Questions tagged [materials]

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2answers
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How effective are DIN 985 self-locking nuts?

They're DIN 985 self-locking nuts that have a plastic ring inside that is meant to cause extra friction and prevent self-loosening of the nut. How effective are they against self-loosening?
3
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3answers
202 views

What is this roof constructed from?

I am trying to answer questions about the construction of a roof and was wondering if it is possible to tell from the picture attached, and if so what the construction is? EDIT: The roof is difficult ...
1
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4answers
82 views

What type of string lasts in strong UV and pool environment?

I need to use a string near or in a pool for one summer. It has to last strong summer heat (TX), sun, UV rays, and pool chlorine. My chlorine dispenser float keeps going next to the skimmer area. Some ...
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1answer
69 views

How to avoid mouldy properties?

I've been wondering if there is any way to recognise materials/home designs which may mean the growth of mould in a house? For normal properties, simply opening the window during a shower prevents ...
7
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6answers
25k views

How to prevent mold in stored joint compound

Joint compound comes in larger containers than I need. I have had this problem for years where storing opened but unused joint compound leads to mold growth, usually starting within a week or two. I'd ...
2
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1answer
160 views

What are these very heavy blocks found on my family's property?

I need help identifying these blocks found on my family's property, which was a 17th century farm house in Virginia. The blocks are 8.75" long, 4.5" wide, and 5" high and weigh 58 lbs.
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1answer
36 views

Is it feasible to still have wooden elements with possible termite threat

I'm planning on getting a house built and I would like to incorporate a good amount of wooden elements similar to japanese house designs but I'm worried of possible termite infestation. Is it feasible ...
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1answer
61 views

Is screw/nut zinc vs zinc plating as advertise or a manufacturer shorthand?

I bought a set of machine screws and nuts which say "zinc" on the product. I also bought a box of locknuts from a different manufacturer which says "zinc plated" on it. Is the box ...
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0answers
24 views

What is this floor material consisting of soft fibrous material covered by matte black layer?

We are renovating an apartment in a house in Germany built in 1957. I am unsure what kind of floor construction I am looking at. The concrete floor is covered by a soft brown fibrous layer about 1.5 ...
0
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2answers
111 views

Cedar shims disappeared because of COVID-19

I've been hunting for contractor quality cedar shims - the super-wide kind that easily break along the grain. The big box stores don't have them and neither do the local lumber yards. At one of them I ...
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2answers
99 views

Can a triple stud be replaced with a thinner, stronger material?

We have a galley kitchen and our fridge takes up a lot of room when the door is open. I'd like to recess it back into the wall using some empty space in the dining room directly behind it. However ...
1
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1answer
108 views

Are there screws made of materials that should not be exposed to heat, smoke or propane?

I've been assembling a propane barbeque grill that came in a box. It came with an exact variety and number of screws to be used in assembly. But it's actually missing one screw. I found an old screw ...
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2answers
923 views

Is there a dust-free alternative to gravel for an indoor Petanque Court?

We are considering constructing a Pétanque court in our office. The typical finished playing surface is sand, gravel, small pebbles or sometimes shell. We need a dust-free material so that when ...
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1answer
45 views

2a modified crushed stone vs minus gravel

What is the difference between 2a modified crushed stone and minus gravel? I understand that both are crushed stones and both have finer particles. Do they come from different species of stones? What ...
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2answers
72 views

Are there any new and/or innovative quality countertop products on the market? [closed]

Are there any new and/or innovative quality countertop products on the market that are easier to work with and not as heavy as quartz? For example, something like NSF certified "richlite" ...
0
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1answer
44 views

Which material for a sink bucket? [closed]

I'm thinking about making a small sink for my DIY lab. Since there is no running water or drain, I was thinking about something similar to a camping sink like this one. I'd make some modifications (e....
2
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4answers
57k views

Is it OK for OSB3 boards to get wet during construction?

In the UK it rains, as you know. a lot. Is it OK for OSB3 boarding to get wet now and then during the construction of a building? or will it be completely destroyed like chip board or MDF (which ...
1
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1answer
79 views

What type of insulation/sheathing material is this?

I have a house that was originally built in Chicago in 1954 that had an addition put on in the 90's. The original roof and part of the original exterior was built over is now visible in the attic of ...
0
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1answer
34 views

Safe wrapping for fiberglass around pipes?

If I wrap pipes with fiberglass for insulation but I'm worried about the health risks of exposed fiberglass, is there something that I could wrap around the fiberglass? If so, what and why?
0
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1answer
37 views

Using radiant barrier to keep a room warm [closed]

I have been told (including in comments by awesome user Unslander Monica) that a foil sheet placed on the interior side of an air-sealed window can help prevent radiative heat loss through that window....
0
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1answer
35 views

Window film affixed to the wall around a window?

Useful related questions: here, here. I live in an apartment with a window that I want to insulate during the winter. I am currently using one of those shrink film kits and it seems to be working. ...
0
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2answers
125 views

Deck the halls with bubble wrap?

In order to insulate a room, would it make sense to apply a layer of bubble wrap to my walls/ceiling? What about some other material like mylar or foylon? What major factors would affect the answer to ...
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0answers
11 views

Impact of small gaps in insulation on conductive and radiative heat loss?

