Tuesday April 10, First day of Insulation Also

It was a busy day on Tuesday with large crew of Roofers and the spray foam insulation team also began work.  Johnnie Brown of ENERGY MASTERS and Ryan had a large trailer with lots of chemicals.

Getting this spray insulation done in the house to totally close off the envelope and seal all air leaks is going to be the biggest improvement to the energy efficiency of the house. 

Ryan had to totally suit up with a gas mask to try to keep the foam from sticking to him.  Looks like he missed his ear.  He got really hot up in that attic.

This is a great picture of the spray foam that has stuck to the attic rafters and the roof decking.  It is covering the 2x6 rafters entirely and down over the ends so that no thermal transfer can occur from the OSB or Metal Roof to the air in the envelope.  

You can't even see the bottom edges of the rafters.

This is the Solar Tub over the second bath.

The foam expands in about the first three seconds then doesn't expand any more.  This layer is applied to the Therma Ply backing which isn't much more than cardboard but it still allows the foam to build a 4-5 inch wall and drop down and cover the framing as well at the top of the wall.  This is still above the ceiling level.

Ryan did a good job of applying the foam so that it expanded to the right depth and even created a pretty pattern....not that anyone will see it but then you are looking at it aren't you?

Showing the thickness of the foam...which is at least 4.5 inches on this exterior wall over the back porch.

Ryan in his space suit.  I expected the chemicals to have a strong smell but they didn't.  Ryan also had to balance across the framing since there wasn't any decking on the attic. 

Notice on the top ridge, the foam not only covers the 2x6 boards (5.5 inches) but is also covering the bottom of the ridge board to what looks like about a depth of 2 to 3 inches.  Total foam: 8 inches.

On this picture you can see the outline of the rafters that have their bottom edges covered.