Sentences with phrase «on airtightness»

And the first step in answering how, is by specifically focusing on airtightness.

There's also considerable room for improvement on airtightness levels required in Part L1A, currently standing at 10m3 / hr / m2 compared to a margin - ally better 7m3 / hr / m2 in Ireland.

Not exact matches

With a little care in design and on site, airtightness targets that may seem impossibly tough are anything but, argues leading architect and certified passive house designer Simon McGuinness.

In a range of naturally ventilated homes with airtightness ranging from 5 to 20 ach @ 50Pa, winter air exchange rates were estimated to vary between 0.2 and 0.7 ach — and the ventilation rate was not closely related to airtightness, which casts doubt on the long standing assumption that infiltration can be seen as part of the ventilation strategy.2

Central to the scheme's success has been the creation of simple, buildable details, a systematic project management approach and on - site training from passive house certifiers The Passive House Academy and airtightness specialists clíoma house.

«There was going to be a carport on the lower ground floor, and a garage, but once I started looking at it, I realised there were loads of areas where it was going to be difficult to get thermal bridgefree construction or achieve the airtightness.»

Lstiburek, J.W., «The Drywall Approach to Airtightness», CSCE Second Conference on Building Science and Technology, Waterloo, Ontario, November 1983

Intello Plus vapour control and airtightness membrane on underside of roof fully taped at all joints with Tescon Vana airtightness tape and taped to Spanotech wall airtightness layer.

So it's refreshing to find that the designer of this contemporary Dublin home put so much attention on insulation, airtightness and indoor air quality — as well as good looks.

They can also make the airtightness details complex and harder, or simpler depending on the choices they make.

Following airtightness, 475 focuses on related components such as high - efficiency ventilation by Lunos, ecological insulation by GUTEX and FOAMGLAS, triple - pane roof openings by LAMILUX and FAKRO, and Passive House energy balance software by the Passive House Institute — all complementary and essential elements in making high - performance buildings.

Structural engineering has a significant impact on design simplicity, thermal continuity, airtightness and more.

Location: Cameron Close, Freshwater, Isle of Wight Completion date: August 2015 Budget: Total scheme costs circa # 4.9 m Passive house certification: Part certified with remainder pending Space heating demand (PHPP): 14.4 kWh / m2 / yr Heat load (PHPP): 9 W / m2 Primary energy demand (PHPP): 98 kWh / m2 / yr Environmental assessment method: Code for Sustainable Homes level 3 Airtightness (at 50 Pascals): 0.48 ACH Energy performance certificate (EPC): B 84 - 88 Thermal bridging: Details developed to minimise thermal bridging, concentrating on critical junctions and window installations.

Roof: The main roof construction consists of fi bre cement slates on timber rafters, with 600 mm Rockwool insulation at ceiling level, a taped plywood airtightness barrier and services voids under, with a plasterboard finish.

Barry McCarron of CREST explains that the centre supported the project by providing advice on the two critical passive areas of airtightness and thermal bridging.

1 As work progresses on the foundations, a plate compactor is used to ensure a solid, stable base for the concrete slab; 2 pouring the concrete slab; 3 a cross-section of the wall build - up showing wet dash finish followed inside by external insulation, 215 mm solid block walls, sand - cement plaster and insulated plasterboard internally; 4 airtightness detailing around joist ends; 5 pro clima Intello airtightness system under counter battens to create a service void while minimising airtight layer damage by service penetrations; 6 a parge coat serves as the airtight layer on the inner face of the single leaf block walls.

Putting aside concerns about some of the assumptions in Deap — for instance assuming air permeability of homes without airtightness test results, when the evidence indicates that homes built in the second half of the 20th century may be much leakier than pre-war homes — HPAI's SEAI liaison officer John O'Shaughnessy said: «Deap is the preferred tool of the department and has proven to work on a lot of social and fuel poor energy upgrades in the past.»

«My biggest fear throughout was the right level of airtightness on what was a complex design — three storeys, plus a basement, plus a flat roof.»

(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.

67 % of readers enquired about airtightness products, making it the most popular enquiry; Next came insulation on 65 %, with passive house & low energy build systems neck and neck with heat recovery ventilation on 57 %; 47 % of people enquired about rainwater harvesting, making it the most popular non-energy related category; 80 % of readers enquired about one or more types of renewable energy technology.

Build - up: Solitex Front Humida breather membrane, followed inside by 120 mm Kingspan Kooltherm K12 rigid insulation, on Intello Plus airtightness membrane / vapour check, on 78 mm cross-laminated timber panel.

