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They study technical math , blueprint reading , structural and decorative masonry , mortar preparation , and more . Construc-tion of the various exterior walls consisted of veneer brick over concrete masonry block ( CMU ) , all brick or CMU alone . Recycled steel framing and masonry , east-west orientation for passive solar benefits and natural daylighting , natural ventilation / operable windows , roof top photovoltaic panels to generate electricity , thermal mass in concrete floors , rainwater collection for irrigation , and nontoxic components in flooring and paints . Ritzman Lab is the white masonry block building on the right . Features - Both brick and masonry block walls can be either hand-laid or preassembled by machine . Masonry Block Noise Barriers - These barriers are " laid up " in a manner similar to ground-mounted masonry block barriers except that their anchorage is to the protective concrete bridge parapet wall , which usually has the same shape as the standard concrete traffic barrier walls , i.e ., Jersey barriers . Adults were trained to practice agriculture and trades , learning European methods in masonry , carpentry , iron work , weaving , dying , and ceramics . Usually the ancient enemies — the Jews , who refused to accept Muhammad as the final prophet — turn out to be behind Masonry , secularism , communism , and just about every godless evil . For example , the first two wall configurations may represent any masonry block wall insulated with rigid foam sheathing . If pits are used as collecting tanks , they shall be concrete , masonry , or other material having similar properties .