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Mardome Access Hatch Polycarbonate Dome Rooflight
From
£459.08
ex. VAT
Based on the lowest‑priced size/spec. Price updates with selections

Your configuration

Mardome Access Hatch Polycarbonate Dome Rooflight

From
£459.08
ex. VAT
Based on the lowest‑priced size/spec. Price updates with selections
1: Length Step 1 of 8
1: Length
2: Width Step 2 of 8
2: Width
3: Glazing Step 3 of 8
3: Glazing
4: Tint Step 4 of 8
4: Tint
5: Shape Step 5 of 8
5: Shape
6: Kerb Step 6 of 8
6: Kerb
7: Opening Step 7 of 8
7: Opening
8: Ventilation Step 8 of 8
8: Ventilation

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Current configuration
From £459.08 ex. VAT
£550.89 inc. VAT
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Made in the UK

10 yr warranty

3-5 day delivery

Product overview

Mardome Access Hatch Polycarbonate Dome Rooflight

As part of our Polycarbonate Dome Rooflights range, this is our manually operated polycarbonate rooflight that provides natural daylight together with secure access to flat and low-pitch roofs.

✓Safe roof accessManual opening with locking arms provides controlled access and secure positioning.
✓Natural daylightThe glazed lid brings daylight into the space below when the hatch is closed.
✓Durable constructionUV-stabilised polycarbonate provides a lightweight, impact-resistant rooflight.
✓Qualifying express serviceEligible standard configurations may use the 24-hour or 48-hour Mardome service.

Choose your specification

OpeningManual access hatch with locking arms.
SkinsSingle, double or triple according to the selected configuration.
ShapeDome or pyramid where offered.
TintClear, opal or patterned.
KerbBuilder’s upstand or the available insulated kerb options.
VentilationUnvented or manual trickle ventilation where offered.

Size qualification

The selector shows the available access-hatch sizes. The brochure excludes 450×450, 600×600, 750×750, 900×600, 1350×1350, 1500×1500, 1800×1200 and 1800×1800 mm from Access Hatch configurations.

Access planning

Confirm safe approach, guarding, opening clearance and the intended maintenance route. Installation and use must follow the official access-hatch instructions and project safety requirements.

Before ordering: The 48-hour Access Hatch service is limited to a maximum of three units. Other sizes, quantities and specifications require confirmation.
Benefits & features

Mardome Access Hatch

A daylighting rooflight and manual access hatch combined in one durable polycarbonate unit for flat and low-pitch roofs.

✓Secure roof accessManual opening with locking arms supports controlled access and secure positioning.
✓Natural daylightThe glazed lid brings useful daylight into the space below.
✓Durable constructionUV-stabilised polycarbonate provides a lightweight, impact-resistant rooflight.
✓Configurable specificationChoose the available skin build-up, tint, shape, kerb and ventilation option.

Specification at a glance

OpeningManual access hatch with locking arms.
GlazingSingle, double or triple skin according to the selected configuration.
TintClear, opal or patterned.
ShapeDome or pyramid where offered.
KerbBuilder’s upstand or available insulated kerb options.
VentilationUnvented or manual trickle ventilation where offered.
ApplicationOccasional roof access and maintenance routes.
Roof pitchFlat and low-pitch roofs up to the published installation limit.
Access planning, guarding and safe use remain project responsibilities. Confirm the selected size is eligible for Access Hatch before ordering.
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Installation guidance

Plan the installation

The Mardome Access Hatch Polycarbonate Rooflight is designed for easy and secure installation on flat or low-pitch roofs. It can be mounted onto an existing builder’s upstand or supplied with a Brett Martin insulated kerb for a complete system. The access mechanism operates manually, with secure locking arms for safe positioning.

✓
MeasureConfirm the external dimensions of the prepared opening, kerb or builder’s upstand.
✓
PrepareEnsure the supporting structure is square, level, insulated and fully weathered before installation.
✓
Plan accessArrange safe access, unloading, lifting and handling for the delivered frame and glazing.
✓
Follow the guideUse the official installation instructions for the selected product and configuration.

Product-specific installation details

Installation Guidelines:Designed for use on flat and low-pitched roofs up to 15°.Install on a correctly prepared builder’s upstand or use a compatible Brett Martin insulated kerb.Ensure proper alignment of hinges and locking arms during installation.Glazing must be installed with the UV-resistant layer facing outward (as marked).Manual access hatches should open smoothly and stay securely in the open position using integrated locking arms.Thermal fracture caution: Avoid placing blinds directly beneath the unit; use light-coloured blinds positioned away from the glazing if required.

Installation video

Before work beginsCheck the selected product, site conditions and official installation guide before work begins.
Lead times & delivery

Mardome Access Hatch ordering guide

Qualifying Access Hatch configurations can use the Mardome 24-hour or 48-hour service. Orders for express manufacture must be placed before 12 noon.

24 hoursEligible standard Access Hatch combinations.
48 hoursEligible extended-matrix combinations, maximum three units.
By applicationOther sizes, quantities or specifications.

Service matrix

Service Qualification Limit
24-hour Qualifying standard Access Hatch size and specification Confirm final quantity and availability
48-hour Qualifying size and specification from the extended Mardome matrix Maximum 3 units
By application Other sizes, specifications or quantities Confirm before ordering

Excluded Access Hatch sizes (mm)

450×450 600×600 750×750 900×600
1350×1350 1500×1500 1800×1200 1800×1800

Delivery and ordering

Free UK mainland delivery. Final express eligibility depends on glazing, kerb, opening specification and production availability. Remote or restricted delivery areas require prior arrangement. Restricted postcodes require prior arrangement.
Please note

Lead times are guides rather than guarantees. Confirm any non-standard requirement before payment.

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