Our double skin log cabins are constructed from the highest quality timber with a 44mm twin wall structure and a 50mm cavity between the two walls. The logs interlock at the corners, giving extra sturdiness to the structure. The benefit of double skin means that these log cabins are easily insulated between the log walls, we recommend using a Rockwool product or similar. The extra levels of insulation makes them suitable for year round use providing extra warmth and sound insulation. We highly recommend upgrading the standard external door and window units to the Premium fit to reduce the potential for condensation build up on the glass. Premium fit doors and windows provide much higher levels of insulation on a par with that achieved by the double wall construction.