s Manfield Comforttherm formaldehyde free batt insulation

January 19, 2012

I just thought I'd post a follow up to the s Manfield Comforttherm product

that I posted a link to a couple weeks ago. It is wrapped in poly cover to cut

down on fiberglass dust. It looks in the pictures and in the description that

it is encased or encapsulated in poly wrap but in actual fact it is exposed at

both ends so not encased. They use the word encased or encapsulated and

pictures look like it is totally enclosed but it is cut at both ends of 8 ft

batts. There are pin holes in the wrap to allow it to breath and usually comes

w a vapor retarder on one side to be placed toward the interior of bldg.

Some points I found out through various attempts to use it are: you can use

only one layer of it because two layers would block the pin holes. If you need

more insulation than one layer, you have to use a fiberglass product as the

other layer, either blown in or unfaced batts. They said materials like

cellulose are too dense and would block the pin holes from breathing. The other

issue is that they said if there is two layers the vapor retarder must be the

first layer, next to interior wall or ceiling. Therefore the installation they

show in their own brochure featuring the product, can only be done this way in a

the few areas that they sell their product without a vapor retarder, just a few

southern states. Due to this, I have cancelled plans to use it in attic as the

point was to not have any exposed fiberglass and I have to use more than one

layer.

Asked about the brochure and they said it's being rolled over the top so it can

be featured. Just thought I'd pass this along. Seems like a nice product for

walls or under floor insulation but for attic it would have to be first layer

and blown in fiberglass over the top or batts and if you are going to do that,

seems you might as well do it all blown in or all batts.

Picture of installation, on 'installation' tab. They say 'not' to install it in

this way in most states! Seems they should put a note to that affect here. :

Recommended Posts