Question 1

What should I budget for a commercial flat roof replacement in Norfolk?

Accepted Answer

Costs vary depending on the system, the size of the roof and what access is needed. Torch-on felt and EPDM rubber systems typically run from around £45 to £80 per square metre for the waterproofing layers. Scaffold, deck repairs and any structural work are priced separately. A site visit is the only reliable way to give you a firm figure.

Question 2

How long does it take to replace a pitched roof on a commercial building?

Accepted Answer

The programme depends heavily on the size and complexity of the roof and whether the building needs to stay in use throughout. A straightforward re-roofing job on a small commercial premises might take three to five days. A larger or more complex project will take longer and will be planned with you before work begins.

Question 3

Repair or replace a commercial roof - how do I decide?

Accepted Answer

The honest answer depends on the age of the existing roof, the extent of the damage and whether the underlying deck is sound. A roof with isolated damage on a structurally good deck is usually worth repairing. If the membrane or tile covering is near the end of its effective life, has multiple failure points, or the deck beneath is wet and deteriorating, replacement is typically the more cost-effective option over a five to ten year horizon. A survey will give you the information you need to decide.

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