Evolved Energy Solutions have begun work on the residential energy renovation project below this week. As the appointed energy consultants for the job we have provided a guideline specification document for the client to use during the construction process. The property is the historical family home of Mr. Glen Lee in Naas Co. Kildare. The end goal is to take this small two bedroom cottage and turn it into a modern four bedroom “A2″ Building Energy Rated family residence.
Front elevation of 1900s Cottage to be brought up to an “A2″ BER Rating
Thankfully the client Mr Lee is an experienced heating contractor http://www.leeheating.ie/ who has a strong grasp of the difference between a good energy rating and an energy efficient low running cost property. We have worked with Lee Heating on a number of residential projects over the past few years and it a pleasure to be involved in their personal home building project also. To achieve the clients goal of reaching an “A2″ Building Energy Rating we have in conjunction with Mr Lee designed the mechanical services to work on a combination of Air to Water heat pump, solar thermal heating and hot water, wood burning stove and a full mechanical ventilation heat recovery system. The property will achieve a minimum air tightness level of 1M³/(h.M²)@50Pa which we intend to achieve through a mixture of DAFA air tightness materials and good construction techniques. Evolved Energy Solutions will provide a quality control air tightness test at a mid stage of construction to ensure we are on target.
Existing Rear elevation of property
As you can see below Mr Lee has gone to the extent of removing all the original existing floors and all external wall surfaces will be upgraded internally. The only original features to be retained are the existing roof timbers and external front elevation walls.
All existing floors have been removed
We will be dropping in to assist Mr Lee in this renovation project over the coming months and will keep updating his progress on our Blog. If you have any questions about the house please feel free to add a comment !.
We were back visiting Glenn and his A2 Building Energy Rating home extension / renovation project this month and were delighted to see the steady progress he is making. The property now has the new windows and door frames installed throughout and is ready for the insulation, first fix plumbing heating and electrical to be installed. After that its time for the air tightness membranes and additional warm board insulation to be installed.
Rigid Insulation used to prevent thermal bridging around original construction methods
As the image above illustrates Glenn has used a rigid sheet of insulation to internally insulate the property against cold bridges generally associated with older buildings. This application of a rigid insulation material will dramatically improve the heat up rate of the property and associated heat loss.
Using a thin foil insulation Glenn has thermally broken the stud partition walls throughout the property.
A layer of foil insulation was placed between the stud partition walls floor plates and stud frames. This will lead to a quicker heat up rate on the under floor heating system when in operation.
All mechanical services located outside the property will be pump and wired in highly insulated duct work ensuring heat loss is avoided where possible.
We will be dropping back down to keep an eye on this project within the next 3-4 weeks and hope to see more good quality work by Glenn!