Expanded Polystyrene (EPS) is a rigid, lightweight, and durable foam insulation sheet which offers homeowners a quick and simple solution for retrofitting existing floor systems. EPS underfloor insulation involves the installation of EPS foam sheets beneath the flooring system to create a thermal barrier. This barrier helps maintain a more constant indoor air temperature by preventing heat loss during the winter and minimising heat gain during the summer.
Benefits of Foam Insulation Sheets
Thermal Efficiency
In winter, underfloor foam insulation sheets significantly reduce heat loss through the floor, keeping indoor spaces warmer. This contributes to a more comfortable living environment and reduces the need for heating.
In summer, underfloor insulation sheets help keep the air temperature cooler inside, reducing the load on air conditioning systems and maintaining a comfortable indoor temperature.
Energy Savings and Environmental Impacts
By improving the thermal performance of the building envelope, EPS insulation sheets reduce the need for heating and cooling, leading to lower energy consumption. This translates to cost savings on energy bills. Lower energy consumption means reduced greenhouse gas emissions, contributing to a more sustainable and eco-friendly home.
Ease of Installation of Sheets
Lightweight and Easy to Handle
EPS insulation sheets are lightweight and easy to cut, making them simple to install. The external edges of the EPS sheets are concertina cut so they can compress and fit snugly between timber floor joists. This reduces labour costs and installation time.
Versatility
Standard EPS insulation sheets and panels are available in a range of widths to suit most floor joists from 410 mm, 470 mm & 560 mm. Custom widths are also available for special orders.
Moisture Resistant
Foam insulation sheets are inherently resistant to water absorption, preventing moisture-related issues such as mold growth and structural damage. This makes it an excellent choice for underfloor applications where moisture may be a concern.
Installation Guidelines for Insulation Sheets
Site Preparation:
- Ensure the floor area is clean, dry and free of debris.
- Perform a site assessment to determine joists measurements for the required insulation width.
Cutting and Fitting:
- Measure and cut EPS sheets to fit the specific dimensions of the floor area.
- Lay the EPS sheets snugly together, ensuring no gaps between them.
Securing the Insulation:
- Use appropriate mechanical fixings where necessary to secure the EPS sheets in place.
- Seal any gaps or joints to prevent thermal bridging.
Vapor Barrier (if required):
- Install a vapor barrier over the EPS insulation to enhance moisture resistance.
Safety Information
- Foam insulation sheets are non-toxic and safe to handle.
- Use appropriate personal protective equipment (PPE) such as gloves and masks during installation.
- Follow local building codes and regulations regarding fire safety and insulation installation.
Foam insulation sheets offer a multitude of benefits that enhance both the energy efficiency and comfort of buildings. Its excellent thermal performance, cost-effectiveness, durability, and ease of installation make it an ideal choice for a wide range of applications. By investing in foam insulation sheets, homeowners and builders can achieve significant energy savings, improved indoor comfort, and a reduced environmental footprint.
Technical Specifications
| Material: | Expanded Polystyrene (EPS) |
| Density: | 13.5-28 kg/m³ |
| Thermal Conductivity: | 0.033 – 0.038 W/mK |
| Compressive Strength: | 75 – 165 kPa |
| Water Absorption: | < 2% (by volume) |
| Fire Resistance: | Fire retardant |
| Dimensional Stability: | Excellent |
| Environmental Impact: | 100% recyclable |
Product Range
|
Product Code |
Thickness (mm) |
Dimensions (mm) |
R-Value |
|
EPS-410 |
60 | 1200 x 410 | 1.5 m²K/W |
|
EPS-470 |
60 |
1200 x 470 |
1.5 m²K/W |
|
EPS-560 |
60 |
1200 x 560 |
1.5 m²K/W |
