This is a modified "Bath" log cabin - the windows and doors have been changed a bit as well as the internal partition being moved backwards to give a larger main front room.
This is a true Twin Skin insulated log cabin where achieve much higher insulation values compared with other "insulated" log cabins that other companies offer (see more info here - [ Ссылка ]
The table below shows the U values that are achieved with our various cabins -
Hortons Single Skin Log Cabins
Cabin specifications U value of building
28mm log cabin, no insulation 2.56
45mm log cabin, no insulation 2.28
28mm log cabin, with roof insulation - no floor insulation 1.78
45mm log cabin, with roof insulation - no floor insulation 1.48
45mm log cabin with roof and floor insulation 0.84
70mm log cabin with roof and floor insulation 0.81
Hortons Twin Skin Log Cabins
35+35mm Twin Skin log cabin with fibreglass insulation kit 0.60
35+35mm Twin Skin log cabin with Celotex insulation kit 0.45
45+45mm Twin Skin log cabin with Celotex insulation kit 0.45
45+45mm Twin Skin log cabin with UK Building Regs Celotex insulation kit 0.23
70+70mm Twin Skin log cabin with UK Building Regs Celotex insulation kit 0.22
For comparison purposes, this is a table showing the U values required by UK building regulations over the years, so you can see how the insulation of our cabins compare with houses built through the decades -
Year of Regs- 1965 1970 1980 1990 2000 2010 2016
U value- 1.95 1.81 1.59 0.99 0.63 0.37 0.25
As you can see, our Twin Skin cabins are far superior to any single skin cabin (contrary to what a lot of cabin companies might say!....probably because they are unable to sell Twin Skin cabins at a rough guess – it's all just typical sales talk that out tables above prove otherwise).
Walls
A log cabin with a 70mm wall has a U-Value of 1.41W/m2K . Some companies “boast” of getting theirs down to 0.69 W/m2K.....not very good then!...Even our thinnest 28+28mm Twin Skin is way better than that.
Some companies also say that it is not possible to get a cabin to meet current UK building Regulations requirements for a habitable house – wrong! See the table above, we easily meet this criteria.
People assume that cabins made from really big round logs are far better insulated – wrong again! In fact, to get the level of heat retention from solid timber to comply with UK building regs, it would need to be just over 600mm thick! Not very practical then. Especially when you consider that round logs are quoted at their thickest point but for calculations purposes, you have to take the average thickness of the log (it is usually about 40% thinner at it's thinnest point).
Roof
This is the most important element of an insulated cabin (given that heat rises). Nearly all other companies just add a 25mm, 40mm, or sometimes 50mm sheet of Celotex / Kingspan / Exotherm / etc. on top of the existing cabin roof. This obviously greatly improves it's performance. However we chose a totally different route with our insulated roofs – we use the whole depth of the purlins to insulate between (our purlins range from 140mm deep up to 200mm deep, depending on the building and the spans involved) – you can see how superior this is method is. We achieve a U value of between 0.18 to 0.22, again far superior to commonly achieved U values by other cabin companies (usually around 0.65 W/m2K).
Floors
Floors are the second most important part of a cabin to insulate – a cold floor leads to a cold room.
As with roofs, other cabin companies use thin insulation (and shout about how good it is!). Our standard Celotex insulated floor achieves a U value of 0.39 and our building regs floor achieves .21 W/m2K
As you can see from the above facts and figures – a cabin that is advertised as “insulated” can mean a variety of things and some are more equal than others! Hortons cabins are designed for purpose, not for headlines or “hidden” penny pinching.
You can see all options and prices for the Bath 4m x 7m log cabin here - [ Ссылка ]
