Questions and Answers for Owens Corning Raft-R-Mate 22-1/2 in. x 4 ft. Attic Insulation Rafter Baffle Proper Vents (10-Pieces)

A:  Hello Kevin, The Raft-R-Mate can be snapped along the perforation to be used in 16" oc center framing. Snapped in half the Raft-R-Mate will provide 11.15 square inch of NFVA. Thank you for your inquiry!

A:  Hello AverageHomeowner, Intent of the baffle is to prevent insulation from blocking the air space against the roof deck. The baffle should attach to the top plate to keep air from the soffit infiltrating the insulation. Batt insulation can be used to block the outer edges at the soffit. If this is an attic then the baffles only need to be in place where necessary to keep the insulation out of the ventilation space -typically 1 or 2 baffles. If a cathedral ceiling then the baffle should end about 2” short of the slot cut for the ridge vent. Also, if running multiple baffles up the roof deck, space them about ¾” apart. Thank you for your inquiry!

A:  Hello Trillium, We are not aware of any warping complaints with Raft-R-Mate. It is an XPS foam baffle which is a different material than Accuvent. Thank you for your inquiry!

A:  I'm not familiar with the Accuvent product but I can say that after 2 yrs. in Florida heat my Raftermates are performing well.

A:  Hello LenDIY, the Raft-R-Mate is designed to assure unrestricted airflow from the soffit to the ridge vent by providing an air space between the insulation and the roof deck. If there is ventilation and loosefill insulation is being installed it would be recommended to use Raft-R-Mates. Thank you for your inquiry!

A:  Hello Lerch, we do not recommend using the Raft-R-Mate Attic Baffle with spray foam. As the spray foam expands it can damage the Raft-R-Mate. Thank you for your inquiry!

A:  Yes. I filled any gaps with spray foam 2 yrs ago with success.

A:  Hello Kevin of the mtns, the Raft-R-Mates are perforated in the middle to be split in two. The split width is 11.25". Thank you for your inquiry!

A:  Hello Darinj, for trusses that are 4' oc, two Raft-R-Mates could be used side by side. You will need to verify a 1” depth is sufficient for the length of roof from soffit to ridge. Thank you for your inquiry!

A:  Hello Keith, One inch below joists will not be a concern if you are laying insulation perpendicular. Allow insulation to “settle” down between the joists- do not pull insulation you are adding tight. Thank you for your inquiry!

A:  Hello Kathy, Intent of Raft-R-Mate is to keep insulation out of the ventilation space. Meaning the insulation will at least partially keep the Raft-R-Mate in place. The rest of the Raft-R-Mate may be held by wire ties. Adhesive may not be a great option due to potential for elevated temperatures at the roof deck. Thank you for your inquiry!

A:  Hello Joe, The Raft-R-Mates can be used in retrofit applications also. However, the lower the slope of the roof, the more difficult it will be to get back there and add the Raft-R-Mates. Make sure you use caution, using a piece of OSB to bridge the joist may make it easier and safer. Thank you for your inquiry!