
Purpose of House wrap
House wrap serves as a dual-purpose weather barrier. It not only minimizes the flow of air in and out of a house, but also stops liquid water and acts as a drainage plane. The unique characteristic of house wrap is that it allows water vapor to pass through it while blocking liquid water. This permits moist humid air to escape from the inside of the home, while preventing outside liquid water (rain) from entering the home.
When Should House wrap Be Used?
Almost all exterior finishes allow at least some water penetration. If this water continually soaks the wall sheathing and framing members, problems such as dry rot and mold growth could occur. House wrap stops water that passes through the siding and allows it to drain away from the structural members. In humid climates with heavy rainfall, house wrap is recommended to prevent water damage to the framing. Use in dryer climates may not be as critical, since materials are allowed to adequately dry, although house wrap also prevents air movement through the wall cavity, which is beneficial for insulating purposes.
Why Insulate Your House?
Heating and cooling account for 50 to 70% of the energy used in the average American home. Inadequate insulation and air leakage are leading causes of energy waste in most homes.
Insulation:
What Is an R-Value?
Insulation is rated in terms of thermal resistance, called R-value, which indicates the resistance to heat flow. The higher the R-value, the greater the insulating effectiveness. The R-value of thermal insulation depends on the type of material, its thickness, and its density. In calculating the R-value of a multi-layered installation, the R-values of the individual layers are added.
We guarantee reliable and affordable house insulation and house wrap installation.
We are serving Chicago, Naperville, Westmont, Chicago Ridge, Hoffman Estates, Carol Stream, Elmhurst, Clarendon Hills, River Forest, Lockport areas and their surroundings.
Call now (630) 854-9358 or email for consultation.