Advantages 4 A/ O `5 s8 W+ m6 A$ XVery durable in cold weather- f& S0 ^* g" J7 I: r
High percentage of recycled material and are 100% recyclable 8 z& d: R2 ]" N6 x' S2 W! FDisadvantages4 |* P( U+ x* r( G8 b5 A4 U
Rusting (require maintenance to prevent corrosion)( n1 `7 n5 ?4 U
Copper and lead roofs can be targeted by metal thieves 5 u' n- e7 _$ S9 v& R; U3 YHigh heat conductivity of metals (particularly copper and aluminum) requires careful incorporation of insulation into the roof structure X) B+ ^8 F1 S# Q, h0 I
Cellular and radio reception may be negatively impacted
Metal roof ??0 l+ }5 E5 d- O8 t( B
what's going to happen in a hail storm, will it be very loud ???) n6 K$ f% F: b" T n% \% p/ g
Summer raining season, if it rains in night, people can sleep well ???
icing 发表于 2014-6-7 21:36 . `# U( M0 L9 r+ v, M
Metal roof ??- l/ q6 r$ q( y6 K
what's going to happen in a hail storm, will it be very loud ??? . ~1 |& G8 c$ vSummer raining seas ...
icing 发表于 2014-6-7 22:36 6 A/ I' k+ T/ S0 f; F
Metal roof ?? ) P& v# ^ O4 t/ b# j2 m" Qwhat's going to happen in a hail storm, will it be very loud ??? $ W w# b5 J" q) N- {+ mSummer raining seas ...
% ^; Q8 O# v, U Dthat is not my major concern, the hail won't last long, but other issues bother me such as cell signals, conductivity, etc.