What XPS Insulation Is
XPS — extruded polystyrene — is a rigid insulation board with a closed-cell structure. That structure does two things well: it resists heat transfer, and unlike many soft insulation materials, it does not absorb water, so it keeps performing in our climate. IBS installs INSUGREEN certified XPS boards on roofs and walls.
Where It Is Installed
On most homes, the boards are laid over the roof slab and protected with a suitable finish, cutting the heat path before it reaches the rooms below. Walls that take direct afternoon sun — typically west-facing — can also benefit. In new construction, insulation can be planned into the roof build-up from the start.
What Results to Expect
Properly installed roof insulation reduces the heat entering through the roof, which lowers indoor temperatures and the cooling demand on your AC. The exact saving depends on the building, the insulation thickness and the quality of installation — which is why we assess your roof first and explain what is realistic for your property, rather than promising a fixed number.
Insulation and Waterproofing Together
A roof that leaks should have its waterproofing addressed alongside insulation; trapping moisture under new boards helps no one. On many projects the two are combined: waterproof the slab properly, then insulate — one visit, one system, and a roof that is both dry and cool.
Is your home a good candidate?
Top-floor bedrooms that stay hot into the night, AC bills that spike every summer, and a roof in reasonable condition are the classic signs. A free survey confirms the roof's condition and the right board thickness for your building.
