Aluminum Spare Strainer for Saudi Cast FD-4010, FD-4020, FD-4030 and FD-4040 Scupper Roof Drains

شبك المونيوم لجرجوري سعودي كاست

The Aluminum Spare Strainer is an original Saudi Cast replacement grate for the FD-4010, FD-4020, FD-4030 and FD-4040 series of scupper and parapet roof drains. When a strainer is lost, bent, damaged or removed during roofing work, this spare lets you restore the drain to full working order without replacing the cast iron body. Fanoos AlHadeeth Trading supplies the Aluminum Spare Strainer from Jeddah to contractors, facility managers and maintenance teams across the Kingdom of Saudi Arabia.

Aluminum Spare Strainer: Product Overview

Scupper and parapet roof drains sit at the junction of the roof and the parapet wall. Their job is to take rainwater off the roof quickly, either through a horizontal pipe that runs through the parapet or through a vertical pipe that drops inside the building. On the Saudi Cast FD-4000 scupper series, the drain body is cast iron and the top of the drain is protected by a removable aluminum grate. The grate is slotted, so water passes through freely while leaves, gravel and other debris are held back and cannot block the drainage openings.

Because the grate is removable, it is also the part most likely to go missing or be damaged over the life of a building. Roofers lift it to install membranes, cleaners remove it to clear debris, and foot traffic or impact can bend it. A drain without its strainer quickly fills with debris and can lose capacity just when a heavy rainstorm arrives. The Aluminum Spare Strainer solves this by giving you a genuine replacement part that matches the original drain.

Aluminum is a practical material for roof drain grates. It is light, so it is easy to lift and refit, and it resists the corrosion caused by rainwater and outdoor exposure. Saudi Cast lists aluminum (AL) as the standard grate material for this series, with nickel bronze (NB) also offered on the drains themselves.

Why the Aluminum Spare Strainer Matters on Saudi Roofs

Roofs in Saudi Arabia face conditions that are hard on drainage. Long dry periods allow sand, dust, leaves and small debris to build up on the roof, and when rain finally comes it is often short and heavy. If a roof drain has lost its grate, all of that material is washed straight into the drain and the pipework below. The result can be a blocked outlet, water ponding on the roof, and in the worst case water finding its way over the parapet or into the building.

The Aluminum Spare Strainer is a small part with a big job. By holding back debris at the surface, it keeps the drain body and the downpipe clear, so the roof can shed water the way the designer intended. Replacing a missing strainer is one of the simplest and lowest cost steps a building owner can take to protect the roof, the waterproofing and the spaces underneath.

For maintenance teams, keeping an Aluminum Spare Strainer in stock also saves time. Instead of waiting for a replacement when a grate is found damaged during an inspection, the team can fit a new strainer on the same visit and close the job.

How the Saudi Cast FD-4000 Scupper Series Works

The FD-4010, FD-4020, FD-4030 and FD-4040 are scupper and parapet roof drains. They are installed where the roof slab meets the parapet wall, which is usually the lowest point of a flat roof and the natural place for water to collect. Each drain has a cast iron body, a membrane flashing clamp and a removable grate on top.

The flashing clamp is important for waterproofing. It positively secures the roof membrane and flashing to the drain body with compression, so water is directed into the drain rather than under the membrane. The grate, which the Aluminum Spare Strainer replaces, sits above this and keeps the drainage openings clear.

According to Saudi Cast, drains in this series can be used as a secondary (overflow) drain or, in special cases, as a primary drain. The FD-4010 and FD-4020 have a reversible side or bottom outlet, which suits either horizontal piping through the parapet or vertical piping inside the building. The FD-4030 and FD-4040 have a 45° side outlet for vertical pipe arrangements. All four have a threaded outlet in 2, 3 or 4 inch.

Key Features of the Aluminum Spare Strainer

• Original Saudi Cast spare part: made for the FD-4010, FD-4020, FD-4030 and FD-4040 scupper roof drain series.
• Aluminum construction: lightweight and corrosion resistant for outdoor roof use.
• Slotted design: lets water through while keeping debris out of the drain openings.
• Removable: lifts out for cleaning, inspection and roofing work, then refits on the drain.
• 210 cm² strainer free area: the free area Saudi Cast publishes for this drain series.
• Restores the drain: replaces a lost or damaged grate without changing the cast iron body.

