When planning a house extension, don’t overlook the roof. It plays a big role in how your home looks, performs, and holds up over time. Here’s a quick breakdown of the most common roof styles for extensions — plus their pros and cons.
Gable Roof
Classic and Spacious
A traditional pitched roof with two sloping sides that meet at a peak.
Pros:
Timeless design that suits most properties
Allows for extra ceiling height or loft space
Good water drainage
Cons:
Exposed ends can be more vulnerable to wind
Slightly more materials and labour than a flat roof
Shed Roof
Sleek and Simple
A single-sloped roof often used on side or rear extensions.
Pros:
Simple to build and cost-effective
Ideal for modern or minimalist homes
Excellent rainwater runoff
Cons:
Less headroom on the lower side
Not always the best match for traditional properties
Hip Roof
Stable and Weather-Resistant
Slopes down on all four sides, meeting at a ridge or point.
Pros:
Very stable and durable in all weather
Good choice for high-wind or heavy rain areas
Creates a balanced, elegant look
Cons:
More complex and expensive to construct
Slightly less usable attic space than gable roofs
Flat Roof
Modern and Versatile
A horizontal or gently sloped surface, often used on single-storey additions.
Pros:
Budget-friendly and quick to build
Clean, modern lines
Great for skylights or green roofs
Cons:
Requires careful drainage
Needs regular maintenance over time
Final Thoughts
The best roof for your extension depends on your goals — whether it’s maximising light, saving space, cutting costs, or boosting kerb appeal. A designer or contractor can help you choose the right fit for your home, ensuring the final result looks great and performs well for years to come.
