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The sturdy construction of garden log cabins has been a favourite among UK homeowners for years. The thicker the cladding used, the better the insulation. But how well are log cabins insulated to ensure year-round comfort and energy efficiency?
There are several factors at play, including these three key points:
- Log cabins’ natural insulation
- Additional insulation options
- Maintenance
Keep reading for some answers!
Are Log Cabins Insulated?
By default, garden log cabins offer partial insulation just from the wooden construction alone. Wood is a natural insulator that has thermal mass, meaning it can absorb, store and release heat.
The thicker the cladding, the better the insulation. For example, 44mm log cabins are often more effective at insulating, as the extra thickness retains more heat inside the cabin than their thinner counterparts. Discover more about this in our log cabin thickness guide.
However, timber alone won’t offer the same performance as modern insulated materials. Over time, gaps between the logs can also develop due to expansion and contraction, which compromises heat retention.
There are 2 ways a log cabin can be given additional insulation: double glazed windows and doors, and added insulation padding on the walls, roof and floor.
Without added insulation applied to the structure, garden log cabins are not as insulated as buildings made from structural insulated panels (SIP).
How are log cabins insulated?
One of the simplest ways to enhance insulation is by installing double-glazed doors and windows. These provide a thermal barrier, reducing heat loss and preventing draughts — especially important during colder months.
To insulate a log cabin for all seasons, consider adding insulation material under the floor, against the walls, and on the roof. Common materials include:
- Foam insulation boards
- EcoFoil
- Fibreglass
- Expanded polystyrene (EPS)
On the walls and ceiling, these materials are usually kept in place by wooden framing and with a thin wooden panel or plasterboard as a new internal wall that you can decorate. Under the floors, the material would need to sit atop the floor bearers.
That added insulation helps improve the log cabin’s overall energy efficiency. While the timber does offer some insulation, the added layers fill in any gaps and make the walls thicker. This stops heat from escaping in winter or making things too hot in summer.
Note that modifying your log cabin with insulation is undertaken at your own risk.
Retain Log Cabin Heat with Maintenance
There are also ways to increase insulation by filling in gaps.
Chinking is the process of filling the gaps between logs using a mortar or a special chinking compound. It basically seals out drafts and stops moisture from getting in. Caulking, in contrast, is used for smaller gaps and cracks. It uses a sealant to create a tighter, more insulated seal.
Regular upkeep goes a long way in avoiding damage or issues from creeping in over time. It’s especially worth checking things over after heavy rain, snow, or high winds. Look for any gaps, cracks, or worn sealant around windows or doors, as they can let in drafts. If your cabin has floor insulation, make sure it’s still in place and hasn’t shifted or worn down. Any spots you find that need attention can be resealed or replaced to keep the warmth inside.
Apply wood treatments as recommended to keep the timber’s insulation properties in good shape. For more tips, have a look at this guide: Log Cabin Maintenance Checklist
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Keeping your log cabin warm is easier with good insulation, and regular maintenance helps prevent it from losing effectiveness. It’ll stay cosy, and you’ll save on heating too!
Skip the hassle and go for one of our insulated log cabins. For more tips, check out: Insulated Log Cabin Advantages: Why You Need One
For more help choosing a log cabin, check out our log cabin buying guide.
