Underfloor Polystyrene Insulation: Expol™ by Foamex

Compared to external walls, more energy is lost through a homes floor and ceilings combined, as the hot air rises from the ground to the ceiling level. In addition, the floor is often in contact with the coldest air from the outside environment, leading to an estimated 15% loss of internal heating or cooling.

To prevent heat loss and achieve maximum heat retention, Foamex created Expol™ underfloor polystyrene insulation.

What is Expol™ Underfloor Polystyrene Insulation?

Expol™ underfloor polystyrene insulation is the material of choice for both newly built and retrofit insulation projects. It provides an excellent alternative to traditional insulating materials which surpass the specifications of the National Construction Code Six Star energy-efficiency rating. Expol™ is designed to fit snugly between floor joists to protect homes from extreme outside temperatures.

The underfloor polystyrene insulation sheets are made of rigid expanded polystyrene derived from natural gas and petroleum by-products. The unique physical structure of expanded polystyrene is known for its flexibility, versatility and excellent compressive strengths. Polystyrene is also resistant to water infiltration, therefore preventing premature degradation and inhibiting mould proliferation and bacterial growth.

All Expol™ panels are manufactured in four standard widths (360mm, 410mm, 470mm and 560mm) and measures 1.2 metres long with a standard thickness of 60mm, to easily fit between the most standard joists. Both sides of a panel are cut concertina-style to allow compression of up to 20mm, making it easy to install and ensure a snug fit between floor joists.

What are the Benefits of Using Expol™ Underfloor Polystyrene Insulation?

Here are the benefits of Expol™ underfloor polystyrene insulation:

1. Expol™ Eliminates Drafts
Almost every house has a draft regardless if a home is newly built or centuries old. Drafts occur whenever there are gaps in construction that are left unsealed on the outside. Cold or warm air enters the gaps if they are left uninsulated, leading to increased energy consumption. Aside from the surge of electricity costs, drafts enable moisture to seep in and critters crawling inside a home.

The snug fit of Expol™ underfloor polystyrene insulation panels prevents drafts from entering the gaps between timber floors and the ground. It is ideal to use for homes that are raised above the ground, or the ones with crawl spaces.

2. Expol™ Maximises Heat Retention and Prevents Heat Loss
Aside from timber's low insulation properties, timber floors typically have larger spaces of cold air between the underside of the floor and the ground. While carpeting and underlay helps in insulation, installing underfloor polystyrene insulation improves heat retention by creating a vapour barrier and reducing moisture buildup.

A typical home loses an estimated 10% heating through the floor. Expol™ underfloor polystyrene insulation prevents heat loss by impeding temperature change, which means less energy is needed to maintain ambient room temperature. Expol™ not only warms your feet but it also helps save up to 12% on heating costs.

3. Expol™ Creates Vapor Barrier
The low insulating property of timber makes it more vulnerable to moisture. The closed cellular structure of expanded polystyrene makes it resistant to water infiltration and moisture build up which could lead to reduced ineffective insulation and early degradation.

Expol™ underfloor polystyrene insulation is not only geared towards energy efficiency and conservation of resources, but it also guarantees a high insulating performance that is easy to handle and install.

Learn more about the energy-efficient and money-saving Expol™ underfloor polystyrene insulation.

Contact Foamex today!