Craigavon at a glance
- Postcode districts
- BT62, BT63, BT64, BT65, BT66, BT67
- Population
- about 59,236 (GeoNames)
- Council area
- Armagh City, Banbridge and Craigavon Borough Council
- Building approval
- Armagh City, Banbridge and Craigavon Borough Council building control
- Nearest main town
- Lisburn, about 15 miles
- Guide price region
- Northern Ireland (−12% on West Midlands rates)
Why choose a green roof in Craigavon?
Homeowners in Craigavon building a new extension may find a green roof can help with a planning application, as some councils encourage them for biodiversity and slower rainwater run-off. It is worth raising early with your designer, before the roof structure is drawn up, so the joists can be sized for the extra weight.
Around Craigavon, flat roofs are common on terraced streets with flat-roofed rear kitchens and bathrooms and on low-rise post-war blocks of flats. Northern Ireland averages roughly 1,150 mm of rain a year, spread over many wet days, so a roof that sheds water quickly to clear outlets lasts far longer than one that holds puddles.
How much does a green roof cost in Craigavon?
For Craigavon we use Northern Ireland rates: £3,900–£7,100 is the guide for a 20 m² insulated extension roof finished as a sedum green roof, VAT included. The fixed price comes after a free survey for new and replacement roofs.
| Job | Guide price inc VAT |
|---|---|
| Extension (20 m²), EPDM with sedum green roof | £3,900–£7,100 |
| Extension (20 m²), EPDM, new deck + insulation | £2,450–£4,300 |
How long does a green roof last and how much maintenance does it need?
A well-built extensive green roof needs one or two maintenance visits a year, and the plant layer can help protect the membrane from sunlight and temperature swings.
Typical maintenance means pulling out weeds and tree seedlings before they root, clearing outlets and the gravel strips around edges, filling in any bare patches, and adding a slow-release feed if the sedum looks thin. Sedum is drought-tolerant once established, but newly laid blankets may need watering in a long dry spell during the first season.
The waterproofing underneath has the same expected life as on any other roof of that system. A green roof also slows down rainwater run-off from the roof and, when sedum flowers, attracts bees and other insects. Some councils encourage green roofs for those reasons, so it is worth mentioning one in a planning application for a new extension. Our maintenance guide covers routine checks.
What's included?
- Root-resistant membrane or separate root barrier
- Structural check of joists, deck and supports
- Gravel strips kept clear around edges and outlets
- Warm or inverted build-up to suit the roof
Building control in Northern Ireland
In Northern Ireland, Technical Booklet F1 sets roof insulation at 0.18 W/m²K when a roof over a heated room is renovated or newly built, where that's feasible. The district council's building control should be contacted before work starts, and we prepare the details it asks for. More on the rules.
Which nearby areas do we also cover?
Green and sedum roofs in Craigavon: questions
Do you cover Craigavon?
Yes. Craigavon is part of our County Armagh coverage, including postcode districts BT62, BT63, BT64, BT65, BT66, BT67. Surveys and roofs are carried out by vetted roofing teams working under S&K Property Investments and Improvement Ltd.
Who checks building regulations for a flat roof in Craigavon?
Where the work needs approval it goes to Armagh City, Banbridge and Craigavon Borough Council building control. We tell you at the survey whether your job needs it and deal with the paperwork as part of the quote.
How much does a green roof cost in Craigavon?
£3,900–£7,100 for a 20 m² insulated extension roof finished as a sedum green roof, at Northern Ireland guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.
Does a green roof leak more than a normal flat roof?
No, as long as it is built correctly. The waterproofing beneath is what keeps water out, and the green layers protect it from sun and weather. The main risk is building it on a weak or ageing membrane.
What happens if a green roof needs repairing?
The green layers are lifted around the problem area, the membrane is repaired, and the layers are relaid. Building on a sound, long-life membrane in the first place keeps that to a minimum.