What is an insulation system A sysem isolation generally refers to a set of techniques used to limit the transfer of heat between a warm and a cold medium using a thermal insulator. Found in thermal insulation:
How involved the transfer of heat? The exchange of heat between two media may be involved:
The insulation is to interpose a device to reduce one or more of these modes of heat exchange. The insulation of a building reduces the exchange of heat between the building and the external environment, and thus reduce heating needs and, where appropriate, climate-tion. This insulation must be thought according to the climatic constraints on where the building is located. Thermal insulation is the basic principle of the passive house. It traps the heat inside in winter and keeps the house cool in summer. The fight against the waste of energy through the thermal insulation of heated buildings. In Canada and in many countries, it is subject to regulations. Insulation is required in new construction and highly recommended in the renovation of buildings because it is an effective way to reduce heating costs and cooling while increasing comfort and a healthy environment. Consider a building as a container pierced with holes of different kinds:
We will have an interest in simultaneously seal and balanced every kind of hole. However over-insulation may not be profitable, both the cost of additional materials as the place of isolation. What are the sources of escape from the heat? In an uninsulated building, the average values of sources of heat loss are:
The P2000 Insulation System The P2000 Insulation System has been designed as a way to produce a single insulating expanded polystyrene/molded ( EPS ) which has the effect of dealing with current issues that plague conventional products of insulation when installed in a building envelope to:
Wall insulation Despite his reassuring thickness, a stone wall 70 cm (27-1/2") is equivalent to a thickness of 1 cm (1/4'') thick glass fiber in terms of thermal insulation The thermal conductivity of the stone that is much higher than that of air trapped between the glass fibers. An uninsulated wall is cold and will promote the condensation of water vapor, so the growth of mold. The methods of wall insulation There are three principles to achieve the thermal insulation of a wall, they differ in the intended use of the dwelling: 1. The interior insulation. This solution, the most common, is the most easy to work usually requires a rigid thermal insulation minimum 12.7 mm (1/2'') with an air barrier and vapor barrier built into one product. The interior insulation is chosen for the case of renovations (where it is impossible to intervene outside the building) and for second homes. In the latter case, the intermittent occupation does not permanently heated thermal mass walls. The inner insulation thus leaves the wall outside the isolated area and allows a rapid rise in heating suitable for temporary use. It has the advantage (which is also a disadvantage in some cases) not to introduce thermal inertia. The consideration of the internal insulation is to reduce the interior space and the presence of many thermal bridges remaining to be processed. 2. The outer insulation. This solution, often more expensive, generally requires an insulating rigid heat with a minimum thickness of 25.4 mm (1'') with an air barrier and vapor barrier steam integrated in one product. The external insulation is more suited to the isolation of primary residences. It allows conserver of the wall thermal mass inside the insulated envelope. The house, heated in continued, warms up slowly throughout its mass but cools slightly when unoccupied. The external insulation is against difficult to implement on some old buildings (apparent stone ornate facades, etc.). And almost always requires the intervention of qualified professionals. We choose the latter option if heating costs are important because the isolation obtained is high. External insulation is interesting because it does not interfere with the habitable part of the residence. Thickness, therefore its effectiveness, at least 25.4 mm (1'') easily removes thermal bridges (about floor ...) except in the foundations. A thickness of 25.4 mm (1'') of a rigid thermal insulation with its outside air barrier and vapor barrier built equivalent to 50.8 mm (2'') of the interior insulation. It is mainly used in new construction as well as complete renovation of the exterior walls of a building. 3. Insulation incorporated into the carrier material. This solution allows to isolate and build walls with thick materials which are both insulators and carriers. In the case of new construction, built-in insulation is the best way to go. These are single-wall walls as cellular concrete and other techniques bearing walls insulated. The cost is of course much higher (about 40%) than the gross structure under wood or steel. Floor Insulation Floor means the land on which it runs: concrete slab, or floor joists with crawl space. The maximum level obviously corresponds to the upper floor. The thermal insulation of the floors with no basement is important for comfort (keeping your feet warm) and energy saving in the case of a heating pad. The insulation of floors combat two causes heat loss: a) loss of heat to the unheated lower floor (basement, crawlspace, median ...); b) heat loss through thermal bridges (see this section). Because warm air tends to accumulate on the ceiling and the temperature difference between the basement and living space is less important in winter between the outside and habitable volume, the thickness of the thermal insulation required is lower (about 6 cm (2 1/3") in the floor from 10 cm to 20 cm (3" to 7" and 15/16" and 13/16" in the attic) . To isolate a floor you can: a) insulate the underside of it by setting the ceiling insulation level lower or using a stone slab with pugging insulation; b) make an insulating cap (aggregate concrete with insulation), a floating slab of high density molded/polystyrene insulation (as in slab heating). Attic Insulation As warm air rises by convection, the temperature in higher ceiling will raise so it is logical to put a thicker layer of insulation in the attic than on the walls. Attic inlets must be specially treated because there is no sealing of the walls. The insulation layer must be protected against intrusion of the weasel, closing with a wire-netting (lattice) firmly fixed space between the rafters at the plate. Several solutions are possible for the insulation under the roof, depending on the desired heat resistance and space: a) little space and little insulation between the rafters of 5.08 cm by 10.16 cm (2''by 4'') with 15.24 cm (6'') of glass wool covering the rafters - panels of molded expanded polystyrene / of high density 9.525 (3/8'') thick with an integrated reflective air and vapor barrier installed under the rafters, low cost and low efficiency in practice, factor-R 25.252 and performance of R-34.88 | ||||||||