Compatible Saudi Cast Scupper Roof Drains

All four drains in the series share a cast iron body, a threaded outlet in 2, 3 or 4 inch, a membrane flashing clamp and a strainer free area of 210 cm². They differ in outlet direction and grate angle, as published by Saudi Cast:

Because the grate angle is 90° on some models and 45° on others, please tell our team the exact drain model when you order, so we can confirm the correct strainer for your roof.

90° Angle Grate or 45° Sloping Grate

The main difference between the drains in this series, from a strainer point of view, is the grate shape. The FD-4010 and FD-4030 use a 90° angle grate, which sits in the corner between the roof and the parapet wall. The FD-4020 and FD-4040 use a 45° sloping grate; Saudi Cast notes that the sloping grate provides ample drainage while its slots still keep debris out. On the FD-4020 the grate sits in a 90° combination frame.

Before ordering an Aluminum Spare Strainer, check which shape is installed on your roof. A quick photo of the drain is usually enough for our team to confirm the right part.

Aluminum or Nickel Bronze

Saudi Cast offers grates for this drain series in aluminum (AL) and nickel bronze (NB). The Aluminum Spare Strainer is the aluminum version. Aluminum is light, easy to handle on the roof and resistant to corrosion, which makes it a practical choice for most buildings. If your project specification calls for nickel bronze grates, ask our team about availability.

Understanding the 210 cm² Strainer Free Area

Saudi Cast publishes a strainer free area of 210 cm² for the FD-4010, FD-4020, FD-4030 and FD-4040 drains. Free area means the total open area of the slots through which water can pass. A strainer needs enough open area to let water through quickly, while the slots still need to be narrow enough to stop debris. Using the correct Aluminum Spare Strainer helps keep the drain working with the free area it was designed for. Fitting a home-made cover or a grate from another drain can reduce this open area or leave gaps that let debris through.

The free area of the strainer is only one part of roof drainage design. Drain sizing, outlet size and the number of drains on a roof are decided by the project’s designer. If you are planning a new roof or a major refurbishment, our team can share the manufacturer documentation for the complete drains.

Applications of the Aluminum Spare Strainer

• Replacing lost or damaged grates on FD-4010, FD-4020, FD-4030 and FD-4040 scupper roof drains
• Roof maintenance and refurbishment in residential, commercial and industrial buildings
• Restoring drains after waterproofing or membrane replacement work
• Keeping spare grates in stock for facility management and building maintenance teams
• Secondary (overflow) and primary parapet drains, as specified by Saudi Cast for this series

How to Fit the Aluminum Spare Strainer

1. Confirm the drain model (FD-4010, FD-4020, FD-4030 or FD-4040) from the drawings or by checking the drain on site.
2. Remove the old or damaged grate and any loose debris from the drain.
3. Clean the seating area of the drain body so the new strainer sits evenly.
4. Check that the flashing clamp and membrane are still secure before refitting.
5. Place the Aluminum Spare Strainer in position on the drain and make sure it sits evenly.
6. Pour water near the drain and check that it flows freely through the slots.

Cleaning and Maintenance of the Aluminum Spare Strainer

A roof drain strainer works best when it is kept clear. Inspect roof drains regularly, and always before and after the rainy season or a sandstorm. Lift the strainer, remove leaves, sand and debris from the slots and the drain opening, and refit it. Never leave a roof drain without its strainer, because debris can enter the pipework and cause blockages that are difficult and costly to clear.

Who Uses the Aluminum Spare Strainer

The Aluminum Spare Strainer is ordered by several kinds of customers. Facility management companies keep spares for the buildings they maintain. Roofing and waterproofing contractors replace grates that are damaged or lost during their work. Building owners and property managers order replacements after an inspection finds a missing grate. Main contractors and MEP contractors order strainers when handing over a project, so that every drain is complete before the building is accepted.

Handling and Storage

Keep spare strainers in their packaging in a dry store until they are needed. Handle them with care on the roof, avoid standing on the grate, and do not use it as a step or a support for equipment. When a strainer is removed for roofing work, store it safely nearby and refit it as soon as the work is finished, so the drain is never left open overnight or during rain.

