underfloor and utilises the existing condensing boiler, three Nest controls were added to the system to control this and create two new heating zones in the house.
The wood (for drawer fronts, shelves and cladding) is from a reclaimed wood specialist in Guiseley, Leeds, called Machells and is cut down from Yorkshire Victorian mill joists.
The large pendant lamps are reclaimed from a 1950’s factory in the Stoke area.
The table was made in Leeds from British oak 35 years ago.
All the shelf brackets and drawer handles were made in England in foundries using all traditional methods.
All lighting is LED, even filament style traditional bulbs are actually LED.
The green roof is part plug planted and part seeded with a mixture of wildflowers, meadow plants and some sedums. The roof will flower through most of the year and provide habitat for insects and foraging for birds amongst other biodiversity benefits.
We have nearly finished the extension we have been working on for the last few months in Hackney. The walls, roof and floor are all in place and there is just fit out for the inside and the green roof to go on top.
Last week I completed another green roof in Streatham. It is on the rear of a really interesting house, a 1930s semi that is getting a complete eco-makeover from the owner. He has insulated the walls inside and out with wood fibre and remade the roof in solar panels and that is just the start. All Stephen’s neighbours find it hard to believe how warm the house is without loads of heating!
Anyway, last Wednesday he set aside so I could come along and help him build a green roof, here are the photos:
Just a quick update, we broke ground on a new extension last week. It’s mostly just digging at the moment but still exciting. I got to put up a sign outside the house:
The project will develop over the next few weeks. The walls incorporate high levels of insulation and will be made using reclaimed materials including a white glazed brick interior and re-used wood cladding.
I spent some time in @thewashcoffee going through the plans from Clements Design with Shaun the project manager on Wednesday, checking the build process and making sure we will avoid thermal bridges. The design looks sound and we are starting on the steel supports over the next few days.
The guys all look smart in the new Ecoalex hi vis vests and are looking for opportunities to save materials on site and re-use as much as they can in the build.
I am certainly dreaming of one, I enjoy Christmas as much as anyone but I do worry about the waste that goes on at this time of year. Presents are great but sometimes there are rather more than anyone needs, especially in a big family. Like many families we have instituted a one present per adult rule and this has certainly cut down on unnecessary pairs of slippers etc. However cute little nieces still need a present each and we still need to get a few presents for those close to us.
So now we have reduced what can we do to re-use and recycle the presents, along with getting some nice eco friendly presents for everyone. I have tried to find a few things that can help with this.
Eco friendly Christmas paraphenalia
As well as recycling your Christmas wrapping paper make sure yours is made from recycled paper, while your at it get some recycled crackers too. You can make your own Christmas decorations quite easily or buy ones made from recycled materials and all good lights these days use LEDs, saving you energy and reducing fire risk. I have listed a selection in the products section of the website that you can buy online.
Green toys for kids
To be honest kids toys are pretty amazing these days and you aren’t going to distract them entirely from computer games and plastic fun but there are lots of interesting alternatives out there that you can at least supplement them with. Every kid loves to climb in boxes and a cardboard rocket ship could be even better, a wooden racing car is a much healthier alternative to a plastic one for a small child, and with fewer chemicals. Kids also love creatures and creepy crawlies so a pond dipping kit or a bug jar could make them happy. More details of these eco friendly toys here. Thinking further ahead you could get a bat box and an id book and see what bats you can attract when they come out of hibernation.
Gadgets for grown ups
Everyone likes a gadget at any time of the year and Christmas usually brings lots along so why not get a few that help reduce energy use rather than increase it. I have been going on for a while about my Owl monitor and heating control and I still really love it. You can impress people by showing them your houses energy use on your phone and impress yourself by turning the heating on when you are on the bus home.
I recently started looking at products in B&Q as well as NHBS and Nigel’s Eco Store and they have just started to stock Lightwave products. These link up not just to the heating and electricity but also all the sockets and light switches in the house so you can create a real smart home and control the lights and all the appliances from a remote, your pc or your home. They sound great, if you buy some let me know how you get on.
How about saving water? A water pebble makes a cool little gift, put it in your shower and it helps you reduce water usage as well as looking funky. If too much water is a problem for you at times, why not get a green roof to soak some of it up?
If you have a wood burning stove you really must get an eco fan to go with it. These sit on top of the stove and circulate warm air around the house. They are made of two types of metal so it rotates when it gets hot.
I hope these gifts have wetted your appetite for a green Christmas, I have my eye open for some more and will add them in when I find some good ones.
I recently finished the first green roof I have built for a while and thought you might like to see a few pictures. This one was on top of a bike shed in Stockwell and it’s looking pretty good. Took a bit more work than I expected, although small it has just as many corners as a bigger one so had as many fiddly bits to do. I worked it out after a while though and it looks really good.
The clients had a good supply of soil so we didn’t need to get any elsewhere, they also had a good idea of what they wanted to plant. We used a combination of herbs, grasses and other plants. They wanted to try as many plants as possible to see which ones would take to the roof, should be a good plan and I hope the roof will evolve over the next few years, it will be interesting to see which plants are most suited to the roof conditions.
The only disappointment so far is the photos I took with my new phone which are all washed out and bluey. It’s just down the road so I will see if I can get some better ones but here are a few for now. If you want one for your shed or extension get in touch.