Sentences with phrase «of airtightness»

The Pro Clima system takes care of airtightness in the roof build - up, which was a challenge because of the complex roof structure

Industry experience has demonstrated that stick - built assemblies insulated with sprayed polyurethane foam insulation have higher levels of airtightness than conventionally - constructed, batt insulated assemblies.

To minimise costs, Richard and I did most of the airtightness taping ourselves.

«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.»

«The challenge was achieving a high degree of airtightness and minimal thermal bridging cost effectively, with some standard and some innovative but simple details.»

It is typically much easier to achieve the required level of airtightness when using a system - builder (whether concrete or timber frame), where most of the construction (including fitting and sealing of windows) is carried out in a controlled factory environment.

Difficult to say, but achieving the required level of airtightness is probably the most challenging aspect.

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.

He points out that in any house, regardless of its level of airtightness, you have to get an adequate supply of fresh air in, and you have to extract the stale, contaminated, moisture - laden air.

He explains that the build team deployed a range of techniques to bolster the airtightness performance of the building before the installation of the airtightness layer itself.

As the name suggests, it delivers an element of both airtightness and sound proofing.

One of the big contradictions inherent in Irish building practice is that despite ever higher levels of airtightness, we're not matching that with appropriate ventilation standards.

«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.»

At first glance that temperature difference between Part L1A and passive house might not seem much, but when you consider that the latter also ensures warmer surfaces (achieved through better U-values in opaque elements as well as windows), greatly reduced thermal bridges and some 20 times better levels of airtightness, the comfort levels provided by the two approaches are, frankly, worlds apart.

«We wanted to achieve a high level of airtightness and also ventilation, to achieve as close to [the passive house standard] as possible.

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.

Gerry's brother, Stephen — a carpenter by trade — completed most of the airtightness work.

In terms of Airtightness, a maximum of 0.6 air changes per hour at 50 Pascals pressure (ACH50), as verified with an onsite pressure test (in both pressurized and depressurized states).

As Janet Cotterell of Passivhaus Homes explains, there was a pre-designed set of details, worked out carefully for minimal thermal bridging and ease of airtightness installation, so much of the design work had already been done.

Not exact matches

They studied the design of a 12» by 9» section of exterior wall from a typical multifamily unit, comparing two versions of the wall: one using conventional construction and double - paned windows, the other employing Passive House thickness, insulation, airtightness, and triple - paned glazing.

Despite increasing standards of insulation and airtightness, housing developers face few requirements to provide better ventilation and indoor air quality for new home buyers — beyond knocking extra holes in walls.

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.

The primary reason for requiring airtightness in buildings has nothing to do with energy efficiency or occupant comfort, writes Helen Brown, head of building physics at Encraft — it's for the protection of the building fabric.

«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.»

A building's airtightness test result isn't just an indicator of its energy efficiency — it's an unambiguous indicator of build quality.

When it came to upgrading an old stone - walled building to the Enerphit standard — with all the inherent challenges such an upgrade poses for energy, airtightness and moisture — who better to have as your client and defacto site manager than a professor of physics?

The first airtightness test has taken place at phase three of the Silken Park development at Citywest, which is set to be Ireland's largest residential passive house scheme.

We felt that as the majority of the insulation was external, and outside the airtightness line, the moisture risks due to interstitial condensation would be reduced,» Patrick Osborne explained.

«This told us that with an external airtightness strategy there was no chance of meeting the passive house airtightness level — and even Enerphit could not be guaranteed, so the strategy was changed to use an internal air barrier.»

The strategy worked, and the fabric of the new houses passed the airtightness test comfortably at 0.4 air changes per hour at 50 Pascals.

Along with a much wider ecological agenda, the house employed fabric first principles of insulation and airtightness, and met passive house design targets at a time when the standard was still in its infancy in the UK.

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.

Energy efficiency is delivered through triple - glazed windows, an «excellent level» of thermal protection, a high level of building envelope airtightness, construction that us largely thermal bridge - free and a ventilation system with heat recovery.

The House of Energy features triple - glazed windows, an «excellent level» of thermal protection, a high level of building envelope airtightness, construction that is largely thermal bridge - free and a ventilation system with heat recovery

Jobs: Very low energy and Passive House buildings require increased attention to enclosure construction and the installation of insulation, airtightness and high quality windows.

Make it Tight: Building Enclosure Airtightness Training In this 4 hour comprehensive introduction to building airtightness and air sealing, attendees will gain detailed knowledge about theory, details, strategies, and practical applications of building enclosure Airtightness Training In this 4 hour comprehensive introduction to building airtightness and air sealing, attendees will gain detailed knowledge about theory, details, strategies, and practical applications of building enclosure airtightness and air sealing, attendees will gain detailed knowledge about theory, details, strategies, and practical applications of building enclosure air sealing.

Reductions are obtained through high levels of insulation, airtightness, and heat recovery, while designing for proper solar shading, solar heat gain, and internal heat gains.

After the air barrier is complete, but before the drywall is up, we will conduct another blower door test to make sure that the building's airtightness is below the Passive House retrofit standard of 1 ACH50.

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.

-LSB-...] Airtightness and Mechanical Ventilation with Heat Recovery: two essential elements of comfortable, radically energy efficient buildings.

In addition to presenting at conferences, 475 publishes videos, details, writings, and other aids that help industry practitioners better understand the philosophy and practice of building airtightness and high performance.

Architects would benefit considerably more from reading this section of the book than by assuming they understand the Passivhaus Standard by way of the oft - quoted passivhaus energy consumption and airtightness benchmarks.

As Lloyd points out, the «Superinsulated» house was really the origin and (along with airtightness) is the foundation of Passive House.

Airtightness, is of course, one of the pillars of passive building.

The final airtightness test recorded a result of 0.77 ACH at 50 Pascals — well within the Enerphit threshold.

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.

Daire estimates that the cost of opting for the passive house standard compared with the conventional build originally tendered for was just 6pc higher, which included the heavier insulation and thermal bridge detailing, airtightness work, the MVHR system and the passive house certification.

An airtightness result of below 1 ACH at 50 Pascals is not a nice - to - have.