External Wall Insulation Types

External wall insulation is fast becoming one of the most popular ways to insulate a home.

External wall insulation types.

It s also a chance to update the look of your home with options ranging from brick effect finishes to coloured. In most cases it is slightly inside the external surface. Gypsum sheathing is a type of sheetrock meant to be used in exterior applications. 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.

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

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. It starts out as a liquid during the installation process and hardens into thick foam after a few minutes. Once the insulation is in the wall and sealed up with drywall it is not easy to change out. It is more effective to install insulation over the surface of the blocks either on the exterior or interior of the foundation walls.

While not as popular as other types of sheathing this material does have some particular uses that keep it in business. Adding insulation to a wall will change the place where the dew point occurs. Spray foam is one of the more unique wall insulation types. It may be combined with fiberglass or it may simply be made of gypsum and given a waterproof exterior finish.

Best for floors foundation and basement walls interior and exterior wall sheathing and low sloped ceilings. Gypsum exterior wall sheathing. It s perfect for solid wall buildings where cavity insulation is impossible and internal insulation would mean sacrificing too much space. 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.

Some spray foam offers twice the r value of traditional batt insulation making it a useful option for insulating shallow spaces. Dry cladding offers a wide range of finishes such as timber panels stone or clay tiles brick slips or aluminum panels.