UNDERLAYMENT | Ask The Experts Forum | Metal Roofing Alliance

Guest User 10/25/2004	A NE W PRODUCT WHICH IS REFERRED TO AS BUBBLEWRAP HAS BEEN SUGGESTED INSTEAD OF 30 LB FELT. ANY PRO & CONS ? THIS IS ABOUT 1/4" THICK WITH SHINY SIDE UP AND DULL SIDE DOWN AND A MIDDLE OF A FOAM OR BUBBLE WRAP CONSISTENCY. IT COMES IN ROLLS OF 6'X100' AND COSTS ABOUT $150/ROLL.SUPPOSE TO HAVE ABOUT AN R10 FACTOR.WHAT DO YOU THINK?	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/4465/find/
Allan Reid Dura-Loc Roofing Systems, Inc. 10/25/2004	There are a number of these products out there and they do add some R value depending on the application. If it is a vaulted ceiling assembly then it helps as it reflects back in, however the top side is not effective reflecting heat out unless it has at least a 1" air space. In a vented attic, it has limited R value. The R value is calculated when you have no other insulation and when it is used as a top up, it contributes less. It also is more effective when the roof covering material has poor energy reflectance properties such as a black material.	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/4466/find/

Find a Contractor

Get Started Today

Take the first step to increasing the value of your home with a great looking, durable, fire resistant and energy efficient metal roof. Browse our list of qualified MRA Member Roofing Contractors in your area for a free consultation and estimate.

Search Now