Grout at Hollow Metal Frames?
20 Mar 2019 21:19 #16
by IndianRM
Grout at Hollow Metal Frames? was created by IndianRM
I have always called for grout at hollow metal door frames in masonry walls. I am now not sure that they are required. Obviously, we sometimes have rated openings, non-rated openings, and acoustical criteria as well. The matter has now come up where we have a door frame straddling a masonry wall with a gypsum wall board partition furred onto the CMU. Therefore there may be concern for the moisture in the grout deteriorating the gypsum wallboard. Feedback?
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20 Mar 2019 21:48 - 20 Mar 2019 22:05 #20
by SteveB
Steve Behrens
https://www.commdoor.com/
Replied by SteveB on topic Grout at Hollow Metal Frames?
Grout at hollow metal door frames is NOT required. It's not a concern of the moisture in the grout deteriorating the drywall as it will go up after the mortar is dry and cured.
However, please see this information from the SDI (Steel Door Institute):
ANSI A250.8 (paragraph 4.2.2 - Page 18)
The Steel Door Institute does not recommend grouting of frames, since often contractors will mix the grout into a pumpable solution, as opposed to the optimal consistency which is hand troweled. Pumpable grout solutions contain too much moisture and can contribute to rusting of the frame from the inside out. It is also important to note that grouting of frames is NOT required for fire-rated frames.
When sound penetration is a concern, you can spray foam insulation in the back of the frame.
However, please see this information from the SDI (Steel Door Institute):
ANSI A250.8 (paragraph 4.2.2 - Page 18)
The Steel Door Institute does not recommend grouting of frames, since often contractors will mix the grout into a pumpable solution, as opposed to the optimal consistency which is hand troweled. Pumpable grout solutions contain too much moisture and can contribute to rusting of the frame from the inside out. It is also important to note that grouting of frames is NOT required for fire-rated frames.
When sound penetration is a concern, you can spray foam insulation in the back of the frame.
Steve Behrens
https://www.commdoor.com/
Last edit: 20 Mar 2019 22:05 by SteveB.
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20 Mar 2019 23:02 #25
by IndianRM
Replied by IndianRM on topic Grout at Hollow Metal Frames?
Good info. Thanks for letting me know.
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