How to Verify the Quality of Building Materials in Ghana

Using substandard building materials is one of the leading causes of structural failure in Ghana. As a contractor, knowing how to verify quality protects your reputation, your clients, and most importantly, lives.

Cement Quality Checks

Color: Good cement should be uniform grey. Avoid cement with lumps or discoloration.
Texture: Rub between your fingers — it should feel smooth, not gritty.
Date of manufacture: Cement loses strength over time. Use within 3 months of manufacture.
GSA certification: Look for the Ghana Standards Authority (GSA) mark on the bag.
Bag condition: Reject bags that are torn, wet, or show signs of hardening.

Steel Rod (Rebar) Quality

Markings: Check for manufacturer's stamp and size markings. Unmarked rods may be substandard.
Bend test: A quality 12mm rod should bend to 45° without cracking.
Rust: Surface rust is normal, but deep pitting or flaking indicates poor storage.
Weight: A standard 12mm × 12m rod should weigh approximately 10.7kg. Significantly lighter rods are likely undersize.
Certification: Ask for the mill certificate or test report from the manufacturer.

Roofing Sheets

Thickness: Standard roofing sheets should be 0.40mm–0.55mm. Thinner sheets may dent and leak.
Coating: For galvanized sheets, the zinc coating should be uniform. Bare spots will rust quickly.
Edges: Check for sharp, clean edges. Rough or uneven cuts suggest poor manufacturing.
Brand reputation: Stick to known brands like Aluworks, Rider, or B5 Plus.

Blocks

Dimensions: Standard blocks (150mm) should measure consistently. Irregular blocks make walls uneven.
Strength: Drop a block from waist height — it should not shatter or break into pieces.
Cure time: Good blocks have been cured for at least 14 days. Ask the block factory about their curing process.
Surface: Look for uniform texture and color. Smooth, consistent blocks indicate proper mixing.

How PrimeTijara Ensures Quality

Every supplier on our platform undergoes quality verification:

Report Quality Issues

If you receive substandard materials through PrimeTijara, report it immediately via WhatsApp. We take quality complaints seriously — every report is investigated within 24 hours, and affected items are replaced at no cost.