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Glossary

Double glass

Window or door in which two panes of glass are used with a sealed air space between. Also known as […]

Glossary

Dormer

An opening in a sloping roof, the framing of which projects out to form a vertical wall suitable for windows

Glossary

Downspout

A pipe, usually of metal, for carrying rainwater down from the {roof}s horizontal gutters.

Glossary

Top soil

The surface layer of most of the low lying land in this country, which is most suited to building, consists

Glossary

Soils

Soil is the general term for the upper layer of the earth’s surface which consists of various combinations of particles

Glossary

Metamorphic rocks

Metamorphic rocks such as slates and schists are those changed from igneous, sedimentary or from soils into metamorphic by pressure

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Glossary

Sedimentary rocks

Sedimentary rocks, such as limestone and sandstone, are those formed gradually over thousands of years by the settlement of particles

Glossary

Igneous rocks

Igneous rocks, such as granite, dolerite and basalt, are those formed by the fusion of minerals under great heat and

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