Question 1

One of the most challenging areas to create an effective envelope is the ____ of finished rooms above garages, where a poor air-seal can allow carbon monoxide and other poisonous gases to enter the living space.

Accepted Answer

The correct answer is the floor of finished rooms above garages. This is because the floor of these rooms serves as the ceiling of the garage below, and an effective air-seal is crucial to prevent gases from the garage, such as carbon monoxide, from entering the living space above.

Question 2

A house can never be too ____; it can only be underventilated.

Accepted Answer

The correct word to fill in the blank is "tight," as it refers to how well-sealed or energy-efficient a house is. A house that is very "tight" is well-sealed against air leaks, which can lead to it being underventilated if not properly managed.

Question 3

Multiple-point testing measures air flow at multiple pressures, usually in increments of ____ Pa.

Accepted Answer

The answer of Multiple-point testing measures air flow at multiple...

Question 4

The equation for air changes per hour natural is ACH_Natural= ____.

Accepted Answer

The correct formula for calculating air changes per hour naturally (ACH_Natural) is the total air change rate divided by the number of natural changes, hence ACH_50 / N.

Question 5

Tracer gas testing is primarily a research technique, although it is sometimes used in evaluating ____.

Accepted Answer

Tracer gas testing is often used in evaluating commercial and large multifamily buildings to assess ventilation and air leakage.

Question 6

Match each statement with item below
-Thermal or sound insulation material, made of fiberglass, mineral wool, or cotton, which comes in varying widths and thicknesses to conform to standard framing of walls and joists.

Accepted Answer

Batt insulation is specifically designed to fit into standard framing of walls and joists, and it can be made from materials like fiberglass, mineral wool, or cotton.

Question 7

Match each statement with item below
-The material itself does not allow air to pass through it.

Accepted Answer

Air impermeable materials are designed to not allow air to pass through them, making them effective barriers against air infiltration and exfiltration in buildings.

Question 8

Match each statement with item below
-Typically a plastic or spun-fiber polyethylene textile material.

Accepted Answer

Housewrap is typically made from plastic or spun-fiber polyethylene, designed to be permeable to water vapor but impermeable to bulk water, making it an effective weather-resistant barrier on buildings.

Question 9

Match each statement with item below
-Made primarily of recycled newsprint, chemically treated to resist fire, mold, and pests.

Accepted Answer

Cellulose insulation is made primarily of recycled newsprint that is chemically treated to resist fire, mold, and pests, making it an eco-friendly option for insulating homes.

Question 10

Match each statement with item below
-In wood frame structures, it must be kept dry to both maintain its R-value and to protect the building from mold and rot.

Accepted Answer

Cavity insulation must be kept dry to maintain its R-value and protect the building from mold and rot.

Question 11

Match each statement with item below
-Eliminates most or all of the framing members that create thermal bridges and reduce the amount of insulation in wall, ceiling, or floor structure.

Accepted Answer

Integrated insulation is designed to eliminate or significantly reduce thermal bridges by incorporating insulation throughout the structure, including areas that traditionally have less insulation due to framing members. This approach enhances the overall thermal performance of the building envelope.

Quiz 4: Insulation and Air Sealing

One of the most challenging areas to create an effective envelope is the ____ of finished rooms above garages, where a poor air-seal can allow carbon monoxide and other poisonous gases to enter the living space.

A house can never be too ____; it can only be underventilated.

Multiple-point testing measures air flow at multiple pressures, usually in increments of ____ Pa.

The equation for air changes per hour natural is ACHNatural = ____.

Tracer gas testing is primarily a research technique, although it is sometimes used in evaluating ____.

Match each statement with item below -Thermal or sound insulation material, made of fiberglass, mineral wool, or cotton, which comes in varying widths and thicknesses to conform to standard framing of walls and joists.

Match each statement with item below -The material itself does not allow air to pass through it.

Match each statement with item below -Typically a plastic or spun-fiber polyethylene textile material.

Match each statement with item below -Made primarily of recycled newsprint, chemically treated to resist fire, mold, and pests.

Match each statement with item below -In wood frame structures, it must be kept dry to both maintain its R-value and to protect the building from mold and rot.

Match each statement with item below -Eliminates most or all of the framing members that create thermal bridges and reduce the amount of insulation in wall, ceiling, or floor structure.

The equation for air changes per hour natural is ACH_Natural= ____.