Order roofing materials for delivery in Darwen

Our roofing materials range for Darwen jobs

• Roofing battensTreated battens graded for roofing.
• Ridge, hip and verge systemsDry-fix and mortar-bedded options, with vents and fixings.
• Breathable membranesUnderlays that keep wind-driven rain out but let vapour escape.
• Concrete interlocking tilesEconomical tiles in many profiles and colours; low pitches possible with some profiles.
• Flat roof materialsFelt, EPDM and GRP systems for porches, garages and dormers.

Things to check before you order

Check the minimum pitch

Every tile and slate has a minimum rafter pitch set by the manufacturer. A shallow extension roof may rule some tiles out.

Fixing requirements

BS 5534 sets out how tiles must be fixed against wind uplift, which in most cases means every tile is mechanically fixed. Ask for the fixing specification with your tiles.

In England, building work is checked against the Approved Documents, for example Part A for structure and Part L for energy efficiency, through your council's building control team or a registered building control approver.

Working out quantities for your Darwen job

A 42 m² roof slope needs roughly 420 large-format interlocking tiles, or about 2,520 small plain tiles, before ridge, hip and verge pieces. The exact count comes from the tile's gauge, so send us the roof measurements and pitch and we will work it out with the battens and membrane.

Planning the drop in Darwen

Tiles and slates arrive palletised and are usually crane-offloaded where access allows; battens and membrane rolls travel with them. Darwen is inside our standard mainland delivery area.

• Pallets left on a pavement can block the footway, so plan a drop point inside your boundary where you can.
• Deliveries are to the kerb, drive or within crane reach; ask if materials need to go further.
• Have someone on site for the delivery if you can, or agree a safe drop point with us in advance.

Roofing Materials questions

What is dry-fix ridge?

A mechanical system that fixes ridge and hip tiles without mortar, which avoids mortar cracking and is now common on new roofs.

Do you deliver roofing materials to trades and homeowners in Darwen?

Both. Trades can apply for a trade account; homeowners and self-builders can order on a delivered quote.

Can I add other materials to my Darwen delivery?

Yes. Put everything on one list, from roofing materials to fixings and PPE, and we will price it as one delivery where the products can travel together.

Do I need a breathable membrane?

Most new pitched roofs use a breathable (vapour-permeable) underlay, which helps control condensation in the roof space. Some designs use a non-breathable underlay with ventilation instead.