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Technical Outline of Insulation Companies in the Bay Area

Insulation methods include external insulation and internal insulation. If the heat insulation performance is excellent, the cooling and heating will be effective, and you will reduce the utility bill. If you have good insulation, the room temperature will not be affected by the outside temperature, so you can expect to spend cool summers anchor and warm winters. 

At the extreme, I think that you can use any kind of heat insulating material as long as it is of a certain quality. Suppose the appropriate thickness and appropriate construction can be performed. In that case, you can exhibit the expected heat insulation performance for an extended period. If you can eliminate the risk of dew condensation inside the wall, the rest depends on the ease of construction and cost. 

In that case, you just have to hire well-reputed Insulation companies like Attic Clean 360, who could provide quality services. I don’t think it can be said that this insulation is good and this insulation is terrible, and it just depends on Insulation companies.

What is a highly insulated and highly airtight house?

A highly airtight house refers to a house built with high-precision building materials, moisture-proof sheets, heat-insulating materials, airtight tape, etc., so as not to create gaps as much as possible.

On the other hand, a highly insulated house refers to a home with improved heat insulating performance using heat insulating material between the outer wall and the inner wall and adopting windows with high heat-insulating properties.

Highly airtight and highly insulated houses have few gaps. They are highly airtight, so it is said that the entire house becomes a closed and heat-retaining space with good cooling and heating efficiency and reduced utility costs.

What is the external insulation method?

It is a construction method in which a heat-insulating material is placed outside the skeleton (building structure). The entire building is wrapped with heat-insulating material. Insulation is installed between the pillar and the wall. 

This method is characterized by high airtightness and does not let the indoor temperature escape to the outside. Since the temperature variance between the inside and outside of the building is slight, condensation is less likely to occur even in winter. As a result, deterioration of the house due to mold and rust can be suppressed, and there is also the advantage that the home will last longer.

What is the Insulation between axes of walls and roofs?

The walls and roof of a two-by-six structure are composed of structural plywood and columns (studs) on the outer circumference. In-situ urethane foam insulation is sprayed into the panel. 

Besides, experimental results show that the strength of the entire panel is increased, although it is not related to the heat insulation “Performance verification / shear test.” This fills the small gaps in the structural frame, which also has the effect of improving airtightness.

Introducing the risk verification of internal condensation

If the heat insulating material is 100 times urethane foam (open cell) or fiber-based heat insulating material (glass wool, rock wool, cellulose fiber, etc.), a vapor barrier (moisture-proof sheet) is provided inside the heat insulating material to prevent moisture from entering. 

Although it is necessary, 30 times urethane foam (closed cell) has high moisture permeation resistance, and moisture intrusion is minimal. At this time, be careful not to create a gap. If there is a gap, there will be a temperature difference, and it will cause condensation. Cut the glass wool with scissors and place it so that it wraps around the obstacle.

However, suppose a material that stops moisture outside the heat insulating material enters. In that case, internal dew condensation may occur due to the wall structure, so we conducted a simulation using “WUFI (Unsteady Heat and Moisture Simultaneous Movement Analysis Program)” and performed internal dew condensation. We have confirmed that there is no risk.