Insulation
Spray Polyurethane Foam on the Walls of a New Build
The bare outside walls of a house under construction were sprayed with polyurethane foam in one continuous insulating layer, with render going on top afterwards.
Step by step
1. Bare walls
A house under construction, with its outside walls still grey and unprotected.
2. The scaffolding
With the scaffolding in place, the whole height of the wall can be sprayed.
3. The polyurethane foam
Spray polyurethane foam goes over the whole surface and forms one continuous cream layer, carried around the openings as well.
4. Ready for render
The whole face is insulated, with no joints or gaps. Render then goes over the foam to protect it and give the walls their final finish.