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Search: Posts Made By: wwhitney
Forum: Tile Forum/Advice Board 08-06-2020, 10:51 PM
Replies: 26
Views: 471
Posted By wwhitney
So, my expectation matches yours, but I thought...

So, my expectation matches yours, but I thought I'd see what the APA has to say. Their publication Q225G, available from apawood.org with a free account, addresses the question.

It says that if...
Forum: Tile Forum/Advice Board 07-15-2020, 10:29 AM
Replies: 12
Views: 325
Posted By wwhitney
Sistering the middle 2/3 will improve the...

Sistering the middle 2/3 will improve the stiffness of the joist. That's good for a tile installation, as tile is brittle and excessive deflection will lead to tile system failure.

Sistering the...
Forum: Tile Forum/Advice Board 07-09-2020, 01:49 PM
Replies: 2
Views: 160
Posted By wwhitney
2x10s @ 16" o.c. can span a lot farther than 13'....

2x10s @ 16" o.c. can span a lot farther than 13'. So you have very strong and stiff floor framing (Deflecto says L/735 for SYP or DF in good condition, and that would be for a 50psf load).

Also,...
Forum: Tile Forum/Advice Board 06-21-2020, 01:48 PM
Replies: 1
Views: 110
Posted By wwhitney
Resilient to Wood Flooring Joint

Hello,

Not a tile question, but I expect there are lots of knowledgeable people here. Is there a nice looking, low profile way to make a transition (in a doorway) between resilient flooring...
Forum: Tile Forum/Advice Board 06-15-2020, 08:38 PM
Replies: 6
Views: 192
Posted By wwhitney
Thanks for confirming my background...

Thanks for confirming my background understanding. It sounds like the answers to my questions are:

1) Yes, some modifiers will cure very slowly due to captive water of placement between two...
Forum: Tile Forum/Advice Board 06-15-2020, 03:06 PM
Replies: 6
Views: 192
Posted By wwhitney
Different Modifiers Types in Thinset?

Hello,

My recollection from past reading here is that there are different types of modifiers used in thinsets, and that some modifiers will work fine between two impermeable surfaces. Whereas...
Forum: Tile Forum/Advice Board 06-02-2020, 09:00 AM
Replies: 4
Views: 245
Posted By wwhitney
Just a quick comment on trowel notch depth: ...

Just a quick comment on trowel notch depth:

Many trowels have a notch pattern where the teeth are the same area as the notches. In that case, if you held the trowel perpendicular to the substrate...
Forum: Tile Forum/Advice Board 05-18-2020, 09:55 PM
Replies: 2
Views: 170
Posted By wwhitney
Tub Surround with Schluter Movement Joints

Hello,

I have two tub/shower surrounds to tile this year. I'm intrigued by the idea of using Schluter's Movement Joints instead of caulk. Specifically DILEX-EKE for the vertical corners and...
Forum: Tile Forum/Advice Board 04-30-2020, 08:51 AM
Replies: 6
Views: 220
Posted By wwhitney
Someone else can comment on the plywood/subfloor...

Someone else can comment on the plywood/subfloor question.

But on the Deflecto question, what matters is the ratio (joist width)/(joist spacing). So you can use the Deflecto with 1.5" joist...
Forum: The Mud Box 04-03-2020, 09:01 PM
Replies: 13
Views: 453
Posted By wwhitney
Why not groove the three smooth doors so they all...

Why not groove the three smooth doors so they all match?

Cheers, Wayne
Forum: The Mud Box 12-31-2019, 03:10 PM
Replies: 17
Views: 813
Posted By wwhitney
Two comments: 1) The absence of year 0 is...

Two comments:

1) The absence of year 0 is traditional in current calendars, but is illogical. If you start counting up at, say, -5, you don't skip 0. So rather than letting this oversight screw...
Forum: Professionals' Hangout 12-16-2019, 11:15 AM
Replies: 30
Views: 3,671
Posted By wwhitney
FWIW, the installation instructions say it is...

FWIW, the installation instructions say it is both "ASTM C1288 Grade II" compliant and "ASTM C1325" compliant.

Cheers, Wayne
Forum: Tile Forum/Advice Board 12-03-2019, 03:09 PM
Replies: 2
Views: 199
Posted By wwhitney
I haven't thought about the implications of...

