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Compared to conventional roof protection, which can have an aerial density of up to 450 kg/m 2, AMAP-R is very lightweight (Level 1 has an aerial density of only 25 kg/m 2, Level 1 and 2 together have an aerial density of 120 kg/m 2). The normal vehicle armour is overlaid by one or two layer of AMAP-R. Level 1 provides protection against ...
In the United Kingdom, after two significant construction fires which resulted in a combined loss of £1,500 million, The Joint Code of Practice was introduced by the Fire Protection Association (FPA), the UK's national fire safety organisation, [1] to prevent fires on buildings undergoing construction work.
It protects the roof deck from rain before the roofing is installed. It provides an extra weather barrier in case of blow offs or water penetration through the roofing or flashings. It protects the roofing from any resins that bleed out of the sheathing. It helps prevent unevenness in the roof sheathing from telegraphing through the shingles.
Thin-film solar is light weight at 2.1–3.1 kg/m 2 (7–10 oz/sq ft). Thin-film solar panels last 10–20 years [16] but have a quicker ROI than traditional solar panels. The metal roofs last 40–70 years before replacement compared to 12–20 years for an asphalt shingle roof. [17]
Awnings were first used by the ancient Egyptian and Syrian civilizations. They are described as "woven mats" that shaded market stalls and homes. A Roman poet Lucretius, in 50 BC, said "Linen-awning, stretched, over mighty theatres, gives forth at times, a cracking roar, when much 'tis beaten about, betwixt the poles and cross-beams".
Aerated concrete produced by the addition of an air-entraining agent to the concrete (or a lightweight aggregate such as expanded clay aggregate or cork granules and vermiculite) is sometimes called cellular concrete, lightweight aerated concrete, variable density concrete, Foam Concrete and lightweight or ultra-lightweight concrete, [18] [19 ...
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Ceramic armor is armor used by armored vehicles and in personal armor to resist projectile penetration through its high hardness and compressive strength. In its most basic form, it consists of two primary components: A ceramic layer on the outer surface, called the "strike face," backed up by a ductile fiber reinforced plastic composite or metal layer.