If you are planning an awning for a car porch, drying yard or house front in Kuala Lumpur or Selangor, the material choice usually comes down to three options: polycarbonate, metal deck or aluminium composite panel (ACP). All three are widely installed on Malaysian homes, but they behave differently under tropical sun, heavy rain and humidity.
This guide compares the three honestly — light, heat, rain noise, maintenance and cost factors — so you can shortlist the right material before requesting a quotation. KL Servis Rumah installs custom awning systems across KL & Selangor in all three materials, and every project is measured and quoted individually.
Quick answer
- Polycarbonate — translucent sheeting that lets natural light through. The usual choice when you want shade and rain cover without darkening the area: car porches, drying yards and walkways.
- Metal deck — profiled steel sheeting that is strong and economical, with insulated profiles available to cut heat and rain noise. A practical pick for utility areas and porches where full shade is acceptable.
- ACP — rigid aluminium-faced panels with a clean, opaque, modern look and the lowest maintenance of the three. Popular for car porches and house fronts where appearance matters.
What each material is
Polycarbonate
Polycarbonate is translucent plastic-sheet roofing available in clear, tinted or bronze profiles, including twin-wall and multi-wall options. It is lightweight and light-letting, which is why it is one of the most common car-porch awning materials in Malaysia: the covered area stays bright while rain and direct sun are kept off the car. Tinted and bronze profiles reduce glare and heat gain, while clear sheets keep the area brightest. See our polycarbonate awning page for details.
Metal deck
Metal deck is corrugated or profiled metal-sheet roofing, usually steel. It is strong and economical, and suits utility areas, drying yards, porches and workshops. Insulated profiles with a foam layer are available to reduce heat and rain noise. Because it is steel, the sheet edges, fasteners and frame need proper anti-rust primer and finishing to hold up in our humidity. Details are on the metal deck awning page.
Aluminium composite panel (ACP)
ACP awnings use rigid aluminium-faced panels that give a clean, modern, opaque finish. The panels block glare and heat well, are quieter in rain than thin metal sheet, and do not rust — so maintenance is very low. ACP is popular for porches and house fronts where a neat look matters; the panels are rigid but still need correct support to span without sagging. See the ACP awning page.
Side-by-side comparison
| Aspect | Polycarbonate | Metal deck | ACP |
|---|---|---|---|
| Light | Translucent — area stays bright | Opaque — area is fully shaded | Opaque — area is fully shaded |
| Heat | Tinted profiles reduce heat gain; clear sheets transmit more | Plain sheet conducts heat; insulated profiles reduce it | Blocks glare and heat well |
| Rain noise | Moderate | Plain sheet can be loud; insulated profiles are quieter | Quieter than thin metal sheet |
| Maintenance | Low — periodic washing, keep sheets and gutters clear of debris | Medium — check and treat rust points on steel parts | Very low — occasional wash; panels do not rust |
| Typical use | Car porch, drying yard, walkway, balcony | Utility area, drying yard, porch, workshop | Car porch, house front, patio, yard |
General guidance for KL & Selangor conditions — actual performance depends on product grade, installation quality and maintenance.
Heat and light: how they differ
The biggest practical difference between the three materials is what happens under the sheet.
Polycarbonate is translucent. Clear profiles keep the porch or yard almost as bright as open air, which is why many homeowners like it over entrances and windows. The trade-off is that clear sheet also transmits more heat and light, so if heat build-up is your main concern, tinted or bronze profiles are the better pick — they reduce glare and heat gain while still letting some daylight through.
Metal deck and ACP are opaque. Under a plain metal-deck sheet the area is fully shaded and noticeably dimmer, and plain sheet conducts heat downwards — worth knowing for a car porch or a drying yard you stand in. Insulated metal-deck profiles add a foam layer that reduces both the heat and the drumming noise of heavy rain. ACP panels block glare and heat well and give a clean, uniform look from below and from the street.
