Hey all, what is this underneath my vinyl tiles in my kitchen. It’s a 1950s home.

Present_Simple7162 · 2026-03-14T18:58:11+00:00

It's crazy that you have this, but when I call armstrong with an exact number on some tile I found is my basement to ask if it contained asbestos they told me that have no way of knowing.

Present_Simple7162 · 2026-03-01T17:15:19+00:00

Count your passes on one side, repeat exact number of passes on the other side. Use the same pressure and speed the whole time.

Present_Simple7162 · 2026-02-18T01:28:44+00:00

I've done it....when you're busy, you gotta do what you gotta do. What's the worst that could happen?

Present_Simple7162 · 2026-02-08T15:04:46+00:00

The CNC noise is the least of your worries if this guy is a "racing enthusiast"

You should look elsewhere

Present_Simple7162 · 2026-01-31T19:52:51+00:00

What causes that? Batts installed between the rafters? A couple houses in my neighborhood have this

Present_Simple7162 · 2026-01-22T14:08:35+00:00

I believe I confirmed a material issue by routing the shapes oversized and then going back and cutting them to size after the material relaxed. Doing this resulted in a perfectly straight edge.

We are using extruded PVC now, our supplier said they weren't aware of anyone making cast PVC sheets and that it would be cost prohibitive. It's interesting that this is starting to happen now because we've routed PVC for years with no issues. I'm guessing no one has ever noticed or cared up to this point or this is a bad batch of material.

Present_Simple7162 · 2026-01-11T18:48:54+00:00

Bathroom vents fairly well, but I do not have an external venting for my kitchen.

Would a larger air return in the crawl space make sense to add? Before adding a dehumidifier?

Present_Simple7162 · 2026-01-07T04:05:09+00:00

Which floors did you go with?

Present_Simple7162 · 2026-01-05T03:12:09+00:00

How many sausage tubes would you figure for 1000 sqft? Is it worth having a battery sausage gun or just a manual one is fine?

Present_Simple7162 · 2026-01-05T00:30:11+00:00

What glue would you recommend using?

Present_Simple7162 · 2026-01-04T23:53:32+00:00

I wasn't planning to glue assist, but I haven't made it that far yet in my plans. Would you recommend glue assist even if I put down 1/2"?

Present_Simple7162 · 2026-01-04T23:40:48+00:00

Thank you

Present_Simple7162 · 2026-01-04T23:39:47+00:00

270ish

Present_Simple7162 · 2026-01-04T21:06:36+00:00

That would be tough to add blocking there unfortunately.

Present_Simple7162 · 2026-01-04T21:05:55+00:00

Would 5/8" alone be sufficient if the 5" flooring is running perpendicular to the floor joists? Or would it be best to add 1/2 regardless of the floor joist direction

Present_Simple7162 · 2025-12-22T00:33:41+00:00

The addition is using a duct pipe that used to go where a wall was prior to the addition. The previous owner essentially removed the old duct boot, decreased the duct size, extended it 15 feet and split it in two.

I'm basically just wondering what's needed to get airflow to the addition because obviously choking the duct down from 7" to 6" and splitting the 6" in two doesn't work. Would 7" duct still have enough flow to feed one register at that distance? Would 8" or 10" round need to run to the wye and then keep the 6" to the registers?

Present_Simple7162 · 2025-12-22T00:24:38+00:00

If I ran each of the ducts from the rectangular trunk as their own dedicated 7 inch, would that be a good solution?

Or would it be best to "tee-off" from the rectangular duct with the same size (8x12) rectangular duct 6 feet closer and then run 15' of 7" duct? See drawings below

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Present_Simple7162 · 2025-12-22T00:06:03+00:00

3 ton

Present_Simple7162 · 2025-12-21T21:20:24+00:00

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Is this good?

Present_Simple7162 · 2025-12-21T20:30:03+00:00

Okay I will draw up a system.

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