Targeted roof repairs
Planned repairs to localised defects where the surrounding roof is sound and a compatible repair is appropriate.
Repair · Overlay · Replacement
Flat roof repairs
& re-roofing.
From a targeted repair to a membrane overlay or complete replacement, we assess your roof and explain the options for a lasting solution.
Baring Road / SouthbourneFullstructural rebuilds where required
Smartoverlay options where suitable
25year warranties available
Start with the roof condition
Repair, overlay or rebuild—the right answer depends on what is underneath.
A localised leak or damaged detail does not always mean replacing the whole roof. We assess the cause, the surrounding covering and the deck before recommending a compatible repair where suitable.
A flat roof can look tired on the surface while the structure below remains sound. In that situation, a compatible overlay can extend its service life without the cost and disruption of stripping everything away.
If moisture, decay or an unsuitable structure is found, covering over it only hides the problem. We can strip the roof back, renew the necessary timber and decking, then install a complete waterproofing and roofline package.
Complete flat-roof work
From structure
to finished edge.
One team can take responsibility for the roof structure, deck, membrane, perimeter finish and drainage—keeping the scope clear from the start.
Full strip & rebuild
Removal of failed coverings followed by structural timber, decking and waterproofing renewal where required.
Membrane overlays
A cost-effective option when investigation confirms the existing deck and roof structure remain suitable.
New roofs & roofline
Complete packages for extensions, garden rooms and new builds, including fascias, edge trims and drainage.
The work beneath the membrane
Strip back.
Assess.
Rebuild correctly.
At Baring Road, replacing only the covering was not appropriate. The old roof was removed and a complete new timber structure installed before waterproofing began.
- 01
Renew the supportNew 100 × 50mm timber wall plates mechanically fixed to the masonry.
- 02
Form the structure150 × 50mm joists at 400mm centres, with noggins maintaining spacing and restraint straps tying the roof structure to the garage wall.
- 03
Deck and finishAn 18mm OSB deck, Alwitra Evalon VSK membrane, Evalon-coated aluminium drip trims, white uPVC fascias, guttering and a new downpipe.
Two roofs, two solutions
Replace what has failed.
Retain what still works.
These Southbourne projects show why a flat-roof specification should follow the condition of the existing roof rather than a fixed one-size-fits-all approach.
Full rebuildBaring Road · Southbourne · 18m²
From asbestos-cement sheets to a complete new roof
The garage roof was fully stripped and rebuilt ahead of a separate solar-panel installation. New wall plates, joists, noggins and an 18mm OSB deck created the roof structure, finished with Alwitra Evalon VSK, coated aluminium drip trims, white uPVC fascias and new rainwater goods.
- Complete timber roof structure
- 18mm OSB roof deck
- Alwitra Evalon VSK waterproofing
- Fascias, gutter and downpipe
Membrane overlaySouthbourne · Dorset
A sound deck retained and overlaid
Inspection found the ageing GRP covering was nearing the end of its useful life, while the timber below remained in good condition. Loose and sharp GRP was removed, followed by separation fleece and a mechanically fixed Siltec RP membrane with matching aluminium drip and water-check profiles.
- Existing deck retained
- Separation fleece installed
- Mechanically fixed Siltec RP
- Prepared ahead of solar works
Common questions
Choosing the right
flat-roof work.
Can a leaking flat roof be repaired rather than replaced?+
Sometimes. Where a defect is localised and the surrounding covering and deck are sound, a compatible repair may be suitable. We first assess the source of the problem and the wider roof condition. Widespread deterioration, trapped moisture or a failed deck may call for more extensive work.
Does an old flat roof always need stripping?+
No. If the existing structure and deck are dry, stable and compatible, a correctly prepared membrane overlay may be possible. Where the deck or structure has failed, a full strip and rebuild is the dependable option.
Can a flat roof be renewed before solar panels are fitted?+
Yes. Renewing an ageing roof before the solar installation can avoid removing the panels later to carry out roofing work. The solar designer and installer remain responsible for their mounting system, loading and attachment details.
Do you replace the timber structure as well as the covering?+
Yes, when required. Monos can replace wall plates, joists, noggins and the roof deck before completing the waterproofing, roofline and rainwater goods.
Which waterproofing systems do you install?+
We are approved contractors for Alwitra, Siltec and Protan. The membrane and fixing method are selected around the substrate, roof condition, detailing and project requirements.
Need an honest assessment?
Show us the roof.
We'll explain the options.
Send over photographs, measurements or plans. We aim to respond to every enquiry within 24 hours.
info@monosroofing.comEmail photos or plans with the project postcode.