Localistation
Coventry
Date
April 2022
Duration
5 days

Wall insulation - why is it better from the outside, not from the inside?

Proper insulation of a building requires taking into account two physical phenomena - energy transport, i.e. heat, and water vapor diffusion in sandwich partitions. Insulating the walls from the inside causes the wall freezing zone, and thus also the water vapor condensation zone, to shift towards the inside, which may cause the partition to become damp and reduce its durability.

With traditional insulation, these phenomena do not occur from the outside. The wall is always located in the warm zone (outside the frost zone) and, importantly, it heats up with the room. It has the same temperature as the air inside.

It stabilizes the operation of the heating system due to its high thermal inertia and has a positive effect on the interior microclimate and thermal comfort due to the humidity capacity. There is no condensation of water vapor in the wall and there are no large differences in temperature between summer and winter, which ensures the stability of the structure. Therefore, whenever possible, it is recommended to lay insulation on the outer side of the wall.




Similar projects
Private property in Croydon
Croydon
-
July 2022
Private property in Croydon
Render 1,5 Silicate, silicone coloured white topcoat - 167sq.m ‍
Read more about this project
Private property Brafield-on-the-Green-NN7 1BP
Brafield On The Green
-
January 2025
Private property Brafield-on-the-Green-NN7 1BP
Successful rendering of external wall, colour: k11670
Read more about this project
Private property in Worcester WR7 4HF
Worcester
-
August 2023
Private property in Worcester WR7 4HF
Read more about this project
Private property in Nottingham NG8 1EG
Nottingham
-
March 2025
Private property in Nottingham NG8 1EG
Top coat white
Read more about this project
Get a free quote