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GLRF Glazed Roof Access Hatch

Opening for access
  • £444.00 (ex. VAT)
  • £592.00 (ex. VAT)
Item in Stock | Free Next Working Day Delivery (Mon-Fri)
Want it by Tuesday 25th January? Order within 1 day, 25 minutes and choose FREE Delivery to most of UK (Mon-Fri) at checkout.
FREE DELIVERY to most of UK See above for delivery estimate

Roof hatch sizing information for DF Kerb version
Size guide for DF Kerb opening roof hatch

Roof hatch sizing information for 150mm and 300mm Kerb

Our size relates to the highlighted dimension

Our hatch sizes relate to the dimension marked "Dome Size"

Dome Size (mm), Daylight Areas (m2)/ Opening angle ±2°

Size (mm)

7500.36 / 75°0.45 / 83°0.54 / 83°0.63 / 83°0.72 / 75°0.81 / 83°0.90 / 83°0.99 / 83°
900 0.56 / 75°0.68 / 75°0.79 / 75°0.90 / 75°1.01 / 75°1.13 / 75°1.24 / 75°
1050   0.95 / 75°1.08 / 75°1.22 / 75°1.35 / 75° 
1200   1.10 / 70°    

Light Transmission 

Glazing colour options

Please note as this item is built to order, any returns are subject to a disassembly and restocking charge

Note: Textured is available at the same price as the equivalent size clear or opal dome - Please telephone to order

Glazed Roof Access Hatch

•   Double or Triple Glazed domes which open to between 70° and 83° depending on the hatch size

•    3 kerb options

•    Sleek, low rise dome

•    Large daylight area

•    Secure fixings

•    Can be fitted on roofs with pitch up to 15°

•    U Value as low as 1.2 W/m²K for Triple Glazed with 150 or 300mm PVC kerb and 2.7 W/m²K for Double Glazed

•    All hatches are hinged on the long side.


A high quality roof hatch fitted with gas struts which gently open to between 70° - 83° for access. This opening angle range varies according to the size of hatch you order. Our sleek design features an aesthetically pleasing low rise polycarbonate dome fitted to a choice of PVC kerbs. The dome cassette is attached to the kerb using innovative security fixings which spin once they reach a certain torque. This means they cannot be accidentally overtightened during installation, but also cannot be undone without a specialist tool (one supplied with each hatch). Each hatch is fitted with a secure handle which allows manual opening. The entire range has been independently tested and accredited by the British Board of Agreement (BBA) or by EN 12101 assessments, and is CE marked in accordance with BS EN 1873 or EN 12101 testifying compliance with Building Regulations and industry good practice.

Kerb Options
DF Kerb - a 100mm PVC kerb designed to be fitted to an existing up stand
150mm kerb - Multi-wall construction with superior thermal performance – Fits straight to roof deck, the kerb foot radius is designed to allow the easy application of roof covering up to the termination point/ membrane clamp.
300mm kerb - Multi-wall construction with superior thermal performance – Fits straight to roof deck Taller kerb useful where additional insulation is being added to the top of the roof
The 150mm and 300mm kerbs slope at a steeper angle than some rival products. This results in a larger daylight area; reduced by only 150mm on each dimension resulting in a greater daylight area (25% on small sizes and 10% on big sizes). Additionally it means a bigger clear area for access.
Kerb height – 150mm and 300mm refers to the membrane termination height, the actual height to the top of the kerb is 216mm and 365mm respectively.

We use UV stable Polycarbonate for our dome cassettes. Polycarbonate is 200 times more impact resistant than glass. The triple glazed dome features 3 separate layers meaning there is no cold bridge which can occur when layers touch. This minimises the risk of condensation. Available in 3 colour options.

Thermal efficiency

To comply with Part L Building Regulation requirements roof domes must achieve a U value of 2.2 W/m²K or lower. Our 150mm and 300mm PVC kerbs achieve the following U-Value range
Double Glazed with 150mm or 300mm PVC Kerb 1.6 – 2.1 W/m²K (exceeds thermal requirements of Part L in all sizes)
Triple Glazed with 150mm or 300mm PVC kerb 1.2 – 1.5 W/m²K (exceeds thermal requirements of Part L in all sizes)

Please note the DF kerb is less thermally efficient (Double Glazed 2.7 W/m²K Triple Glazed 1.8 W/m²K)

The product is designed to have a life of at least 20 years and is guaranteed for 10 years.

Fitting & installation instructions
Each hatch is supplied with fitting/installation instructions. The hatch is designed to be fitted to a range of roofing systems including single ply, bituminous, metal and liquid applied. This versatile product is suitable for a wide range of flat roof applications. Ideal for new builds and refurbishment projects, this product is routinely used for both residential and commercial projects. (Please note while we describe this as a flat roof product it can be fitted to roofs with a pitch not exceeding a 15° roofing application).

Please note, due to the nature of this product our standard returns policy does not apply. Returns will be subject to a restocking fee. The product must be returned in the condition it was dispatched in (i.e. in saleable condition, in it's original packaging).

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UK Delivery Zones

Free Next Working Day Delivery on all stock items being sent to UK Zones A&B

The lead times and delivery service are displayed against each product, just below the price.
We will continue to send items on a Next working day delivery, but please accept delivery might take longer, this is out of our control.

Please note, for certain products and delivery zones we can offer AM deliveries and Saturday Deliveries, if available, you'll be able to select and pay for these options via the checkout.

Delivery Charges will be applied for deliveries to geographical  areas represented as Zones C, D and E:
This includes certain parts of Scotland, Scottish Islands, Northern Ireland, Channel Islands and IOM)

You can return a standard product (most access panels and loft hatches) within 14 days of receipt. Roof domes, Roof Lights, Roof Hatches and AOV Smoke Vents will be subject to a collection restocking fee.
Please note Made to measure products cannot be returned.
Click here to download a return form.