house specification am i missing something

trevboy

Have a look have i missed anything
Georgian style storey and a half block construction
Insulation
Walls: 100mm insulation (Kingspan/Quinn/Xtratherm) in a 150mm cavity with 100mm plastered inner leaf (for air tightness) and 100mm rendered outer leaf
Flat Ceiling:160mm (2 x 80mm) between ceiling joists, insulated plasterboard
Sloping Ceiling:140mm (2 x 70mm) between rafters, insulated plasterboard
Concrete floor: 80mm below screed
Underfloor heating with oil burner (can’t afford anything else at mo will change later)
Schiedel Chimney Systems a sealed from room system (no draughts no loss of room heat)
Wooden Sash and Case windows, double glazed with sealing system.
Wooden doors
pos mvhr

Does this sound like a reasonably efficient and warm house

Quazzie

Can you please clean it up so its legible

bauderline

What's the required gap between the insulation and the membrane on sloped ceilings.... 40 or 50 mm ?

P.

trevboy

Sorry new to this

1) Think i cleaned it up, didnt like cut and paste

2) 50 mm gap required between insulation and membrane

Any advice happily received

sinnerboy

0.15 u value for UFH so at least double insulation there

Download relevant Acceptable Details here for junctions and openings details - the insulation layers must be as far as possible - continuous

http://www.environ.ie/en/TGD/

Aim for air tightness min 0.5 - and install HRV

You will need a min amount of renewables - look here

http://www.environ.ie/en/Publications/DevelopmentandHousing/BuildingStandards/FileDownLoad,19069,en.pdf

waraf

A BER assessor will be able to assess your house properly and give it an energy rating. Check http://193.178.2.42/SearchAssessors.aspx edit: syd for a list of assessors in your area

Edit:

waraf...

the proper location for a list of assessors is the SEI website.

To link to that organisation may be seen as promoting one organisation over another, which is not allowed on this forum.

This should be noted by other posters as well, please.

Syd

sinnerboy

^ + 100% aggree

trevboy

Thanks

just the sort of info i am looking for

should have said that i'm building in Fermanagh

Any further advice or links would be appreciated


If i double up the ground floor insulation and reduce air leakage as much as i can is this a good specification, or do i need to beef it up anywhere else.

sinnerboy

not familiar with NI regs - but no matter following the ROI details won't see you go far wrong

A 150 wall cavity will require that a structural engineer certifies that cavity



if going oil boiler - do so by reference to this data base - make sure you get the most efficient type

http://www.sei.ie/Your_Building/BER/BER_Assessors/Technical/HARP_Database/Boiler_Search_Page/

For HRV units - search hear

http://www.sap-appendixq.org.uk/search.jsp

trevboy

Thanks Sinnerboy

Amazing I would not have found all this detail

If anyone else has any ideas please feel free to chip in

Glad i posted :D:D:D:D:D:D

PJMCKE

Will you keep in touch . I am at the same point as you. I am using the same as you ( balanced flue system for 2 sotves in two rooms and sash windows with HRV and insulation). I am interested in your costings on the flue and HRV.The airtightness is critical for the HRVto be efficient .If your airtightness is very good as i am trying to do with two stoves in the house, then why not encorportate solar power into the water/heating and possibly into the HRV.
PM me if you can

trevboy wrote: »

Have a look have i missed anything
Georgian style storey and a half block construction
Insulation
Walls: 100mm insulation (Kingspan/Quinn/Xtratherm) in a 150mm cavity with 100mm plastered inner leaf (for air tightness) and 100mm rendered outer leaf
Flat Ceiling:160mm (2 x 80mm) between ceiling joists, insulated plasterboard
Sloping Ceiling:140mm (2 x 70mm) between rafters, insulated plasterboard
Concrete floor: 80mm below screed
Underfloor heating with oil burner (can’t afford anything else at mo will change later)
Schiedel Chimney Systems a sealed from room system (no draughts no loss of room heat)
Wooden Sash and Case windows, double glazed with sealing system.
Wooden doors
pos mvhr

Does this sound like a reasonably efficient and warm house

trevboy

Hi PJMCKE

Will keep in touch only getting my ideas together

No prices as yet

Need to sell house so start may be delayed by this

Will PM but not sure how just yet.

sinnerboy

this is a very user friendly over view tool

http://www.energysavingtrust.org.uk/business/Business/Building-Professionals/Helpful-Tools/Best-practice-house