Flat Roofs With Rocks On Top

Metal specifically aluminum is known for its durability.

Flat roofs with rocks on top. Have you ever wondered why contractors install gravel on flat roofs. Go for a more modern material like epdm membrane which can withstand sun rain and low temperatures. 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. 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.

Plus it has the added advantage of reflecting heat from the sun which keeps energy costs down. Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof. Talk to ten roofing contractors and you ll get ten answers on what the gravel is for but this seems to be the consensus. On many flat roof low slope commercial buildings it s common to see gravel on top of the roof.

Modified bitumen built up roofing. 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. Don t go thinking that modern houses with flat roofs only look good though as these innovative designs actually have practical properties as well.

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. 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. To weigh down or secure the. Metal is one of the most popular materials used for flat roof replacement.

Flat metal roofs can last for almost 35 years in ideal conditions. Tar has a low melting point. 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.

To protect the underlying layer of roofing materials as is the case with built up roofs burs. Epdm and neoprene roof seams are fastened by adhesive and pvc roof seams are heat or solvent welded.