Flat Concrete Slab & Waterproofing is a building-planning choice included in the Price Your Build estimator. It can affect roof covering cost, fixing method, pitch and weatherproofing details.
What this option means
Routes roof area into a structural in-situ concrete slab, steel reinforcement, and torch-on waterproofing.
Why it affects the estimate
The estimator uses this selection to apply an appropriate allowance. Actual requirements depend on the final design, site conditions, supplier selection and contractor scope.
Before proceeding
Use the manufacturer’s minimum pitch and fixing guidance, with a roof design suited to local wind and rain exposure.
Compare the final specification and inclusions against quotations before appointing a contractor.
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