Pitched Roof Construction Derby | New Build & Replacement

• Lower maintenance — fewer repairs needed over time compared to flat roofs
• Better insulation potential — easier to achieve high thermal performance
• Higher property value — traditional appearance appeals to buyers

If you are unsure whether your roof needs a repair, a partial replacement, or a full new build, we offer a free drone roof survey across Derby and Derbyshire — with no scaffolding and no obligation.

• Synthetic lightweight tiles — from around 15°, depending on the product

Shallower pitches are common on modern extensions in Littleover and Mickleover. For these, we select tiles rated for low-pitch work and follow BS 5534 guidance throughout. Steeper pitches suit the older terraced streets of Normanton and Pear Tree, where traditional clay tiles are still the right match for the building.

We assess every roof individually. We will tell you what pitch works for your property and your chosen material — before any work begins.

There are two main ways to build a pitched roof structure in Derby. The method we recommend depends on your building, your budget, and how you plan to use the space.

Cut roofs are built on-site, timber by timber. Each rafter is measured and cut to fit your specific roof shape. This method suits:

• Complex or irregular roof shapes
• Older Derby properties with non-standard dimensions
• Any home where you want to use the roof space as a habitable loft room
• Properties in conservation areas like Darley Abbey that need sympathetic detailing

Cut roofs take longer to build and cost more upfront. But they give you full design flexibility and are the only practical choice for a future loft conversion.

Trussed roofs use factory-engineered timber frames delivered to site and erected quickly. They are the standard choice on new-build estates across Derby.

Key points:

• Faster to install — ideal for tight build programmes
• More cost-effective on standard rectangular builds
• The most common type used on Derby’s post-war housing developments
• Must not be modified after installation without a structural engineer’s assessment

If you are thinking about converting your loft later, discuss this with us before we build. A standard trussed roof cannot simply be opened up — you either need a cut roof from the start, or a specially designed attic truss.

We help you make the right call before a single piece of timber is cut.

3. Purlins — Horizontal support beams added for longer rafter runs. Common on older Derby properties with wide roof spans — particularly pre-war semis and terraces in Alvaston and Spondon.

4. Breather membrane — Laid over the rafters before battening. This layer keeps wind and rain out while letting moisture vapour escape from the roof structure. All-weather installation — no waiting for dry spells.

5. Battens — Fixed at the correct gauge for your chosen tile type and pitch angle. The gauge controls how each tile overlaps the one below and is critical for weather-tightness.

6. Tiles or slates — Fixed to the battens and matched to the pitch, location, and property type. Dry-fix ridge and eaves systems are fitted as standard on every roof we build — no mortar-bedded ridges.

7. Valleys, hips, and verges — These junctions carry the highest water load and the greatest risk of ingress. We use valley trays, correct flashings, and dry-fix systems throughout.

Many older homes in Alvaston and Spondon have original cut roofs that need full reconstruction. We handle these jobs regularly — matching existing tile profiles where possible and bringing the full structure up to current BS 5534 standards.

Choosing the right roof covering is one of the most important decisions in any pitched roof project. The wrong material can void a manufacturer’s warranty, cause leaks, and fail a building regulations inspection. We work with all the main materials used across Derby’s varied housing stock.

• Durable, long-lasting, and well-suited to older Derby properties
• The right choice for conservation-sensitive areas such as Darley Abbey
• Minimum pitch around 20°
• Lightweight compared to concrete — important on older roof structures

• The most common covering on Derby’s post-war semis and new builds
• Suitable from around 15° pitch
• Wide range of profiles and colours
• Cost-effective and readily available

• Traditional appearance — common on older terraced housing in Normanton, Pear Tree, and the city centre
• Require a steeper pitch of around 35° or above
• Excellent longevity when properly maintained

• A modern alternative to natural slate or clay
• Ideal for re-roofing where the existing structure cannot carry heavier materials
• Suitable from around 15° pitch, depending on the product

Weight is a key factor on re-roofing jobs. If you want to replace a lightweight slate covering with heavier concrete tiles, the timber structure must be assessed first. We check load capacity on every re-roof before specifying any covering — at no extra charge.

Good insulation cuts heat loss, lowers energy bills, and keeps your roof compliant with Part L of the Building Regulations. Derby’s cold winters put real pressure on poorly insulated roofs — and an under-insulated pitched roof can account for a significant proportion of a home’s total heat loss.

Insulation is placed at ceiling joist level, below the roof space. This is the right choice when you do not plan to use the loft as a room. It is more straightforward to install and lower in cost. The loft space above remains cold and unheated — which is fine if it is used only for storage.

Insulation is placed between or above the rafters, bringing the roof structure within the thermal envelope. This is the correct method for habitable loft rooms and delivers better energy performance across the board.

We also install hybrid insulation systems that combine both approaches — useful on older Derby properties with irregular roof structures or where partial upgrades are needed to bring performance up to Part L standards.

Whatever system we install, roof ventilation is maintained throughout. Condensation in roof spaces is a common and recurring problem on older semis in Chaddesden and Littleover — often caused by blocked or poorly upgraded ventilation. We check for this on every survey and correct it as part of the build.

All our insulation work is Part L compliant. We advise you on the right system for your property, your budget, and your plans for the space.