There is no single "coolest" material independent of design — orientation, ventilation, span and sheet profile all matter — but as a rule: full shade and heat blocking point to ACP or insulated metal deck, while brightness points to polycarbonate.
Rain noise
Rain noise decides how comfortable a covered porch or yard is during a Klang Valley downpour. Plain thin metal sheet is the loudest option — heavy rain drumming on a single-skin roof is loud enough to make conversation difficult. Insulated metal-deck profiles quieten this substantially. ACP is quieter than thin sheet. Polycarbonate sits in between; twin-wall profiles also help dampen the sound.
If the awning sits over a seating area rather than a parking bay, factor noise into the material choice rather than only price.
Maintenance in Malaysian weather
All three materials are low-maintenance, but not maintenance-free:
- Polycarbonate — wash periodically and keep leaves and debris off the sheets and gutters; avoid abrasive scrubbing that can scratch the surface.
- Metal deck — the sheet itself is tough, but steel parts (edges, screws, flashings and the frame) should be checked for rust spots and treated early. This is also why our frames are fabricated with anti-rust primer and a weather-resistant or powder-coat finish — see our welding and metal fabrication service.
- ACP — occasional washing is all the panels need; they do not rust.
In all cases, the parts that usually fail first are not the roofing sheets but the joints, sealants, fasteners and drainage — so clearing gutters and checking that water still runs off freely matters more than the choice between the three materials.
Which awning material should you choose?
Use this checklist to shortlist before you ask for a quote:
- Want the area bright (entrance, window, walkway) → polycarbonate, clear or tinted.
- Want maximum heat and glare blocking (west-facing porch, afternoon sun) → ACP or insulated metal deck.
- Covering a utility or drying area where looks matter less → metal deck.
- Want the neatest modern look for a house front → ACP.
- Noise-sensitive spot (seating area, next to a bedroom window) → ACP or insulated metal deck over plain sheet.
- Frame must carry a wide span → discuss frame gauge and support with us; the frame, not the sheet, usually determines what is structurally possible.
For car porches specifically, tinted polycarbonate, ACP and insulated metal deck are the three most common choices because they reduce heat build-up over the vehicle — our car porch awning page covers the drainage and clearance details.
What affects the price of an awning
KL Servis Rumah publishes minimum starting prices for every awning scope — small awnings from RM 380, material rates from RM 18–60 per square foot depending on the material, and outdoor roller blinds from RM 15 per square foot — but the final figure is confirmed per project, because every site differs. The main cost factors are:
- Width, projection and total covered area
- Roofing material and the sheet or panel profile (tint, twin-wall, insulated)
- Frame material and gauge (mild steel, aluminium or stainless) and its finish
- Height, access and installation complexity
- Existing structure and whether reinforcement is needed
- Drainage requirements — gutters, downpipes, flashings and sealants
- Removal and disposal of an old awning, where required
- Colour, custom design and any strata or local-authority specifications
The most useful information to send for a quotation is your location, photos of the site and fixing points, approximate width and projection, your preferred material or look, whether an old awning needs removal, and any management rules that apply.
Frequently asked questions
Which awning material is the cheapest?
There is no fixed ranking — the cost of an awning depends on the covered area, sheet or panel profile, frame gauge, access and drainage, not just the material name. A project-specific, itemised quotation is the only reliable way to compare prices for your site.
Which material is best for a car porch in Malaysia?
For car porches, tinted polycarbonate, ACP and insulated metal deck are the most common choices because they reduce heat build-up over the vehicle. Clear polycarbonate keeps the porch brightest but transmits more heat; ACP gives the cleanest look with the least maintenance.
Can I get a recommendation before committing to a material?
Yes. Send photos of your porch or yard with rough dimensions on WhatsApp. For straightforward projects that is often enough to quote; where the span, fixing points or drainage need checking, a site assessment is arranged before the design is finalised.
Get a material recommendation and quote
Tell us where the awning will go and what bothers you most — heat, rain, light or noise — and we will recommend the material that fits your site and prepare an itemised, project-specific quotation. Chat with our team on WhatsApp