External Wall Insulation Types

When you are insulating two by four 2x4 and two by six 2x6 framed exterior walls and want to use fiberglass insulation what thickness is best the question becomes all more critical because of the permanent nature of wall assemblies and wall insulation.

External wall insulation types.

The effect of external insulation is to warm the wall and this in turn moves the dew point outwards towards the colder external air thereby reducing the risk of condensation appearing on the internal surface. Spray foam wall insulation. External wall insulation is fast becoming one of the most popular ways to insulate a home. Gypsum exterior wall sheathing.

Some spray foam offers twice the r value of traditional batt insulation making it a useful option for insulating shallow spaces. Gypsum sheathing is a type of sheetrock meant to be used in exterior applications. It s perfect for solid wall buildings where cavity insulation is impossible and internal insulation would mean sacrificing too much space. Spray foam is one of the more unique wall insulation types.

It s also a chance to update the look of your home with options ranging from brick effect finishes to coloured. Once the insulation is in the wall and sealed up with drywall it is not easy to change out. It may be combined with fiberglass or it may simply be made of gypsum and given a waterproof exterior finish. The type of insulation you need depends on which type is currently installed and the required r value.

Installing this type of insulation is an inexpensive and diy friendly project since the materials are designed to fit into the standard width between wall studs attic rafters and floor joists. In most cases it is slightly inside the external surface. The thickness of thermal insulation is dependent on whatever type is required in order to create. Dry cladding offers a wide range of finishes such as timber panels stone or clay tiles brick slips or aluminum panels.

It is more effective to install insulation over the surface of the blocks either on the exterior or interior of the foundation walls. Adding insulation to a wall will change the place where the dew point occurs. It starts out as a liquid during the installation process and hardens into thick foam after a few minutes. An external wall insulation system or ewis is a thermally insulated protective decorative exterior cladding procedure involving the use of expanded polystyrene mineral wool polyurethane foam or phenolic foam topped off with a reinforced cement based mineral or synthetic finish and plaster.

The most common insulation materials are fiberglass cellulose and foam. External wall solutions comprise of an insulation layer fixed to the existing wall with a protective render or decorative finish.