Signs Your Roof Drain Needs a New Aluminum Spare Strainer

• The grate is missing after roofing, waterproofing or cleaning work
• The grate is bent, cracked or no longer sits flat on the drain
• Slots are broken, letting large debris pass into the drain
• Water ponds around the drain after rain even when the pipe is clear
• Sand or gravel is found inside the drain body or the downpipe

Roof Drain Inspection Checklist

• Check that every scupper drain has its strainer in place
• Lift each strainer and remove sand, leaves and debris
• Look for damage to the grate and replace it with an Aluminum Spare Strainer if needed
• Check that the membrane and flashing clamp are secure around the drain
• Pour water at the drain and confirm it flows away freely
• Record the drain model so spare parts can be ordered quickly next time

Choosing the Right Aluminum Spare Strainer

Start with the drain model and grate shape. The FD-4010 and FD-4030 use a 90° angle grate, while the FD-4020 and FD-4040 use a 45° sloping grate. If you are not sure which drain is installed, send us a photo of the drain or the project drawing and our team will help you choose. For larger projects, we can also supply complete Saudi Cast scupper roof drains in 2, 3 and 4 inch outlet sizes. You can read the manufacturer’s information on the Saudi Cast FD-4010 product page.

Ordering Checklist

To get a fast and accurate quotation for the Aluminum Spare Strainer, please send us:

• The drain model: FD-4010, FD-4020, FD-4030 or FD-4040
• The grate shape installed: 90° angle grate or 45° sloping grate
• The quantity of strainers you need
• Your project name and delivery location
• A photo of the drain if you are not sure of the model

Why Buy the Aluminum Spare Strainer from Fanoos

Fanoos AlHadeeth Trading is a verified dealer of original Saudi Cast products. Buying from a verified dealer means you receive the genuine Saudi Cast part, matched to the drain series, with documentation and support from a team that knows the product range. We have supplied plumbing and drainage products to contractors, consultants and building owners for more than 18 years, and we can combine the Aluminum Spare Strainer with other Saudi Cast drains, covers and accessories in one order.

Roof Drain Terms Explained

• Scupper drain: a roof drain installed at the parapet, where the roof meets the wall.
• Strainer or grate: the removable top of the drain that lets water in and keeps debris out.
• Free area: the total open area of the strainer slots.
• Flashing clamp: the part that clamps the roof membrane and flashing to the drain body.
• Secondary drain: an overflow drain that takes water if the primary drain cannot.
• Reversible outlet: an outlet that can be set for horizontal or vertical piping.

Frequently Asked Questions

Which drains does the Aluminum Spare Strainer fit?

It is the Saudi Cast spare strainer for the FD-4010, FD-4020, FD-4030 and FD-4040 scupper roof drain series. Tell us your exact model so we can confirm the grate angle.

What is the strainer made of?

The strainer is made of aluminum, which is light and resists corrosion in outdoor roof conditions.

Can I order dimensions or a drawing?

Yes. Dimensions and drawings are available on request from our sales team.

Do you supply project quantities?

Yes. Send us your quantities and delivery location and we will reply with availability and a quotation.

Can one Aluminum Spare Strainer be used on every drain in the series?

The four drains use either a 90° angle grate or a 45° sloping grate, so the correct strainer depends on the model. Our team will confirm the right Aluminum Spare Strainer for your drain.

Is the strainer needed if the drain is only a secondary drain?

Yes. A secondary (overflow) drain must stay clear so it can work when it is needed. A missing grate allows debris to block it before the next storm.

How often should roof drain strainers be cleaned?

Inspect and clean them regularly, and always before and after the rainy season and after sandstorms.

Does replacing the strainer require changing the drain body?

No. The strainer is removable, so the Aluminum Spare Strainer can be fitted without changing the cast iron drain body or the roof waterproofing.

Order the Aluminum Spare Strainer from Fanoos

Fanoos AlHadeeth Trading is a verified dealer of original Saudi Cast products, with more than 18 years of experience supplying plumbing and drainage products from Jeddah to projects across Saudi Arabia. Browse our full range on the Fanoos homepage or contact our sales team to request a quotation for the Aluminum Spare Strainer.

Our sales team typically replies to quotation requests within 48 hours. You can ask for a single replacement strainer for one building, or for a full set of spares covering every scupper drain in a project. We deliver across Jeddah and the wider Kingdom of Saudi Arabia, and we are happy to help you check drain models, grate shapes and quantities before you place your order.