This will enable potential suppliers to have one to one surgeries with the our Design Team and other customers. The event will be funded by ERDF. More details to follow.
Another potential source of funding for this project?
To find out more visit the Technology Strategy Board stand at Ecobuild
Its time for an update, we have been quiet on the Coventry ECO House front.
We have the plans ready for approval and we have a reasonable budget for building two Eco homes. The problem is our current cost predictions significantly exceed the available budget. As the design is refined there has been some reduction in the predicted costs but we haven’t closed the gap yet.
This is due to premium pricing, more associated with first off prototype developments.
We know Eco houses like ours can be built with a increased budget, there are examples all across the UK. There is no value taking this route.
Our main purpose is to gear up the local market place to be able to supply affordable Eco homes, this is vital as the market grows.
At last weeks project board meeting we decided to make open up our shopping list to see if the potential suppliers can help reduce costs for this and future projects. Watch this space.
Here is the agenda for today’s event:
Assuming we are still looking for funding to enable us to monitor and evaluate our houses post construction/occupancy there is funding available from the Technology Strategy Board – Building Performance Evaluation Groups… The deadline for applications in the current tranche of funding is 18 Jan (register by 11 Jan) 2012… For more details visit https://connect.innovateuk.org/web/building-performance-evaluation/overview
Just had confirmation today from someone at BBA certs that they won’t apply the 25% penalty on thermal bridge calculations from an unapproved source until after the approval scheme is implemented – whenever that may be! Makes sense given that you can’t get approved without an approval scheme…
Proposed Code 6 solution.
If anything looks particularly difficult or expensive please let me know.
Specification
Worcester Bosch Greenstar 12i System Boiler with weather compensation, Greenskies 6 tube solar thermal (2057mm x 702mm), Greenstore 150l hot water cylinder (570mm dia). Boiler and hot water cylinder located in the kitchen.
Naturally ventilated, air permeability rate 5m2/hr.m2
Accredited Construction Details standard psi values assumed throughout (these will need to be calculated).
Brick / block cavity walls (u-value 0.11) 160mm Kingspan, basalt wall ties (assume 50mm air gap possible) wall thickness approx 450mm.
Beam and block floor (u-value 0.11) 150mm Kingspan.
Joist level insulated roof (u-value 0.11) 100mm + 300mm mineral wool, no loft access.
Windows and door (u-value 0.8)
Minimum PV requirement 6.2kWp (7kWp can be achieved with Sanyo moncrystalline: 24 roof panels + 4 brise soleil panels each 861mm x 1610mm).
Inverters to be mounted in box (instead of lean-to) on the west elevation. Bike store in garden shed.
SAP / Code Results
Maximum code credits for CO2 emissions (mandatory)
Maximum code credits for Fabric Energy Efficiency (much better than mandatory level)
Maximum code credits for NOx emissions (not mandatory)
This gives us a theoretical maximum of 93.22 code credits (90 required for code 6)
Please comment.
Gregg
Project Journal for the Coventry ECO House Project.
Design & Construction 2011 -2012
