Imperial College London


Faculty of EngineeringDyson School of Design Engineering

Head of the School of Design Engineering



+44 (0)20 7594 7049p.childs Website CV




Studio 1, 10 Princes Gardens10-12 Prince's GardensSouth Kensington Campus






BibTex format

author = {Childs, PRN and Holloway, M and Julia, M},
title = {A robot for spray applied insulation in underfloor voids},
url = {},

RIS format (EndNote, RefMan)

AB - This paper focuses on the application of robotics in a new field for applying surface treatments in building voids and thedevelopment of the architecture of the robotic vehicle for use in this application. The nature of the application means thatthe robotic vehicle must be capable of accessing voids through small openings and this has led to a deployable architecturefor the vehicle which can be fed through an opening and then reconfigures its form to enable practical operation. A typicalapplication for the robot is to apply thermal insulation to the underside of wooden or concrete floors in buildings. Theterrain is varied ranging from sand to impacted dusty hard core, can be strewn with builders’ debris such as bricks andtimber, and is interspersed with retainer walls that support the floor above. Within this environment the robot needs to beable to navigate and deploy a spray applied insulation fed by a hose assembly. This paper describes the robot architectureand its development with particular focus on deployable features enabling access to confined spaces, the traction systemused to negotiate diverse surfaces while pulling the umbilical hose assembly, the sensor array and how it is used to controlthe spray patterns. The resulting robots have been commercially developed, and are successfully spraying thermal insulationin a wide range of building applications.
AU - Childs,PRN
AU - Holloway,M
AU - Julia,M
TI - A robot for spray applied insulation in underfloor voids
UR -
ER -