• BS 5534:2014+A2:2018 — governs all slating and tiling work; requires dry-fix ridges and eaves on new and replacement roofs

Like-for-like repairs and minor maintenance generally do not need building regulations approval. However, it is always worth checking — and we advise you on this as a standard part of every free survey we carry out.

• Carrying out any work on a listed building, which requires listed building consent regardless of scale

The current householder planning application fee in England is £206. Additional costs apply if architectural drawings or structural calculations are required.
We advise on planning requirements as part of every free survey — and if consent is needed, we will tell you clearly before work starts, not after.

Weather always plays a part. We aim to complete every Derby job without unnecessary delays, and we keep you informed throughout. We also tidy up at the end of every working day — your property is left clean and secure overnight throughout the build.

• BS 5534 compliant on every job — dry-fix ridges and eaves as standard
• Part L insulation advice included — we flag energy efficiency issues during every survey
• We answer the phone — or call back the same day

We carry out pitched roof construction, replacement, and repair across Derby and the surrounding Derbyshire area. Our team works daily in the following locations:

Surrounding Derbyshire Towns & Villages:

Call 01332 529704 now or visit derbyroofers.co.uk/contact-derby-roofers to book your free survey. Appointments available across Derby and Derbyshire — including evenings and weekends.

“Very friendly and professional. They delivered my job on time and at a good price.”

DERBY ROOFERS - That is what we aim to hear from customers all the time.

• Wall plates, rafters, and purlins sized and fixed to BS 5534 for your roof span, tile weight, and local wind and snow loads, whether that’s a full cut roof or the erection and fixing of a factory-built trussed frame
• Breather membrane and battens fixed at the correct gauge for your chosen tile or slate, whether that’s concrete, clay, or natural slate
• Dry-fix ridge and eaves systems fitted as standard on every roof, so there are no mortar-bedded ridges left to crack or blow off in bad weather
• Valley trays, lead or GRP flashings, and dry-fix detailing at every hip, valley, and verge, matched to the roof’s junctions with chimneys, walls, and any adjoining flat roof sections
• A structural load capacity check before any re-roof, at no extra charge, if you are moving to a heavier covering such as natural slate
• Part L compliant insulation, fitted at ceiling joist level, at rafter level, or as a hybrid system depending on how you plan to use the loft
• Strip-out and disposal of the old roof covering, felt, and battens where you’re having a full re-roof, so there’s no separate skip or waste contractor to arrange
• A final check of ridges, valleys, and flashings for weathertightness before we consider the job finished
• Loft hatch and ventilation checks where insulation is being upgraded, so the finished roof space still gets the airflow it needs
• A free drone roof survey and a written, itemised quote before any work starts

• The householder planning application fee (currently £206) where planning permission is needed, plus any architectural drawings or structural calculations beyond that fee
• A structural engineer’s assessment, needed before a trussed roof can be modified or a flat roof converted to pitched
• Listed building consent, a separate legal process required for any work on a listed property regardless of job size
• Full scaffolding, where the drone survey or access equipment isn’t practical for the scale of the job — confirmed and costed as part of your written quote
• Rainwater goods such as gutters, downpipes, and fascias, unless they’re added as a separate line item to your quote
• Repointing or repair work to chimney stacks, which we can price alongside the roof but treat as a separate item
• Internal decoration or ceiling repairs where a leak or a flat-to-pitched conversion has caused damage inside the property

1. Free phone consultation: Call and talk through what you need — a new build, a full replacement, or a pitched roof on an extension — and book a free drone roof survey at a time that suits you.
2. Drone roof survey: We inspect the existing structure, pitch, and covering from the air — no scaffolding needed — and check load capacity if you are changing materials or converting a flat roof to pitched.
3. Written, itemised quote: You get a clear quote covering the construction method (cut or trussed), materials, insulation, and any building regulations or planning work involved, so there are no costs added once work has started.
4. Regulatory checks confirmed: Where building regulations approval or planning permission applies, we confirm this with you and Derby City Council before a single timber is cut, and set out what that means for your quote and programme.
5. Construction, wall plate to ridge: Our own team, with no subcontractors, builds the structure — wall plates, rafters and purlins for a cut roof, or the erected frames for a trussed roof — then fits the breather membrane and battens at the correct gauge, and lays the tiles or slate with dry-fix ridge and eaves systems and correct valley and flashing detailing throughout. Insulation goes in at the stage that suits how you plan to use the loft, whether that’s ceiling joist level, rafter level, or a hybrid of the two.
6. Building control sign-off: Where building regulations applied to the work, we arrange for building control to inspect the completed structure, insulation, and ventilation, and sign off the finished roof, so you have the paperwork you’ll need if you come to sell the property or need proof of compliant work for a mortgage lender.
7. Completion and clean-up: We tidy the site at the end of every working day and leave your property clean and secure, with a final check against the written quote before we finish.

A pitched roof that’s due for replacement, or an extension waiting on its roof structure, only gets more exposed the longer it’s left, and pricing for materials and access can shift the later a job is booked in. Booking your survey early also gives you more choice over tile or slate colour where we need to match an existing roofline or a neighbouring property, since some coverings run into longer lead times than others, and it gives us more room to schedule around any planning or building regulations checks your property needs. Get in touch to arrange your free drone roof survey and a written, itemised quote, with no scaffolding put up and no obligation until you’re ready to go ahead.