Parapet wall construction detail

What is parapet wall in construction?

A parapet is a barrier that is an extension of the wall at the edge of a roof, terrace, balcony, walkway or other structure. Parapets were originally used to defend buildings from military attack, but today they are primarily used as guard rails and to prevent the spread of fires.

Why do buildings have parapets?

Another purpose of parapets is to impede the spread of fire from one building to another by providing a barrier to fire and radiant heat transfer if fire breaks through the roof membrane.

How thick is a parapet wall?


How do you waterproof a parapet wall?

WATERPROOFING PARAPET WALLS STEP 1: Repair and fill any cracks with Polycell Ready Mixed Crack Filler or Polycell Masonry Patching Plaster. STEP 2: Prime the surface with Plascon Plaster Primer. STEP 3: Apply Plascon Multiseal with a Hamilton’s brush or roller and build up to a thickness of 1mm in 3 coats.

Why do you need a parapet wall?

Their major function today, aside from confusing architects, is to protect the edge of roof assemblies from wind uplift forces. Not so in the old days where they were useful in fire protection. Parapets dramatically reduce these pressure differences at roof edges (Figure 3).

What is the top of a wall called?

top plate

What is the minimum height of parapet wall?

30 inches

What is a trench parapet?

Parapets were important to frontline soldiers. Similar to a barricade, the parapet was the protective wall or earth defense along the top of a trench or other place of concealment for troops. The parapet was formed directly on the side facing the enemy.

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What is the material at the top of a parapet wall?

The top of a parapet wall is vulnerable to moisture penetration problems. Choosing an appropriate cap is an effective way to eliminate this condition. A variety of materials are available to cap off the wall, with limestone , terra cotta , hard-fired clay, or precast concrete preferred.

What is the standard height of a wall in the residential area?

Most builders will normally provide a 2.4m ceiling height as standard . However there are a lot of people who are willing to pay extra for a 2.55m, 2.7m, or even 3m ceilings.

What is bridge parapet?

BS EN 1317-1:1998 describes a Vehicle Parapet as a safety barrier that is installed on the edge of a bridge or on a retaining wall or similar structure where there is a vertical drop, and which may contain additional protection and restraint for pedestrians and other road users.