Roof covering repair
Repair and restoration of roof coverings
What the service includes
We repair and restore roof coverings on industrial and commercial buildings, with a guarantee of watertightness.
The location of a leak on the ceiling generally does not coincide with the location of the roof defect. Works therefore begin with an inspection: we identify the source — upstands, outlets, seams, a damaged vapour control layer — and assess the extent of moisture in the insulation and the deck. On this basis we determine whether a local repair is sufficient or a section of the covering needs to be replaced.
Based on the inspection results, we select materials and a method suited to the specific roof and its operating conditions. This is followed by restoration of the waterproofing, repair or replacement of the covering and, where required, insulation and a vapour control layer.
Roofs intended for solar panels are a separate case: if a solar plant is planned for the roof, the covering should be repaired before the array is installed. The company carries out both types of works, so they can be included in a single schedule.
On an operating facility, roof repairs are planned in sections: only the area that the crew can close by the end of the shift and before any precipitation is opened up. This allows production under the roof to continue and prevents repaired sections from becoming wet again. We separately assess the condition of the deck and the drainage — outlets, valleys, upstands to parapets and ventilation penetrations — as repeat leaks most often originate at these details. After completion we issue a watertightness guarantee and recommendations for seasonal inspection. The scope is fixed after the inspection: a local repair, a section replacement and a full replacement of the covering differ in the works involved and in duration.
- Repair and replacement of roof coverings
- Roof inspection and tracing the source of a leak
- Stopping leaks and restoring waterproofing
- Roofing for industrial, warehouse and commercial buildings
- Insulation and vapour barrier
- Preparing the roof for solar panel installation
- Maintenance, seasonal inspection and a guarantee against leaks
- Repair of outlets, valleys and upstands to parapets
- Sectional opening-up on an operating facility
Roof types
An industrial roof is rarely uniform: a single building may combine a membrane covering over the production hall, profiled sheeting over a canopy and an old bitumen covering over an annexe. Leaks most often occur at the junctions between them.
- Flat roofs with polymer membranes
- Bitumen and polymer-bitumen roll coverings
- Profiled sheet and sandwich panel roofs
- Pitched roofs of production and warehouse buildings
- Upstands to parapets, equipment and ventilation outlets
- Roof outlets, valleys, downpipes
Tracing the leak and restoring the waterproofing
Water that penetrates the covering travels along the insulation to the nearest seam and only appears on the ceiling at that point. A local repair at the location of the stain therefore generally does not eliminate the cause. We inspect the roof from above — seams, upstands, outlets, parapets, pipe penetrations — and compare the findings with the location of the wet patches below.
Based on the inspection, we propose one of three options: spot repair of details, replacement of the covering in a section, or a full re-covering with restoration of the waterproofing.
Repair on an operating facility
Repairs are carried out without stopping production. We open up only the section that the crew can close by the end of the shift. The order of sections is agreed with regard to the premises and equipment under the roof: above finished goods stores and equipment that must be protected from moisture, works are carried out during periods of stable weather.
Work at height is carried out by crews holding a permit for work at height.
A roof under a solar plant
Solar panels remain on a roof for many years, and repairing the covering beneath them requires dismantling the array. If a solar plant is planned, the covering should therefore be repaired before installation, and the deck checked for its capacity to carry the weight of the supports and the wind load on the panels.
We carry out both types of works with our own resources, so they can be included in a single schedule: the fixing points for the supports are provided during the repair, which avoids subsequently cutting through the new waterproofing.
Tented roof frame
The frame of a church roof: 1,316 beams, 455 columns and 976 plates on a 29 × 29 metre plan. The model shows the composition of the tented roof from trusses and bracing in the sequence of erection.
Shop-drawing model- Members
- 2,747
- Beams
- 1,316
- Columns
- 455
- Plates
- 976
- Plan
- 29 × 29 m
- Roof height
- 8.7 m
Design and construction
Typical facilities
- 01Flat roofs with polymer membranes
- 02Bitumen and polymer-bitumen roll coverings
- 03Roofs of profiled sheet and sandwich panels
- 04Pitched roofs of production and warehouse buildings
- 05Operating facilities where the roof is opened section by section
- 06Roofs being prepared for a solar array
How we work
Inspection
Diagnostics of the roof condition.
Solution
Selection of materials and technology.
Repair
Restoration of covering and waterproofing.
Guarantee
Watertightness control and guarantee.
Frequently asked questions
How much does a roof repair cost?
We calculate the exact cost after inspecting the roof. The price depends on the type of covering, the area and number of details, the condition of the insulation and deck, and whether a local repair is sufficient or a section or full replacement is required. Prices are quoted only on the basis of an inspection.
Local repair or replacement: selection criteria
The decision is based on the condition of the roof layers. If the covering is generally sound and only individual seams and upstands leak, we repair the details. If the insulation is wet over a significant area or has been patched repeatedly, a local repair would only postpone the next leak, so we propose replacement.
Will work in the workshop stop during the repair?
No. Works are carried out in sections that are closed within a shift, and their order is agreed with regard to the premises and equipment under the roof. The material hoisting area is fenced off. Temporary clearance of space is required only for works above equipment that must be protected from moisture.
Do you give a guarantee against leaks?
Yes: after the works we hand over a guarantee against leaks for the repaired sections. Its terms and period are fixed in the contract and depend on the type of covering and scope of works.
Do you repair the roof before solar panels are installed?
Yes; the repair is recommended before installation, as access to the covering is restricted once the array is in place. We inspect the roof, replace worn sections, and check upstands and drainage. The repair and the installation of the plant are included in a single schedule so that the fixing points are provided from the outset.
Send a request
Send a description of the task or the drawings and we will prepare a technical solution and a cost calculation.
Cost estimate for the works
Send us drawings or a technical specification and we will prepare a technical solution and a cost estimate.