Waterproof Shade Net 100% — 400 GSM Green, 50m x 3m Roll
Waterproof Shade Net 100% — 400 GSM Green, 50m x 3m Roll
Heavy-duty, UV-stabilised, fully waterproof shade netting for car park shades, carports, patios, walkways and boundary privacy screens. One roll delivers 150 m² of rain-shedding, 100% sun-blocking cover — supplied and delivered across Nairobi by Shabbiri Hardware.
What this 400 GSM waterproof shade net is built for
The Waterproof Shade Net 100% — 400 GSM Green (50m × 3m) is the heavy-duty end of the shade-net range. Where a 70% or 90% agricultural net is an open knit that filters sunlight but still lets rain drip through, this fabric is a tightly woven, UV-stabilised HDPE base finished with a waterproof coated face. The result is a single material that blocks 100% of direct sunlight and sheds rainwater — the reason it has become the default choice for car park shades and carports across Nairobi, Rongai, Karen, Kiserian and Ngong.
At 400 grams per square metre it is roughly three to four times the weight of a standard shade cloth. That extra mass buys three things that matter in Kenyan conditions: tear strength at the fixing points, resistance to the high-UV load at Nairobi's 1,700 m altitude, and enough stiffness that a properly tensioned roof does not drum or flap in Rongai's afternoon winds.
Supplied as a single continuous 50-metre roll, 3 metres wide, giving 150 m² of usable fabric. The 3 m width suits typical car-park bay spans and pergola bays with minimal wastage, and panels can be run side by side with a down-slope overlap for wider structures.
Total sun blockout
100% shade factor stops direct UV, protects vehicle paint and dashboards, and drops the temperature under the canopy noticeably compared with an open-weave net.
Sheds rain
The coated face turns the net into a rain roof. Install with a fall and water runs to the low edge instead of dripping through onto cars or seating.
UV stabilised
HDPE with UV inhibitors resists the embrittlement and colour fade that destroys untreated netting within a season or two at high altitude.
Cut without fraying
Lock-stitched construction means a clean cut edge does not unravel. Trim to size on site with a sharp blade or hot knife.
High tear strength
400 GSM carries tension across eyelets, purlins and cable runs far better than lightweight cloth, which is where most shade roofs fail first.
Cut lengths available
Need 12 m, 20 m or 35 m instead of a full roll? Ask at the counter — we cut to your measurement from the same roll.
Technical data sheet
| Specification | Value / Description |
|---|---|
| Product name | Waterproof Shade Net 100% — 400 GSM Green, 50 m × 3 m roll |
| Product code / SKU | SHK-SN-WP400-GRN-50X3 |
| Base material | Virgin high-density polyethylene (HDPE) monofilament and tape yarn |
| Surface finish | Waterproof polymer coating / lamination on the exposed face |
| Construction | Warp-knitted, lock-stitched (does not unravel when cut) |
| Fabric weight (GSM) | 400 g/m² ± 5% |
| Shade factor | 100% — full blackout, no light penetration |
| Water resistance | Waterproof — sheds rainwater when installed on a fall; not intended as a ponding-water membrane |
| Roll width | 3 metres (3,000 mm) |
| Roll length | 50 metres |
| Coverage per roll | 150 m² gross (allow 5–10% for hems, overlaps and tensioning) |
| Approximate roll weight | ≈ 60 kg (400 g/m² × 150 m²) |
| Colour | Green (black also stocked — ask at the counter) |
| UV protection | UV-stabilised with UV inhibitors added at extrusion stage |
| Expected service life | Typically 5–10 years outdoors in Kenyan conditions when correctly tensioned and drained |
| Operating temperature range | Approx. −30 °C to +80 °C |
| Chemical resistance | Resistant to rot, mildew, most agricultural chemicals, salt air and mild acids/alkalis |
| Edge finish | Selvedge edges; reinforced hems and brass eyelets available as a fabrication extra |
| Fixing methods | Shade-net clips, UV polyester thread stitching, batten and screw, cable ties, wire lacing, heat welding |
| Recommended roof fall | Minimum 10–15° (approx. 1:6 to 1:4) so water discharges instead of ponding |
| Fire performance | Standard grade is not fire-retardant — request FR-treated fabric if a fire rating is specified |
| Recyclability | HDPE — recyclable at end of life |
| Packaging | Single continuous roll, wrapped, on a core |
| Origin / availability | Imported; held in stock at Shabbiri Hardware Rongai and Tuala branches |
Figures are typical manufacturing values for this grade and are given for design guidance. For a structural or tender specification, request the current mill test certificate before ordering.
400 GSM waterproof vs 70% and 90% shade nets
| Feature | 70% Green Net | 90% Net | 400 GSM Waterproof (this product) |
|---|---|---|---|
| Shade factor | 70% | 90% | 100% blackout |
| Typical weight | ≈ 80–120 g/m² | ≈ 130–180 g/m² | 400 g/m² |
| Keeps rain out | No | No | Yes |
| Airflow through fabric | High | Moderate | None — design for edge ventilation |
| Best for | Nurseries, seedlings, crop shading | Privacy screens, site hoarding, poultry | Car park shades, carports, patios, walkways, all-weather cover |
| Wind load on structure | Low | Medium | High — needs a properly braced frame |
Because a 100% waterproof net passes no air, it transfers far more wind load into the frame than an open-knit net. Size posts, purlins and footings accordingly — this is the single most common cause of shade-structure failure.
Applications for 100% waterproof shade netting
🚗 Car park shades & carports
Residential carports, apartment parking, office and mall car parks, church and school compounds, matatu and fleet yards. Keeps sun, rain, dust and bird droppings off vehicles.
