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Cedar On A Ceiling

7/1/16       
Ray Member

Website: http://interiorfixtures.weebly.com

I will be installing red cedar on a ceiling 16' X 32' that has 2" of soft sound insulation that is attached to the bottom side on a metal grid system. The boards are 16' long and the sizes are 3/4" X 3/4", 1 1/2" X 1 1/2, and 1 1/2" X 2 1/2" with a 1 1/2" spacing that makes a random but repeating pattern. With no expose fasteners.
I tried rabbiting the top side of lumber 3/8 X 3/8 and use some power grab adhesive that would receive a same size stick but 8" long, with a screw in the middle of it. The pull out test was iffy.
I would like to find metal clips that would work.
Anybody suggestions?
They rejected holes and plugs but could have to live them.

7/2/16       #2: Cedar On A Ceiling ...
james mcgrew Member

I would call Kip Porter at Star Hanger, Man is a genius in Fastening architectural work

http://starhanger.com

7/3/16       #3: Cedar On A Ceiling ...
TonyF

Ray:

Would it be possible to fasten some 1/2" plywood to the ceiling, and then it may be easier to fasten the cedar to the plywood?

16 sheets of plywood could be an inexpensive cure. Does any of this material need to be fire-rated?

TonyF

7/3/16       #4: Cedar On A Ceiling ...
Ray Member

Tony
That is something I haven't considered. The 2" insulation is attached to the grid by
clips. I will ask if the clips would work with
with plywood. Yes this needs to be fire rated blocking.

7/3/16       #5: Cedar On A Ceiling ...
james mcgrew Member

Use fire rated Ply wood adn cut strips where needed, no need to cover entire cieling it is blocking,, or go straight to studs, it is cedar floor plank right ?

7/3/16       #6: Cedar On A Ceiling ...
Ray Member

James
This is lumber of 3 different sizes with spacing between each board. The largest is 1 1/2 X 2 1/2 some are laid flat and some on edge. The 2 1/2" plus the 2" would require a 5" screw. Plywood strips or 2 X 4 blocking might work. Cut sheets attached.
Plugs and screws will be a hard sell.

Click the link below to download the file included with this post.

USG_Drywall_Suspension_System.pdf



Click the link below to download the file included with this post.

USG_Drywall_Suspension_System_2.pdf

7/4/16       #7: Cedar On A Ceiling ...
Adam

The simplest easiest way would be to fasten 1/2" plywood or 1/2" osb to the whole ceiling.

Then you can toe screw any of those pieces of wood to the ply.

I would not consider doing this job on a contract basis. T&M only or they can find somebody else.

7/5/16       #8: Cedar On A Ceiling ...
Pat Gilbert

This is for a ceiling, right? There are no studs in a ceiling.

7/6/16       #9: Cedar On A Ceiling ...
Mark  Member

+1 on screwing ply to the ceiling; use self tapping tek screws w/wafer heads. Since the ceiling is suspended I'd check with the contractor/architect/engineer to be sure the system can carry the weight of fire rated ply.
Then paint the background, adhesive & trim screws to apply.

7/6/16       #10: Cedar On A Ceiling ...
TonyF

Ray:

Mark makes good points about painting the background, for uniformity and possibly for contrast, and determining if the suspended ceiling infrastructure will hold the weight of the plywood. You should also consider the combined weight of the plywood and the cedar.

If the weight capacity allows you to use the plywood, one thing that you might try is to channel or rabbet the cedar, much as you tried before, except now you can pin the glue strips to the plywood.

You could fasten these glue strips prior to securing the plywood to the ceiling, allowing you to register the spacing you need for the cedar pattern with the glue strips, making the installation of the cedar E-Z.

Not sure of the finish requirements, but with glue strips in place, you may be able to pin the cedar in place through the face with a 23 gauge Grex pin nailer, which would almost defy detection from the floor, or through the sides of the cedar with a nail gun if the spacing between the cedar does not allow a full-on view of the cedar sides.

Good luck.
TonyF

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