頂樓隔熱

 
Metal benchesintered metals are used for many purposes， the most notable ones beingpowder metal for outdoor use。 Nevertheless， most people wonder how the benches cope with the extreme weather changes if they are left in the open。 What anyone ought to know is that metal benches used are mostly coated so that they do not rust， or get corroded。 Some benches are coated using powder metal， and this may be in form of zinc， or aluminum。 The other form of coating that is convenient and effective is by use plastics。 Plastic coated metal benches are available in several designs。 One good thing about metal benches coated with plastic is that they have smooth and rolled edges， so that they look comfortable and inviting， even before you sit on them。 If a bench was made ofsintered metal plain metal sheets， chances are that they would collect rainwater every time it rains。 However， when they are coated with plastics， benches made out of metal can be slatted or even perforated in order to filter rainwater or debris。

This has made plastic coated benches popular with parks， as they are easier to manage。 They are also available in different colors。 Metal benches can also be coated with concrete， to come up with some of the most durable benches。 Such benches are common in museums， malls and schools， and this is because they can withstand all weather at any time of the year。 Benches coated with concrete do not need any maintenance， and are cost effective。 Well， the next time you go looking for a bench， inquire from the dealer whether it it is coated， and what material has been used to coat it。 Coated benches will with no doubt serve you for a long time， and you can be sure that you will not have to be moving them each time it rains。