Welcome to Sydney Insulation – Your Underfloor Insulation Specialists

Sydney Insulation, leaders in underfloor insulation, uses premium quality insulating materials like

• Knauf Earthwool underfloor batts,

• underfloor insulation panels,

• polyester rolls, and

• closed-cell polyurethane spray foam.

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Our main focus is to retrofit existing Sydney homes, enhancing the r value, being warm in winter,  cool in summer. This is done by improving the energy efficiency under,

• suspended floor,

• floorboards,

• under joist structures,

• homes built on pylons and raised footings,

• having accessible crawl spaces .

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Whether your home features a concrete slab, concrete floor, or timber floors joists, our dedicated team is committed to delivering bespoke solutions tailored to maximising the r value of your home. As long as the crawl space is;

•  greater the 600mm and

• we have underfloor access throughout the house.

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As we have insulated the underfloor of over 10,000 Aussie homes, we understand the ins and outs of underfloor insulation, and are up-to-date with the latest industry products for underfloor insulation. This knowledge and expertise enable us to provide unparalleled service quality, ensuring the sub floor of your home is insulated to the highest standard.

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We have boiled it down to two type of underfloor thermal insulation, products and applications.

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1. Insulation Batts and

2. Closed Cell Polyurethane Spray Foam.

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Here we will discuss the different concrete floor and timber floor insulation types, the pros and cons, and how they are installed. This should give you a good guide in deciding how you want proceed with underfloor insulation.

The Importance of Underfloor Insulation

Similar to wall insulation or ceiling insulation, underfloor insulation acts as an effective barrier against heat gain and heat loss, accounting for about 25-35% of thermal and heat loss out of your home. Being well insulated, leads to significant cost effective energy savings, lowering your energy bills and reducing your carbon footprint, if done right.

Suspended timber floors, when not properly insulated, can indeed contribute to heating and cooling problems in a number of ways:

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1. Heat Loss and Gain.

Poor underfloor insulation allows for significant heat transfer. During the winter, heat from inside the building can escape through the floor, while in the summer, heat from outside the building can enter the building through the timber floor.

2. Draughts:

Gaps and cracks in the floorboards let in cold air, creating uncomfortable draughts. These draughts can lower the overall temperature of a room, leading heating/cooling systems working harder to maintain consistent temperature. The primary fix that closed cell foam provides is reducing this air infiltration, and acting as a thermal break.

3. Moisture Issues:

Suspended floors, particularly in older buildings, can also contribute to cold winter moisture related problems to underfloors and in cavity walls. This moisture can make cool air in the home feel colder and can lead to damp, mold, and rot issues you can't see that can affect the building's ground structure and indoor air quality.

4. Vermin Deterrent:

Uninsulated timber floors also can provide ground entry points and nesting areas for pests like rodents and insects. The gaps in the structure timber floor that these pests exploit can be sealed by insulating bulk insulation.

5. Increased Energy Costs:

Non-insulated walls and suspended floors can lead to increased energy usage as heating and cooling systems have to work harder to maintain a comfortable indoor environment.