Flat Roofs With Rocks On Top

Plus it has the added advantage of reflecting heat from the sun which keeps energy costs down.

Flat roofs with rocks on top.

Don t go thinking that modern houses with flat roofs only look good though as these innovative designs actually have practical properties as well. For a start there are no tricky gable end spaces to try and navigate when opening up the upper levels in flat roof houses plus you can use the roof itself as an outdoor terrace which will be a. Modified bitumen built up roofing. Epdm and neoprene roof seams are fastened by adhesive and pvc roof seams are heat or solvent welded.

To weigh down or secure the. 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. Flat metal roofs can last for almost 35 years in ideal conditions. Many older style flat roofing systems are stuck in to place with bitumen and have gravel on top to protect the waterproof material from harsh uv sunlight.

Flat roofs usually come with a 10 to 20 year warranty but can last 25 years if you build the roofs right and maintain them using commonsense rules. Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof. There are two main types of burs or tar and gravel roofing systems modified bitumen roofs which are a mix of asphalt and rubber with a layer of gravel on top and ballast roofing which is a different style of larger gravel applied on top of a single ply roofing system. Gravel is used on flat roofs for two reasons.

Metal specifically aluminum is known for its durability. Membrane roofs are attached in a variety of ways. Pros and cons for flat roof materials all three types of flat roofing cost 250 to 350 per square 100 square feet but prices vary according to region and size of the roof. On many flat roof low slope commercial buildings it s common to see gravel on top of the roof.

Go for a more modern material like epdm membrane which can withstand sun rain and low temperatures. Talk to ten roofing contractors and you ll get ten answers on what the gravel is for but this seems to be the consensus. Yet for historic modern style buildings like this old house s cambridge tv project flat roofs are at the core of the architecture meant to reflect the broad horizontal lines of the natural landscape. Tar has a low melting point.

They can be partially loose laid and held down with river rock ballast requires roof structure to support the weight or fully adhered to the roof deck. Of course you don t need to live in a modern house to deal with a flat roof.