The thermal performance and interstitial condensation issues associated with hollow block construction were really about the combination of leaky plasterboard and
internal wall insulation that typically went with it.
Not exact matches
engineered lightweight timber frame construction (FSC Certified) Warmcell cellulose fibre
insulation external
wall and roof cladding varies (options include timber, corten steel, fibre cement, rubber, aluminium, zinc) aluminium & timber composite windows by Velfac
internal doorset by Sunfold rooflight (optional extra) by The Rooflight Company Energy Label A + rated kitchen appliances sanitaryware by Duravit; fittings by Hansgrohe stainless steel drainage pipes and fittings by Blucher LED / low energy lighting by Philips electric underfloor heating by DEVI photovoltaic panels (optional extra); solar water heating (optional extra) whole house ventilation by Vent - Axia (optional extra) wood burning fireplace by M Design linoleum / cork flooring by Forbo; timber flooring by Junkers; carpet / plant fibre flooring by Crucial Trading solvent / VOC free paint and varnish by Ecos Organic Paints bike storage by Cycloc
We also cut away all the joist ends, parged the
wall and then hung the joists away from the brickwork so they were out of capillary contact with the
wall, which will be cooler and potentially damper after
internal insulation.»
Thermal bridging: Party
wall returns with
insulation to 1m, and
internal walls with insulated skirting board details.
SEAI already offers grants for three types of
wall insulation (external
wall insulation,
internal dry lining and cavity
wall insulation) as well as attic
insulation, for new homes built before 2006.
(above, clockwise from top left) the
walls of the eight units at Garville Drive were constructed from traditional concrete - block cavity -
walls, with 100 mm of Xtratherm full - fill Cavitytherm board between the inner and outer leafs; Gyproc Airtite Quiet plaster behind 25 mm battens for the
internal service cavity prior to installation of plasterboard, with airtightness detailing of key junctions using Siga tapes also visible; 150 mm Paratherm PIR
insulation on the flat roof, part of a Moy extensive green roof system; a Kingspan Environmental rainwater harvesting system feeds garden garden taps at the development.
1 Oscar Baldry getting down to work in the old newsagent's shop; 2 laying Kingspan and Ecotherm
insulation in the ground floor of the old shop; 3 first floor metal web joist detailing, with membrane behind the joists for airtightness; 4 ground floor
walls feature 50 mm Xtratherm
internal insulation; 5 this is followed inside by an Intello vapour control barrier and a further 25 mm Xtratherm; 6 the new timber frame first - floor twin - stud
walls and roof rafters are of a fully breathable construction and full - filled with Warmcel cellulose
insulation; 7 holes in the timber - frame where the Warmcel
insulation was pumped in; 8 a pro clima Intello membrane on the inside of the first - floor
walls and roof; 9 and finally, 50 mm Thermafleece (sheep wool) lined service cavity to the interior.
Secondly, the values are not specific to any construction type, even though the differences in psi - values for the same junction, between externally - insulated masonry, full - fill cavity
wall and partial - fill cavity
wall with
internal insulation, can be very significant.
In the end though, the amount of difference is quite minimal, and with the only
internal walls being between the bathroom and the rest of the house, the extra thickness for sound
insulation is also a benefit.
Floor edge
insulation: Against all existing retained
walls (
internal and external) 150 mm Platinum EPS taken from underside of slab level all the way down to the footings (approx. 700 - 800 mm vertically), applied internally to external
walls and both sides of
internal walls.