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Old 08-09-2011, 09:52 AM   #1
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Fastening Azek Trim


up to this point I have been using 4d 1-1/2" HOT DIPPED GALVANIZED FINISH to secure Azek to the framing of my porch project.


I've been hammering the nails and using a nail set, so a lot of the nails are not in all the way. Have been going back and doing that when time permits.

I did find these suggestions on another board. apparently they are from AZEK:

INSTALLATION GUIDELINES


Fastening

For best results, use fasteners designed for wood trim and wood siding (thinner shank, blunt point, full round head).
To take advantage of the performance of AZEK, use a highly durable fastener such as stainless steel or hot dipped galvanized.
Staples, small brads, and wire nails must not be used.
The fasteners should be long enough to penetrate the solid wood substrate a minimum of 11/2".
Standard nail guns work well with AZEK trim products.
Like wood, use 2 fasteners per every framing member for trimboard applications. Trimboards 12" or wider, as well as sheets, will require additional fasteners. See Figure 1 below.
Fasteners must be installed no more than 2" from the end of each board. See Figure 2 below.
AZEK should be fastened into a flat, solid substrate. Fastening AZEK into hollow or uneven areas must be avoided.
Pre-drilling is typically not required unless a large fastener is used or product is installed in low temperatures.
3/8" and 1/2" sheet product is not intended to be ripped into trim pieces. These profiles must be glued to a substrate and mechanically fastened.


I guess I need to go back and add longer fasteners.

Also, for the thin pieces of window trim that I have been adding, is there a low priced pneumatic gun that you can recommend to make this less tedious? Finding it especially hard to nail and set the overhead pieces. Would rather just shoot them in. I assume I would need a more powerful compressor and gun for the nails to secure the AZEK. Right?

as always, thanks!

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Old 08-09-2011, 09:13 PM   #2
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Fastening Azek Trim


I used trimhead stainless steel screws. Where the pieces contact one another, I use Azek adhesive.

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Old 08-09-2011, 09:46 PM   #3
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Fastening Azek Trim


thanks for the reply Ron,

on Azek, what do you fill the screw holes with? and what size? 1 5/8?
'

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Old 08-09-2011, 10:20 PM   #4
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Fastening Azek Trim


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Originally Posted by joetab24 View Post
thanks for the reply Ron,

on Azek, what do you fill the screw holes with? and what size? 1 5/8?
'
I used a 2" screw and set it below the surface the width of the head, I filled the holes with silicone caulk.
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Old 08-12-2011, 05:28 PM   #5
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Fastening Azek Trim


"I used a 2" screw and set it below the surface the width of the head, I filled the holes with silicone caulk."


Ron, or anyone else, will a screw every 18" or so be fine, for going into the porch framing? Not sure what the guidelines are.
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Old 08-12-2011, 06:26 PM   #6
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Fastening Azek Trim


http://www.azek.com/installation/trim/
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Old 08-12-2011, 06:37 PM   #7
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Fastening Azek Trim


thanks Ron, i did see those vids.

so "two fasteners for every framing member"? that didn't seem like enough.

i just started on the door section, obviously screwing into a vertical 2 X 4.
do you just add two screws and move on, or am I misunderstanding?
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Old 08-12-2011, 07:11 PM   #8
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Fastening Azek Trim


Two fasteners for every framing member means two fasteners every 16 or 24” depending on the framing layout.

On your verticals two fasteners every 2’ is fine.
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Old 08-12-2011, 07:17 PM   #9
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thanks, man. I appreciate all of the help!
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Old 08-12-2011, 10:35 PM   #10
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Fastening Azek Trim


use these and put the caulking gun down

http://www.osipro.com/products.pl?id=TEQFASTENERS
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Old 08-13-2011, 02:28 PM   #11
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Fastening Azek Trim


do you put the 2" SS screws at the end, where the joints overlap? I currently have 4D galvanized finish nails at these spots?

I've had a few of the SS screws strip on me. Using vice grips to get them out. Maybe 2 out of 15 or 20.
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Old 08-13-2011, 02:32 PM   #12
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Fastening Azek Trim


I just starting using the Fastenmaster version of these. Prior to these, I countersink screws and cut plugs with the scraps.

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use these and put the caulking gun down

http://www.osipro.com/products.pl?id=TEQFASTENERS
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Old 08-15-2011, 07:16 PM   #13
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Fastening Azek Trim


Ron,
do you put the 2" SS screws at the end, where the joints overlap? I currently have 4D galvanized finish nails at these spots? Wasn't sure if these screws at the ends of the board would cause problems. Thanks!

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Old 08-15-2011, 07:23 PM   #14
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Fastening Azek Trim


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Originally Posted by joetab24 View Post
Ron,
do you put the 2" SS screws at the end, where the joints overlap? I currently have 4D galvanized finish nails at these spots? Wasn't sure if these screws at the ends of the board would cause problems. Thanks!

The manufacturer advises you keep fasteners from the end of the board by 2". The stainless steel flathead trim screws will exert a bit of lateral pressure due to the countersinking. If you take the time to drill a pilot hole and the countersink, that lateral pressure will be omitted and you shouldn't have a problem with splitting at the ends.
This is a personal opinion.

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