Bubbles in vinyl siding

[John Allingham]

Originally Posted by mlarson

Interesting topic.

I found this VIDEO that explains the problem and potential causes including reflective under coatings.

Excellent video. Thanks.

[lfoster]

How about the orientation of the sides affected to the sun? Always on South and West?

[David P. Valley]

Now I have the answer to my phenomenon.

I just did an inspection two days ago where 7 to 8 square feet of house siding (on the second level) was melted. I simply couldn't figure out how the siding (that high) could get melted.

Thanks for the info.

[Brian A. MacNeish]

Originally Posted by lfoster

How about the orientation of the sides affected to the sun? Always on South and West?

No! The distortion I saw was on the north side as the skylight reflecting the sun was on the south facing slope of the house next door.

[Jack Tanner]

Came across this yesterday, is it reflected heat, improper nailing, or heat from the fireplace itself?

[Nick Gromicko]

One reason fireplaces and space heaters are such poor sources of heat. In practical terms, this means that every time the distance is doubled, the heat intensity is decreased by on fourth.

it's actually decreased by three fourths or by a factor of four.

[mnahrgang]

Originally Posted by jtanner

Came across this yesterday, is it reflected heat, improper nailing, or heat from the fireplace itself?

I'm guessing reflected from the window right next to it...