Tar has a low melting point.
Why stones on flat roof.
In a typical tar and gravel roof which by the way is gradually being supplanted by gravelless roof systems you put down a layer of tar paper then tar and finally gravel.
A flat roof is water resistant so you do not have to worry about water damage.
The earliest roofs constructed by man were probably thatched roofs that were made of straw leaves.
To protect the underlying layer of roofing materials as is the case with built up roofs burs.
Have you ever wondered why contractors install gravel on flat roofs.
In the summer it gets pretty soft and if left to its own devices would flow to the lowest point on the roof.
To weigh down or secure the.
The risk of a fallout decreases when you opt for a.
Flat roofs are durable.
Commercial buildings generally have flat roofs.
On many flat roof low slope commercial buildings it s common to see gravel on top of the roof.
Flat roofs are an ancient form mostly used in arid climates and allow the roof space to be used as a living space or a living roof flat roofs or low slope roofs are also commonly found on commercial.
Roof covering of the top of a building serving to protect against rain snow sunlight wind and extremes of temperature roofs have been constructed in a wide variety of forms flat pitched vaulted domed or in combinations as dictated by technical economic or aesthetic considerations.
Gravel is used on flat roofs for two reasons.
The flat roof is commonly constructed in reinforced concrete flat stone supported on rolled steel joists r s j bricks tiled etc.
If durability is important to you then a flat roof is just the system for you.
The stones force it to stay put.