Roof: Traditional 3» corrugated cladding consisting of 0.7 mm thick PVC Plastisol coated galvanised steel externally, with 25x75mm vertical battens at 600 mm centres with 50x50mm horizontal battens fixed at 600 mm centres, with Timco 300INW 8 x 300 wafer head screw on 180 mm Kingspan Kooltherm K7 rigid insulation, on Intello Plus airtightness membrane and vapour check, on 120 mm cross-laminated timber panel forming main roof structure or 78 mm cross-laminated timber panel kitchen roof structure.

It is essential, however, that the house has been properly designed in PHPP and then well - executed on - site achieving the required levels of airtightness and low thermal bridging.

Optimal results are achieved by assisting your builder on site, ensuring unbroken continuity of insulation, thermal bridge control, airtightness and wind - tightness from phase to phase.

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.

Standing on the top of the vault - not budging at all: Happy participants cheering: Everything is harder when you do it at the wrong time - the airtightness paper should have been in before the bale vault was built.

The worst airtightness test result on completion was 0.812 ACH at 50 Pa..

400 mm Metac mineral wool insulation between rafters over Intello airtightness membrane with sealed joints and edges, on battens, on Gypframe ceiling system with 12.5 mm plasterboard & skimmed finish.

Ultimately all of the forethought and planning proved its worth, and the house got 0.3 air changes per hour on its first airtightness test, and 0.4 on its final test.

On phase two however, the airtightness strategy was exemplary, and delivered results as low as 0.29 ACH — among the best results ever achieved in this country — ably assisted by experienced airtightness contractor Roman Szypura of Clioma House.

«The objective for the phase two houses,» says Stuart, «was to build better houses by focusing on integrating a designed ventilation system, a high degree of airtightness, minimal thermal bridging and high thermal performance.»

In addition, wet plaster provides an ideal airtightness membrane, leaving the consideration of this aspect down to just the critical junctions and the use of a membrane arrangement on the underside of the roof trusses.

The Sustainable Energy Authority of Ireland has announced a new $ 5million deep retrofit pilot programme for 2017 projects to upgrade inefficient buildings to an A3 rating or better — with a particular emphasis on ventilation, airtightness, thermal bridging, interstitial condensation and preventing overheating.

The PHI standard also has an airtightness requirement (≤ 0.6 air changes per hour at 50 Pascals, ACH50) and a comfort requirement based on temperatures in the house.

Real progress can be made in tackling the root causes by focusing on measuring the airtightness of building enclosures and making them airtight.

Construct Ireland, the magazine which evolved into Passive House Plus, featured two of his exemplary sustainable projects, perhaps most notably including a substantial mixed - use scheme on Galway's Forster Street from 2006 that featured passive solar design, external insulation, triple - glazed curtain walling, airtightness, MVHR and renewables amongst other measures.

The buildings were carefully detailed for buildability, toolbox training was delivered for site operatives by Barry Durkan, and renowned airtightness expert Roman Szypura of Clioma House — who had served as airtightness contactor on phase two — acted as airtight consultant.

Galway Completion date: January 2014 Budget: confidential Passive house certification: n / a Space heating demand (PHPP): n / a Heat load (PHPP): n / a Primary energy demand (PHPP): n / a Airtightness (at 50 Pascals): 0.56 ACH at 50 Pa or 0.61 m3 / m2 / hr at 50 Pa Energy performance certificate (EPC): pending Carbon performance coefficient (CPC): pending BER: pending Thermal bridging: Armatherm bolt - through structural thermal breaks were used on the cantilevered steel balcony.

Deciding to remove the chimneys, maximise airtightness and go for MVHR was something we had to get our heads round early on, but we feel it was the right decision.

Another application is for buildings which narrowly miss the Passive House Standard on account of unplanned deviations in construction, e.g. airtightness level not meeting the requirements.

Relying on the purchase of large swaths of subsidized photovoltaic's or complex and expensive heating / cooling systems to reduce the energy signature of a building before using more economical strategies such as efficient appliances, good insulation, windows, and airtightness is widely accepted as a waste of resources (materials and money).

«It's been a journey together working on retrofit for the last eight years — getting used to the idea of what's effective, what's cost - effective, and to trial ideas on relatively small contracts, and to be thinking about airtightness, thermal bridging and ensuring we get adequate ventilation.

The Home Performance Index is aiming to do just that, gathering and sharing the data on best practice for a full range of indicators from airtightness to lesser known benchmarks on waste management, sustainable procurement, ecology, water, and embodied carbon.

Relying on excessive levels of insulation, airtightness, and window performance rather than considering the use of environmentally sound and more economical supplies of energy is also wasteful of resources and uneconomical (although until recently this has rarely been a problem).