I haven't thought about the implications of having one out of three joists different from the others, nor about the detail you've described for notching the 2x10s over the sills. But I can tell you...
Forum: Tile Forum/Advice Board 09-22-2019, 09:53 PM
Replies: 25
Views: 1,192
Posted By wwhitney
BTW, you can use the Deflecto for a girder with a...

BTW, you can use the Deflecto for a girder with a little post processing.

What you want to enter is (3) 2x12s, so 4.5" wide by 11.25", with a 12' span (the girder span) and with a 11' 6" spacing...
Forum: Tile Forum/Advice Board 09-22-2019, 09:46 PM
Replies: 25
Views: 1,192
Posted By wwhitney
The first place to look is the prescriptive...

The first place to look is the prescriptive tables given in the International Residential Code. My state code is based on the 2015 IRC, and in it table R602.7(2) is titled Girder Spans and Header...
Forum: Tile Forum/Advice Board 09-22-2019, 02:33 PM
Replies: 25
Views: 1,192
Posted By wwhitney
Please check this info, as (2) 2x8s spanning 12'...

Please check this info, as (2) 2x8s spanning 12' is way less than what is required.

If you think about it, you have each single 2x8 joist carrying 11.5' x 16" of floor load. The beam is...
Forum: Tile Forum/Advice Board 09-22-2019, 01:25 PM
Replies: 25
Views: 1,192
Posted By wwhitney
Yes, the details on the beam construction are...

Yes, the details on the beam construction are important and need checking.

But the question was, the floor joists lap at the beam, so joists continue outside of the picture, off to the lower left,...
Forum: Tile Forum/Advice Board 09-22-2019, 10:52 AM
Replies: 25
Views: 1,192
Posted By wwhitney
What is the span on the side of the beam that is...

What is the span on the side of the beam that is not shown? Looks like the bathroom footprint extends 3' beyond the beam?

Cheers, Wayne
Forum: Tile Forum/Advice Board 09-01-2019, 11:06 AM
Replies: 6
Views: 358
Posted By wwhitney
Can you find grade stamps on the 2x10s and the...

Can you find grade stamps on the 2x10s and the LVLs?

Is there any additional framing to ensure that a load on a single 2x10 will also engage its neighboring LVL? If not, I would think the LVLs...
Forum: Tile Forum/Advice Board 08-27-2019, 01:48 PM
Replies: 14
Views: 597
Posted By wwhitney
FWIW, 2015 IRC allowable span for 40 psf live, 20...

FWIW, 2015 IRC allowable span for 40 psf live, 20 psf dead, and #2 DF-L 2x6 is 9'-3". That means infill 2x6s could run either way in a 7' x 7' room. But if you run them parallel to the existing...
Forum: Tile Forum/Advice Board 08-27-2019, 10:56 AM
Replies: 14
Views: 597
Posted By wwhitney
You have the right idea, and you shouldn't need...

You have the right idea, and you shouldn't need to add footings, as long as your existing footings are adequately sized and in good condition.

Blocking between joists doesn't help with joist...
Forum: Tile Forum/Advice Board 08-24-2019, 09:21 AM
Replies: 5
Views: 309
Posted By wwhitney
FWIW, if the design total load for the floor is...

FWIW, if the design total load for the floor is currently 50 psf (40 psf live plus 10 psf dead), then the current maximum moment demand on a joist is 2700 ft-lbs [0.5 * 9 * 9 * 50 * 16/12].

If...
Forum: Professionals' Hangout 07-19-2019, 05:35 PM
Replies: 41
Views: 4,361
Posted By wwhitney
Oh, OK. Drop ears come in PEX x FIP, copper x...

Oh, OK. Drop ears come in PEX x FIP, copper x FIP, and copper x copper, maybe other combinations. "Drop ear" just refers to the location of the mounting holes. You can also get a "high ear" elbow...
Forum: Professionals' Hangout 07-19-2019, 07:40 AM
Replies: 41
Views: 4,361
Posted By wwhitney
So what's wrong with using a (non-PEX) drop ear...

So what's wrong with using a (non-PEX) drop ear 90 on a tub spout?

Thanks,
Wayne
Forum: Tile Forum/Advice Board 06-19-2019, 10:06 AM
Replies: 46
Views: 2,119
Posted By wwhitney
Simpson Strong-Tie, at least, for 2x8 through...

Simpson Strong-Tie, at least, for 2x8 through 2x12 joists publishes allowable load values when using a hanger one size smaller than the joist.

Cheers, Wayne
Showing results 1 to 25 of 500

 
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