#DeepRetrofit
Holzbau, hemp, earth building #deepretrofit >> ANY concrete palace you can show. (Challenge)
November 26, 2024 at 12:32 PM
So, changing the air filters on the Mechanical Heat Recovery Ventilation System in Cork City.

Wait until the end for outside air filter. This is after 2.5 months, with coal fires only really kicking off in October or so.
November 28, 2024 at 7:10 PM
Pleasing. Outside air temperature -3degC, incoming air being warmed to 17degC by outgoing stale air. The wonders of Mechanical Ventilation with Heat Recovery. #MVHR #EcoBungalow #Passivhaus #Passivehouse #retrofit #enerphit #deepretrofit
November 20, 2024 at 9:00 AM
Heat pump diaries:
Seems some eejit (it was me!) Knocked off the heat pump yesterday evening by accident. It had dropped to 16.5’C by this morning on a night when it was -3’C outside! So the insulation is keeping us fairly toasty anyway.
#DeepRetroFit #Heatpump
January 9, 2025 at 7:52 AM
In other news, ambient temperature only dropped one degree in the 12 hours it was off. #NZEB #DeepRetrofit
November 24, 2024 at 8:48 AM
Do you have a #renovation or #deepretrofit to show?

Here is a suggestion, I think hempcrete is perfect for many old buildings, not exclusively but especially timber frames. Just decide what should be visible, outside, inside or timber completely inside the hemp lime or hemp earth mix.
November 20, 2024 at 1:34 PM
Our Christmas tree in the hallway. We still are only living in part of the house after the #DeepRetroFit - soon we will have it all back in use. This year the hallway is getting the works!

#Speirgorm
December 20, 2024 at 11:39 AM
Have you undertaken training with us?
🙏 We have a free offer for our Alumni
🥇 1 CEPH/PHI point available for each live event
🏠 8 of our trainers will talk through 12 of the projects they have worked on
#passivhaus #EnerPHit #deepretrofit
📆 We start on Thursday 27 Feb
✅ 45 min online webinars
February 20, 2025 at 8:05 AM
Excited for the first proper cold snap of the year to see how our newly deep retrofitted house fairs!
This will be our first winter with a heat pump. So far, it’s living up to expectations. The insulation is so improved that it’s stays at 18/19*C before the heat pump kicks in. #DeepRetroFit
November 17, 2024 at 9:18 AM
"What if we've been wrong about the housing crises?"

Homes that Don't Cost the Earth #HDCE
is a UK project that is taking a fresh look at environmentally sustainable solutions to the housing crisis...

#DeepRetrofit
#AffordabilityCrisis
#ClimateCrisis
#FuelPoverty

youtu.be/FlIAcRCfWk8?...
Homes that Don't Cost the Earth - project animation 2025
YouTube video by Rising Tide
youtu.be
March 8, 2025 at 8:25 AM
🏠✨ 1937 Charlottetown home → Net-Zero Ready!

Join us on September 11 (11 AM MT) for Prima, Non Ultima — a free webinar on a #deepretrofit case study.

✅ 60%+ energy savings
✅ 80%+ heating reduction

👉 Register now: buff.ly/5g13ErV
#PassiveHouse #NetZero
#deepenergyretrofits
August 26, 2025 at 4:18 PM
Ireland has set ambitious targets, 500,000 homes retrofitted and 400,000 heat pumps installed by 2030.
But reaching these targets requires around 75,000 retrofits per year.

The real challenge isn’t the ambition, it’s delivery.

#RetrofitIreland #DeepRetrofit #BuildingPerformance #ClimateAction
March 19, 2026 at 11:30 AM
Its #deepretrofit weekend again like always. This time I used used sisal straw bale strings, stirred in an earth slurry to provide tape-free airtightness around all the weird spots if this old house.
Can you see that this is a 65cm wall now with added straw insulation?
October 7, 2023 at 6:12 PM
This retrofit preserved the original brick of a 130-year-old home while cutting its annual energy needs by over 60%! Read more about this awesome case study. You'll even learn the definition of "wythe"!

#deepretrofit #heatpump #greenbuilding

buff.ly/PVQTMIg
April 29, 2026 at 8:13 PM
@godostoyke.bsky.social used a modified Larsen truss to limit thermal bridging and hold 8" of compressed cellulose in this advanced envelope system. The innovation was essential to this #deepretrofit that made a 1971 bi-level home #netzero.

Read the case study: buff.ly/lHKqFBj
April 2, 2025 at 6:28 PM
This family cut their home’s energy use by more than 60% by electrifying their #HVAC and water heating systems and adding renewable energy. Explore the case study, our first mechanical-only #deepretrofit in the library & read the homeowner’s advice on what to ask your HVAC suppliers: buff.ly/LRRvwIq
October 23, 2025 at 7:17 PM
Our newest case study comes to us from Manitoba's @suncertified.bsky.social . The Full Monty, an envelope-first, #netzero ready #deepretrofit guided by Passive House principles, cut the home's annual energy consumption by 70 per cent.

Read the case study here: buff.ly/UN37Nhu
March 26, 2025 at 2:41 PM
This phased #deepretrofit in Ontario started back in 2022. Now they've just passed the midway point - foundation, mechanical and attic are done, and the home is already using 60 per cent less energy. Check out the case study here and follow us for updates.

buff.ly/QjuLg0m

#deepenergyretrofits
Southeastern Ontario Phased Retrofit
A staged retrofit done right.
retrofitcanada.com
May 28, 2025 at 4:59 PM
Another #deepretrofit case study! Check out how this project got a 130-year-old Montreal duplex with no less than three party walls, three different wall assemblies, a two-floor addition, and a rubble foundation to #netzero ready.

Case Study Link: buff.ly/7yEww6F

#deepenergyretrofits
Charon Retrofit Case Study
Fellipe Falluh of Retrofit Construction retrofitted an 1890s Montréal Row Home duplex to net-zero-ready.
buff.ly
March 5, 2025 at 9:33 AM
⭐️ Let’s welcome Samson Cree Nation to the Energy InSites program! ⭐️

💡📊 Learn more about how Indigenous communities across Canada are addressing their energy conservation and efficiency needs → yourcier.org/energy-insit...

#DeepRetrofit #EnergySavings #CommunityBenefits
August 1, 2025 at 2:45 PM
⭐️Let’s welcome Tribal Chiefs Ventures Inc. to the Energy InSites program! ⭐️

💡📊Learn more about how Indigenous communities across Canada are addressing their energy conservation and efficiency needs → yourcier.org/energy-insit...

#DeepRetrofit #EnergySavings #CommunityBenefits
May 9, 2025 at 2:46 PM
Exploring a potential large scale national building retrofit programme for the UK at @futurecitiescat , the scene is being set by @miller_klein #deepretrofit
January 10, 2025 at 4:37 AM
This three-phase, #netzero-ready #deepretrofit used AeroBarrier, #geothermal, and #solar to reduce the home's energy needs by almost 80 percent, all without any of the usual demolition needed to upgrade an envelope.

Read the case study and the one-year report here: buff.ly/40jk2EJ
June 10, 2026 at 5:42 PM
Just wrapped another case study: a century-old Toronto semi-detached home sheds its gas dependence and drafts. Through a #deepretrofit, the home slashed its energy demand by over 70%.

Read the case study: buff.ly/XBHf4Dc
Toronto Semi-Detached Brick
This 1908 home’s energy demands were cut by over 70%...
buff.ly
August 22, 2025 at 9:56 PM