We have been building passive homes since 2012
At Kilduff Construction we have a proven track record in the construction of passive new build bespoke homes. We have been building passive homes since 2012 using a variety of systems including concrete block, concrete ICF and timber frame.
We build homes to the German Passivhaus standard which can be summarised as follows:
Thermal Insulation
All opaque building components of the exterior envelope of the house must be very well-insulated. For most cool-temperate climates, this means a heat transfer coefficient (U-value) of 0.15 W/(m²K) at the most, i.e. a maximum of 0.15 watts per degree of temperature difference and per square meter of exterior surface are lost.
Passive House Windows
The window frames must be well insulated and fitted with low-e glazing filled with argon or krypton to prevent heat transfer. For most cool-temperate climates, this means a U-value of 0.80 W/(m²K) or less, with g-values around 50% (g-value= total solar transmittance, proportion of the solar energy available for the room).
Ventilation Heat Recovery
Efficient heat recovery ventilation is key, allowing for a good indoor air quality and saving energy. In a Passive House, at least 75% of the heat from the exhaust air is transferred to the fresh air again by a heat exchanger.
Airtightness of The Building
Uncontrolled leakage through gaps must be smaller than 0.6 of the total house volume per hour during a pressure test at 50 Pascal (both pressurised and depressurised).
Absence of Thermal Bridges
All edges, corners, connections and penetrations must be planned and executed with great care, so that thermal bridges can be avoided. Thermal bridges which cannot be avoided must be minimised as far as possible.
Projects Portfolio
Kilduff Construction did an outstanding job on our commercial to house conversion and retrofit. Their team were professional, efficient, and detail-oriented, ensuring everything was done to the highest standards. We’re thrilled with the results and highly recommend their services.
Kilduff Construction have completed numerous projects in our school in recent years, including new classrooms and a new car park. The work on each project has been immaculate. The projects were delivered on time, within budget and with minimal fuss. Donal and all at Kilduff Construction are a pleasure to work with.
Cannot recommend Donal Kilduff and his team enough after they were recommended to me from a neighbour. From start to finish, Donal listened to my vision and worked with us to help bring that alive. Every interaction with the whole team was so professional, efficient and friendly. The end product was done to a meticulous standard and we are so happy with the result’.
Donal maintained a constructive client relationship throughout our build and ensured that high quality detail design was applied to the project. I would definitely recommend Donal for similar projects in the future—his expertise and collaborative approach made everything run smoothly.
Whilst I was delighted when I found out I had secured Kilduff Construction to do my house renovations I only truly realised how lucky I was in retrospect. Donal and his team went above and beyond in every aspect of the renovation. What impressed me the most was the attention to detail even down to the smallest one. Donal took the time to have a number of meetings with me to find out what exactly I wanted to achieve.
From start to finish a very professional service was provided by Donal and his team at Kilduff Construction. Everybody involved was easy to deal with, any queries/modifications were solved without issue. We were so pleased with the end result being completed both on time and within budget. We would highly recommend Kilduff Construction for any project.
My building and business is well over 100 years old, I am the 4th Generation, so when the time came for the roof to be replaced I needed a professional team with knowledge, vision and compassion. Donal was incredibly professional from that very first consultation, he was never more than a phone call away.
Kilduff Construction was great to work with right from the very beginning. What differentiated Donal was how personally invested he was in the project. The expertise of Donal and his team was reflected in their attention to detail and quality of finished work. Can’t recommend Kilduff Construction highly enough.
It was a pleasure working with Donal and his team. From the outset Donal was invested in the project, his great ideas, genuine interest and advice resulted in a bespoke creative space for Tommy. Thank you Donal & Team.
