Can you insulate a concrete garage?

Precast Garages Scotland

Lining out and insulating concrete garages in southern Scotland makes perfect sense, considering the climate! Here, we offer a couple of tips.

We’ve been building concrete garages throughout southern Scotland, from Glasgow to Edinburgh, between and beyond, for many years. We’re experts on all matters related to prefabricated sectional outbuildings. So, how to insulate a concrete garage? To start with, securing timber battens to the panels serves as a good basis for the subsequent steps. While drilling into concrete panels may seem like the obvious choice, we advise against it. Instead, opt for lining clips that securely attach to the existing panel bolts, offering a stable base for the battens without compromising the integrity of the panels.

Insulation is a crucial consideration to ensure optimal temperature regulation in concrete garages in Scotland, and to minimise condensation. Fiberglass insulation, similar to what’s commonly used in lofts, or coated foam sheets are the primary options available. When using fiberglass insulation, incorporating a membrane between the insulation and the outer wall is essential to prevent condensation formation by isolating warm, moist air from the cold concrete. However, this step isn’t necessary with foam insulation, as the coating on the sheet acts as a barrier.

When it comes to fixing insulation to the concrete panels, opting for insulated sheets of 25mm or 50mm thickness enhances the insulating properties, with thicker sheets providing better insulation. For those lining and insulating concrete garages in southern Scotland, the requisite materials are readily available from local hardware stores.

Once insulation is in place, the focus shifts to lining the building. Plywood sheets, preferably at least 12mm thick, are a popular choice, for their sturdiness and moisture-repelling properties. Before fixing the plywood, it’s advisable to install any necessary electrical cabling, ensuring a neat finish with wires neatly tucked behind the boards.

Fixing the boards onto the timber battens is straightforward, typically done with nails or screws. A coat of paint not only seals the wood but also adds another layer of moisture protection, prolonging the lifespan of the lining.

While we’ve primarily discussed lining the walls of concrete garages, similar principles apply to insulating and lining the floor and roof. Whether it’s a flat roof or pitched roof garage, following these tips can enhance insulation efficiency and structural integrity.

Precast Garages Scotland builds concrete garages and other outbuildings from Glasgow to Edinburgh and beyond. For details of our comprehensive range and advice on garage upgrades, call us on 0800 038 5825 or 01563 590010 today, or write to us at