Table 3: Perceptions of manufacturers on barriers to the use of burnt clay bricks.

BarriersFrequencyPercentageRank

Quality of output (poor workmanship)444%6th
Low demand for burnt clay bricks778%3rd
Inappropriate use of burnt clay bricks in construction6675th
Limitation in design forms333%8th
Inadequate supply of clay11%11th
Structural problems333%8th
Excessive cost implications778%3rd
Noncompatibility with other materials222%10th
Transportation problems889%2nd
Constructability problems444%6th
Psychological problems333%8th
Unavailability of burnt clay bricks when needed9100%1st