Commercial Roofing in Mildenhall

How we handle commercial roofing

Commercial Roofing in Mildenhall and the Surrounding Area

Commercial roofing covers any roof on a building that is not a private dwelling - offices, warehouses, workshops, retail units, agricultural stores, schools, churches and blocks of flats all fall into this category. The stakes are higher than on a domestic job: a leaking flat roof over a workshop floor or a failed parapet detail on a commercial unit can halt operations, damage stock and trigger expensive insurance claims. Getting the specification right from the start, and using the correct materials for the roof type, is what separates a repair that lasts from one that fails within a season.

We serve businesses and landlords in Mildenhall and in the neighbouring towns and villages including Barton Mills, West Row, Holywell Row, Icklingham, Cavenham, Lackford, Elveden, Herringswell, Kentford, Culford and Risby.

Types of Commercial Roof We Work On

Commercial properties carry a wider range of roof types than domestic housing, and each one has its own failure points. The most common systems we work on include:

• Built-up felt flat roofs - layered mineral felt systems found on extensions, covered walkways and older commercial buildings. Blistering, ponding water and split laps are the typical problems.
• EPDM rubber flat roofs - single-ply rubber membrane systems. When installed correctly these are long-lasting, but poor detailing around upstands, drains and penetrations is a common failure point on budget installations.
• Pitched roofs with fibre cement or profiled sheet cladding - common on agricultural and industrial buildings. Fixings corrode, sheets crack and ridge cappings lift in exposed conditions.
• Natural slate and plain clay tile pitched roofs - found on older commercial properties, pubs and converted farm buildings. Mortar bedding on ridges and verges eventually fails; individual slates slip as nibs and nails corrode.
• Lead, zinc and aluminium flashings and valleys - the junctions between roof planes, parapet walls and chimney stacks are where water most often gets in on commercial buildings.
• Box gutters and parapet gutters - internal gutters on flat-roofed commercial buildings that block with debris and overflow into the structure if not maintained.

What a Commercial Roofing Job Actually Involves

Before any materials go on, a proper survey of the existing roof structure is essential. On a flat roof that means checking the falls - the slight angle that drains water to the outlets. Older flat roofs are sometimes built with inadequate falls, and standing water accelerates felt and membrane degradation. Correcting falls during a re-roofing job costs more upfront but avoids repeated call-outs.

On a pitch roof survey, the underside of the deck or the rafter feet matter as much as the visible covering. If timber has softened due to prolonged water ingress, replacing the covering without addressing the structure leaves you with the same problem in a different form. We check fascia and soffit boards, valley troughs, lead work and any areas where roof lights or extraction fans penetrate the covering, because those penetrations are a leading source of leaks on commercial buildings.

Specification of the right material is not simply a cost decision. An EPDM membrane is suitable for a low-traffic flat roof. A more robust system is better where maintenance staff or engineers regularly walk the roof to service plant. The pitch, exposure and use of the building all affect what will perform well over time.

Why Commercial Roofing Should Not Be Left to a General Builder

A general builder can patch a leak, but commercial roofing involves detailing that is specific to each system. Torch-on felt requires correct substrate preparation and overlap dimensions. EPDM requires solvent-based bonding or mechanical fixing at perimeters and penetrations, and the seam tape must be applied to a clean, dry surface within a specific temperature range. Getting these details wrong produces a job that looks fine on the day but fails at the first hard frost or prolonged rain.

Working at height on a commercial building also involves different risks to a domestic job. Larger roof areas, fragile roof lights, unprotected edges and the need to keep the building operational beneath you all demand proper planning. On many commercial jobs this means edge protection, scaffolding or a cherry picker rather than just a ladder. Skipping those precautions does not save money - it creates liability and increases the chance of a serious accident.

Matching the replacement material to the original specification also matters where the building is leasehold or subject to planning conditions. Changing a natural slate roof to a modern alternative on a building in a conservation area, for example, requires consent. We can advise on what is likely to apply before work starts.

Flat Roof Repair or Full Replacement - How to Decide

A flat roof that is failing in isolated spots - a split lap here, a lifted flashing there - can often be repaired cost-effectively if the underlying membrane is still largely sound and the insulation beneath is dry. Wet insulation loses most of its thermal value and will never dry out fully once water has tracked in, so if a survey shows widespread saturation, repairs alone will not restore the roof to a functioning state.

As a general guide, a felt flat roof over 15-20 years old with multiple blistered or split areas across more than a third of its surface is usually better replaced than patched. The cost of repeated call-out repairs over two or three years often exceeds the cost of a single replacement done properly. A new EPDM flat roof on a commercial building in Suffolk typically costs in the region of £70-£100 per square metre installed, depending on access, thickness of insulation required and the complexity of the detailing. Larger roofs with straightforward access tend toward the lower end of that range.

Maintenance Contracts and Scheduled Inspections

Many commercial roof failures are entirely preventable. Box gutters block with leaves and moss, outlet grilles clog, and small splits that could be sealed in minutes grow into major leaks because nobody checked the roof before autumn rain set in. A straightforward annual inspection - clearing outlets, checking flashings and noting any areas of concern before they develop - is far less disruptive and expensive than an emergency call-out during a busy trading week.

If you manage multiple commercial properties in Mildenhall or the surrounding villages, a scheduled inspection programme makes it easier to budget for roofing maintenance and avoid unexpected large costs. We can carry out inspections and provide written notes on the condition of each roof so you have a record for your property management files.

Agricultural and Rural Commercial Buildings

Fixings on profiled sheet roofs corrode over time, and the neoprene washers under each fixing head deteriorate and allow water in at hundreds of points across a single roof span. Replacing corroded fixings with stainless steel alternatives and fitting new washers is a cost-effective way to extend the life of an otherwise sound sheet roof.

Older clay pantile roofs on converted agricultural buildings in this part of Suffolk need particular care at ridges and verges, where lime mortar was traditionally used. Modern cement mortar is too rigid for traditional clay tiles and causes more cracking than it prevents. A re-bedding job done with the correct mortar mix makes a real difference to longevity.

Get a Survey Before You Commit to Any Work

If your commercial roof is showing signs of trouble - water stains on ceilings, visible lifted flashings, pooling water after rain or missing pointing on a parapet wall - call us to arrange a roof survey. We will tell you honestly what we find and what your options are, without pushing you towards the most expensive solution.

Call us to arrange a survey of your commercial property in Mildenhall, Barton Mills, West Row, Kentford or any of the surrounding villages.