External Wall Insulation Types

Foam board or insulating boards are rigid panels of insulation that have a high r value.

External wall insulation types.

External wall insulation is fast becoming one of the most popular ways to insulate a home. It is more effective to install insulation over the surface of the blocks either on the exterior or interior of the foundation walls. It s perfect for solid wall buildings where cavity insulation is impossible and internal insulation would mean sacrificing too much space. 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. In most cases it is slightly inside the external surface. Placing insulation on the exterior has the added advantage of containing the thermal mass of the blocks within the conditioned space which can moderate indoor temperatures. Gypsum sheathing is a type of sheetrock meant to be used in exterior applications.

Gypsum exterior wall sheathing. The thickness of thermal insulation is dependent on whatever type is required in order to create. Spray foam wall insulation. 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.

It s also a chance to update the look of your home with options ranging from brick effect finishes to coloured. Adding insulation to a wall will change the place where the dew point occurs. 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. Spray foam is one of the more unique wall insulation types.

Best for floors foundation and basement walls interior and exterior wall sheathing and low sloped ceilings. Some spray foam offers twice the r value of traditional batt insulation making it a useful option for insulating shallow spaces. Because they have a high r value and can be used nearly anywhere in your home foam boards are one of the most common types of insulation. While not as popular as other types of sheathing this material does have some particular uses that keep it in business.

External wall solutions comprise of an insulation layer fixed to the existing wall with a protective render or decorative finish. 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.