Bitumen adheres to ___________.

Permeable concrete resulted from

Method of waterproofing wherein Sahara be added in mixing fresh concrete before concrete pouring to the second floor slab.

General part of the structure wherein considered as the shield against sun and rain

Most common length of ordinary corrugated sheet for roofing

Method of waterproofing wherein layers of waterproofing materials used like ordinary tar paper laid with coal-tar pitch to asbestos or asphalted felt.

Effective width of an ordinary corrugated roof

Clay materials for roofing (Undula)

Wood and tar materials for roofing

Roof element that covers the joining end of the 2-different slope of roofing sheet, and to be placed mostly in different roof apex

Other profile of metal roof aside from the corrugated form having a protruded upward part for the jointing and stiffener of the flat sheet roofing

Used on the joint of the side lapping end of two sheet roof to fill gaps against the entry of water.

A metal sheet bended roof accessories used to cover the upper roof end of the metal roofing to the wall

Horizontally laid metal bended accessories that collects rainwater from the roof