February 14, 2012

Shousetsu Sheet/消雪シート

Let me provide some information about Shousetsu Sheet. Shousetsu (Snow Melting) Sheet is a product of Patedison Co., Ltd.

Here is a flyer of Shousetsu Sheet:
The flyer says, "The standard amount of water to sprinkle is about 300 cc per square meter, which is about one-tenth of the amount for the conventional "water-flowing" roof".
The roof snow melting system comprises three genuine parts, Shousetsu Sheet, flow divider, and valve stem, and general-purpose parts such as valves and PVC pipes.
Valve stems are mounted in the PVC pipe.

A valve stem:
I had my house built in the fall of 2005, and had the Shousetsu Sheet roof snow melting system installed in the following year, 2006.
Now the Sheet gathers moss, as you can see in the photo below.
Depending on who you are, you may like the sight. As for me, I hate it.

This video will show you how the system works.
At a rough estimate, the water flow rate in this particular video is 700-900 cc per square meter.
大まかにいって、このビデオでの流量は約700~900 cc/m2です。

If you have any questions about Shousetsu Sheet, feel free to ask.

To make a long story short, I don't think Shousetsu Sheet is worth the money I paid.


Stacy said...

I find such snow removal devices interesting, especially the water system to remove snow from the road. As I've siad many times, I live in Canada so I feel that as Canadians we have learned to live with the snow. (and adapted building structures accordingly)

Although this year we've had very little snow so far!

Hiroyuki said...

Stacy: The system you mentioned, shousetsu pipe, was first installed in Nagaoka, Niigata, in 1961.

The first consideration you have to make when building a house here in this snowy region is how to deal with the snow in the wintertime.