The phrase
"thermal envelope" refers to the materials and structures in a building that help to control the flow of heat. It includes things like insulation, windows, and walls that work together to keep the indoor temperature comfortable and energy-efficient.
Full definition
The reduction in energy use from a high
performance thermal envelope will provide cost savings throughout the life of the building: a win for both the owners and the city as a whole.
The building incorporates passive design features that create an
improved thermal envelope that will maintain a comfortable living environment with minimal space heating or cooling.
This is because the
airtight thermal envelope provides significant thermal inertia that ensures indoor temperatures remain very stable.
The dedication to a highly airtight,
continuous thermal envelope posed a threat to the family dogs — as a dog door would have created a significant thermal weak spot.
Roof windows: Two Keylite double glazed windows, one in each stairwell — outside
of thermal envelope of apartments.
EcoDEEP Haus will be mega energy efficient by utilizing
good thermal envelope strategies, passive solar techniques, active solar energy systems (hot water and PV), and possibly a small wind turbine.
Regional climate analyses [38] indicated this area of frozen ice and snow was not within the appropriate
thermal envelope for Bd, but measurements of water temperature indicated that solar heating was capable of warming ponds to levels tolerable by Bd.
The
building thermal envelope shall be greater than or equal to levels of efficiency and Solar Heat Gain Coefficient in Table 402.1.1 or 402.1.3 of the 2009 International Energy Conservation Code.
«Long - term projections of the type presented here are always crude caricatures but I like this study because it does take a more mechanistic approach based on the known habitat requirements of the species rather than using a more traditional and
simplistic thermal envelope model,» he said.
Also note that the building enclosure may contain, but is not the same as, the so -
called thermal envelope, a term that is used to refer to the thermal insulation within the enclosure.
Specifically, the CLEH proposes that outbreaks of chytridiomycosis are triggered by a
shrinking thermal envelope, in which maximum temperatures become cooler, and minimum temperatures become warmer [17]; this effect is hypothesized to be most pronounced at mid-elevations.
The passivhaus building envelope requires a high -
performance thermal envelope, it must be continuous and it is key to the fabric first approach.
These pictures were taken at an open house for a home built by Oasis Hybrid Homes near Emigrant, MT.. A very nice home with a
good thermal envelope, rain catchment, grey water recycling, and solar water and electricity.
As an architect, I can't risk installing a skylight that hurts the building's
thermal envelope or that causes my clients problems down the line.»
Another part of
the Thermal Envelope are the windows - how they are sealed and the minimum requirement for Solar Heat Gain.
In passivhaus design and construction, there are frequent references to the «building envelope» and the «
thermal envelope.»
We just need to make sure
the thermal envelope is good and complete again when we close the doors and windows.
Anyone designing, constructing or upgrading
the thermal envelope of a building to modern energy performance levels is duty bound to understand and minimise thermal bridging, or suffer the consequences.
Good solar orientation and getting
the thermal envelope right can avoid the need for a lot of machinery to make a home comfortable.
Windows, doors, rooflights, curtain walling and any other glazed elements often lose (or gain) significantly more heat than the surrounding walls or roof of
the thermal envelope.
will think it is quite acceptable to have a steel portal - frame poking through
the thermal envelope.
Start with optimizing the building orientation and
thermal envelope to improve energy efficiency.
Windows are a weak point in
the thermal envelope.
Just know where the boundary of
the thermal envelope is.
Your thermal envelope is going to have to be this good,» Duerfeld said.
You can get so caught up in PHPP that you end up designing from the outside in as you worry about window sizes,
thermal envelopes, walls and so on.
Typically, the risk of surface condensation and mould growth increases with internal humidity loads in buildings and / or reduced quality of
the thermal envelope.
Just to get things started, here are some initial thoughts on providing solar heat and a better
thermal envelope:
Thermal bridging: Externally insulated generally, all junctions thermally modelled, all external structural items thermally isolated from
thermal envelope ensuring continuity of thermal envelope.
The thermal envelope upgrades consisted primarily of adding external foamed in place insulation, adding attic insulation, and thermal window treatments.
Greg used a balanced approach consisting upgrades to the home's
thermal envelope to reduce heat loss, and then the addition of a solar heating system sized to meet the remaining heat loss.
This way there are no cold ducts within
the thermal envelope at all.
The timber wall panels are fixed down to the floor slab which has an insulated edge to maintain the continuity of
the thermal envelope.
But it all points to the validity of your final words... «improve your home's
thermal envelope».
The integrated design approach of the international Passivhaus Standard encompassing
the thermal envelope, thermal bridge free construction, airtight construction, good ventilation and high - performance windows ensures a condensation - free indoor environment.
In general, green builders strive for low levels of air leakage through
their thermal envelopes, and high levels of insulation.
Encanto was considered to be reasonably power - efficient when it was built, but between then and now, processor manufacturers have increased the core count and lowered
the thermal envelopes of their fastest machines, with the result being that the performance per watt of this machine is dismal when compared to others:
So they have spent all this money and time to figure out that the biggest bang for your buck comes from building
the thermal envelope properly.
We have watched this movie before and know the ending: improve
the thermal envelope.
The most important difference between this home and a Maryland code - compliant home is the improvement in
the thermal envelope — the insulation and air barrier, says NIST mechanical engineer Mark Davis.
Wherever possible, the steel systems were installed so that they didn't cross from outer to inner leaf, and so didn't break
the thermal envelope.
Any cantilevered structure, particularly one as large as a balcony, represents a major interruption in
the thermal envelope.
The Passivhaus Standard requires a fabric first approach and a high - performance
thermal envelope.