🏠 Patios, pergolas & balconies
All-weather cover over outdoor seating, roof terraces and pergola frames so the space stays usable through the long rains.
🚶 Covered walkways
Linking blocks in schools, hospitals, hostels and estates — a dry route between buildings at a fraction of the cost of steel sheeting.
🔥 Hospitality & events
Restaurant terraces, beer gardens, car wash bays, market stalls, exhibition and event canopies.
🐓 Livestock & poultry
Rain-proof shelter roofs and side curtains for poultry runs, calf pens, kennels and feed stores where an open net would let rain in.
🛠 Construction & storage
Site screening, dust containment, temporary material covers, drying yards and blackout curtaining for mushroom or seedling houses.
Step-by-step installation guide
A waterproof shade net is only as good as its frame and its tension. Work through these steps in order — most premature failures come from skipping step 2 or step 4.
Measure the area and set out the panels
Measure the structure and divide it into 3 m wide runs to match the roll width. Add 150 mm at each end for wrapping and fixing, and 100–150 mm for every side-by-side overlap. Example: a 9 m × 6 m car park needs three panels of 3 m × 6.3 m — about 19 m off the roll, plus overlaps.
Build a frame with a proper fall
Set the frame so the finished surface slopes at at least 10–15° in one direction (a mono-pitch), or as a hip/pyramid draining to the edges. Water must always have somewhere to go. Use galvanised steel or treated timber posts on concrete footings; a 100% net catches wind like a sail, so brace the frame and do not undersize the posts.
Cut the net cleanly
Roll the net out flat on clean ground, mark with chalk and cut with a sharp utility blade against a straight edge. A hot knife or soldering iron seals the cut edge and is the better option on the coated face. Cut with the coated side facing up so you can see the finish, and keep the coated side outward (facing the sky) when you install.
Hem and reinforce the fixing points
Fold a 40–50 mm double hem along every edge that will carry tension and stitch it with UV-resistant polyester thread, or sandwich the edge between timber battens. Fit brass or stainless eyelets at 400–600 mm centres. Never run a bolt or hook straight through unreinforced fabric — it will tear out in the first storm.
Fix the high edge first, then tension down-slope
Attach the top (high) edge along its full length, then pull the net down toward the low edge and fix the two side edges working from the top down. Tension evenly and firmly — the surface should be drum-tight with no slack pockets. Slack fabric ponds water, flaps, and abrades itself apart.
Overlap panels the right way
Where two panels meet, lap the upper (higher) panel over the lower one by 100–150 mm so water runs across the joint, never into it. Stitch, heat-weld or clamp the overlap with a batten. Running the overlap the wrong way is the number-one cause of leaks.
Deal with the run-off
A 150 m² roof sheds a lot of water very quickly. Fit a gutter, a drip edge or a splash channel along the low edge, or aim discharge onto paving or a soakaway. Without this you will scour the ground and undermine your own footings.
Ventilate and finish
Because the fabric passes no air, leave an open gap at the eaves or a ridge vent so heat is not trapped under the canopy. Trim loose ends, seal every cut with a hot knife, and cap exposed bolt heads so they cannot chafe the fabric.
Re-tension and maintain
Check tension after the first two weeks — new fabric relaxes slightly — and then every six months. Wash with water and mild soap; never use solvents, bleach or a pressure washer at close range. Clear leaves and debris from the low edge so the run-off path stays open.
✅ Do
- Install the coated face upward, toward the sky.
- Keep a minimum 10–15° fall in one clear direction.
- Hem or batten every tensioned edge before fixing.
- Seal cut edges with a hot knife.
- Use UV-stable thread, clips, ties and eyelets only.
- Overlap panels down-slope, 100–150 mm.
- Re-tension after two weeks, then twice a year.
❌ Don't
- Don't install flat — ponding water will stretch and split the fabric.
- Don't bolt through bare fabric without reinforcement.
- Don't leave slack; flapping destroys a net faster than sunlight.
- Don't use ordinary cotton or nylon thread or non-UV cable ties.
- Don't drag the roll over rough concrete or rebar.
- Don't clean with thinner, petrol, bleach or a close-range jet wash.
- Don't undersize the frame — a 100% net carries full wind load.
Waterproof shade net — your questions answered
Is a 400 GSM shade net really 100% waterproof?
How much area does one 50m x 3m roll cover?
How many cars can one roll shade?
What is the difference between this and a 90% shade net?
How long will it last in Kenyan sun?
Can I cut it and join two pieces?
Does it come with eyelets?
Is green or black better?
Can I buy less than a full 50 m roll?
Do you deliver in Nairobi?
Where can I buy waterproof shade net in Ongata Rongai?
Other shade nets & privacy screens in stock
Visit Shabbiri Hardware — two branches on Magadi Road
Walk in for cut lengths, full rolls, eyelets, clips, UV thread and the galvanised sections for your frame — or call ahead and we will have it ready at the counter.
📍 Rongai Branch
Magadi Road, Ongata Rongai
Kajiado County, Nairobi Metropolitan, Kenya
🕑 Mon–Sat 7:30am–6:00pm • Sun 9:00am–2:00pm
📍 Tuala Branch
Tuala, past Africa Nazarene University
Magadi Road, Kajiado County, Kenya
🕑 Mon–Sat 7:30am–6:00pm • Sun 9:00am–2:00pm
Waterproof Shade Net 100% • 400 GSM Green • 50m × 3m — in stock at Rongai & Tuala
Specifications
| Model | WSN-100% |
| Category | Shade Nets |
| Availability | In stock |
| Sourced by | Shabbiri Hardware Kenya Limited |
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