CommercialOne Central Boulevard
Solihull, West MidlandsSingle Ply
07Roofing service
Roof Refurbishment
Roof refurbishment extends the life of an existing flat roof without the cost and disruption of full replacement. After core sampling and moisture testing, we recommend overlay, partial strip or full replacement, and give you the evidence behind the recommendation rather than just a price.
- Survey
- Core sampling and moisture testing
- Options
- Overlay, partial strip or full replacement
- Guarantee
- Full manufacturer guarantee on overlay
- Disruption
- Phased around occupation
About Roof Refurbishment
Most failing commercial flat roofs do not need stripping. The membrane has reached the end of its life but the insulation beneath is dry and the deck is sound. In that case an overlay gives you a fully guaranteed roof for substantially less money and in a fraction of the programme.
Deciding that requires evidence. We core the roof in a grid, moisture test the insulation, check falls and outlet capacity, and inspect the deck condition. The report tells you which parts of the build-up can stay and which cannot, area by area, so the scope is based on the roof rather than an assumption.
Refurbishment is also the easiest point at which to fix the things that caused the failure. Correcting falls with tapered insulation, increasing outlet capacity and upgrading thermal performance all cost very little extra while the roof is open, and they are what stops the same failure repeating.
Best suited to
- Roofs at end of membrane life with a sound deck
- Budgets that will not carry full replacement
- Occupied buildings that cannot be decanted
- Estates planning capital works over several years
Sectors we install it in
Typical build-up
Section / outside in- 01
New waterproofing
Overlay or full renewal to suit the survey findings
- 02
Tapered insulation
Added where falls need correcting
- 03
Retained existing build-up
Where core sampling confirms it is dry and sound
- 04
Localised repairs
Wet insulation and failed deck cut out and replaced
Specifying this system?
We issue technical submittals, U-value calculations, wind uplift calculations and detail drawings as part of the tender return.
Send us the specificationDelivered
All case studiesProjects using this system
Common questions
Refurbishment, answered
How do we know if the roof can be overlaid?
Core sampling and moisture testing. We take cores across the roof on a grid, record the build-up and moisture content at each, and map the results. If more than a limited proportion of the insulation is wet, an overlay is not appropriate and we will say so.
Can refurbishment be phased across financial years?
Yes, and it very often is. We will prioritise the roof areas by condition and risk so the worst are done first, and give you a costed multi-year plan you can take to a capital programme.
Tender & project enquiries
Have a project for us?
Send Absolute Waterproofing your roofing enquiry or tender. Drawings, specifications and a link to the tender information can all go with it, and our estimating team will come back to you with a considered price rather than a holding email.
