Retrofit Metal Roof-Over · Occupied industrial unit
Retrofit Metal Roof-Over
An aging cement-sheet roof was covered with a new insulated steel roof on a spacer system, avoiding the cost and disruption of stripping the old roof while the business kept working below.
Project detail
The owner of an industrial unit needed a long-term answer to an aging cement-sheet roof that had reached the end of its service life. Stripping the roof and replacing it was outside the budget, and the business needed to keep operating throughout the work.
Project detail
TCR proposed a roof-over, also called overcladding: a new metal roof built on top of the existing one. The old sheets stay in place, sealed beneath the new roof, so there is no strip-out, no open roof over the business and far less waste. The aims were to:
Project detail
New profiled steel roof sheets were installed over the existing roof on a spacer system. Support rails carry the new roof at a set height above the old one, and the space between holds new insulation. New flashings were made for the ridge, edges and other details. The sheeting, fasteners, support rails, flashings and insulation were selected to work together as one system, giving a watertight, low-maintenance roof with better insulation values than the old one.
See roof overlays and roof-overs for when a new roof can be built over an existing one.
Project detail
A narrow side road ran along the building, limiting where scaffolding could stand and how materials could be delivered. TCR worked with the scaffolding contractor on an access design that fit the space. The business stayed open throughout, so the work was phased to keep disruption to its daily operations low, with strict safety controls on site.
Project detail
The roof-over took six weeks. The photographs show the roof before the work, with its weathered sheets, and the finished building.
More from this system
Discuss the property and project requirements
Share the address, building use, current system, drawings, photographs, access constraints, and target schedule so the appropriate inspection, estimating, and preconstruction route can be defined.
Our business grew through roof and cladding refurbishment in the UK. That experience shapes the work we now offer from our Texas office.
We investigate the roof problem and explain what can be repaired, restored or replaced, so you can decide how to invest in the building.
We can coordinate roof, insulation, wall panel and drainage work, including the connections where separate repairs can leave problems behind.
We agree access, work areas and protection with your site team, including any restrictions needed while the roof is opened.
Roofing and cladding systems
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