When insulating a room , what is the effect of small gaps in the insulation on the degree of conductive heat loss? On radiative heat loss? What other major factors affect the answer? (I presume that ...
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0answers
20 views

Wool batting window quilt? [duplicate]

Would it make sense to use wool batting like this as a window quilt? Why or why not? What factors would affect its suitability? For context, I propose using this on the inside of one of those shrink ...
0
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1answer
52 views

Aerogel winter window quilt?

Would it possibly make sense for me to use aerogel as a seasonal window quilt? It may depend critically on some other factors; if so, what are they? In particular, I have heard that aerogel designed ...
0
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1answer
43 views

How does denim insulation perform at low ambient temperatures?

I am interested in how denim insulation like this performs at low ambient temperatures. Does anyone know? I am most interested in performance measures like R-value and what other factors affect this. ...
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1answer
28 views

how can edpm or a rubber like material be attached to pvc board?

Considering using 4 pvc boards for dug well cover. Need a sealing layer to keep water out. A mastic might work too.
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5answers
197 views

How should I deal with pine needles falling from tree onto roof? [closed]

I live in a 100 year old house with an addition on the back. We have a pine tree that is hanging over the addition. The roof and sky lights are leaking. The rest of the roof is ok. We want to just ...
1
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2answers
58 views

what material could I use for a mirror that allows light to pass through [closed]

I am creating a smart mirror by constructing a frame where a monitor sits right behind a mirror. I tried using a regular mirror but the mirror did not allow enough light to pass through to see the ...
8
votes
7answers
59k views

What should I use for a sandbox bottom?

I'm building a sandbox for my three-year old. It will probably sit on the deck, so it needs some kind of bottom. Ideally, we should be able to move the sandbox around the deck. Is it necessary for ...
0
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4answers
326 views

Heat and water safe material for internal dishwasher repair

On the inside of my dishwasher is a plastic tube that transports water to a spinning piece in order to clean the upper rack. Part of the plastic tube has melted through and the top rack is no longer ...
1
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0answers
70 views

Desk stress with grommet holes

I'm looking to make a desk for myself. For the surface, I'm planning on using an oak kitchen surface (either 30mm or 40mm thick) and I'll have 4 60mm holes cut to support desk grommets for cables, ...
0
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1answer
41 views

Transparent material like two-way mirror for specific colour

I really like the idea of smart mirrors, using a two way mirror with a monitor behind it to provide information on the mirror and make it look like a regular mirror when the monitor is turned off. Are ...
2
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3answers
364 views

Why are “horseshoe” shims shaped the way they are?

Here's an example of the type of shim I'm referring to: They are sold marketed for various uses - tile spacers, leveling window or door frames, etc. They are non-tapered. Its not clear to me why ...
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0answers
61 views

What is this metal material?

I’m running some networking cable from my attic to my basement (only going through one main level). The best place to run the cabling takes me through an old covered up door (closet) frame on the way ...
6
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3answers
2k views

Does RTD in plywood mean “Rated” or “Resistance Temperature Detectors”?

Lots of plywood at Home Depot have the letters RTD in the title, with no further detail. Many of these have multiple user questions of the form "What does RTD mean?" Answers seem to be split 50/50 ...
3
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1answer
43 views

Material Identification: Bath tub front cover

While renovating a bathroom in a quite old house in germany, we removed the cover holding the tiles on the front side of the bathtub and could not clearly identify the material. It seems to be ...
2
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3answers
76 views

Best practices for disposing of waste that is diluted in water? (paint, finishes/membranes, cement, dust/particles from wet saw, etc)

Usually I let waste dry up in the case of cement/paint, then throw away. But often times waste is diluted in water. Should I bag these up and then throw away? I do not want to put it down the sink, ...
3
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1answer
252 views

What is this soft plastic like material that has been added to the window, and how best to remove it?

The previous owner added this soft, plastic like material to the window frame and I'd like to remove it. I can get parts off with a knife, and when I do it is flexible and soft. I believe this is ...
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1answer
52 views

What does “34 mill by 34 mill timbers” refer to in the video i have linked to

In this YouTube tutorial about sound proofing the host Refers to 34 mill by 34 mill timbers. you'll see this framework that runs all the way around up, that's just a soft wood frame attached ...
2
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6answers
112 views

How can I jack a steel post out of the ground?

Following on from this and this question I've got to the point where I am trying to "jack" a pole out of the ground. I had a spare 3/4" bolt that I thought would be strong enough but unfortunately it ...
1
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2answers
472 views

What type of material is flexible but not too much, water proof, and can tolerate 80°C temperatures? [closed]

The idea is to build an electric pad with an non-coated heating wire (~1.3 Ohm/metter): the pad must be flexible under the bed sheet (like this one) but not too much (to prevent it being crumpled ...
2
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3answers
2k views

What material to use for replacing interior porch panels?

I really have two questions, both pertaining to the enclosed porch on the front of my house. The first is, what material should I use to replace the panels that are starting to warp (bottom of the ...
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4answers
179 views

Is there a building material that can be cut and glued, can be used outside, and provides good insulation?

I'm trying to make a pet house but I'd rather deal with something warmer than wood. Bonus points if it's light and easy to cut. See this question for project details.
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4answers
114k views

What type of screw is the most resistant to rust: galvanized, stainless steel, or deck screws?

How do the following screw types fare in an outdoor (wet) long-term application? Galvanized screw: Stainless steel screw: "Deck" screw:
5
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2answers
503 views

How can I build a lamp like the one I saw in the store?

My Fiance and I were walking through Target to find a lamp for the corner of our living room. We saw this one that we kind of liked But the price was way too high and the panels were too small. I ...
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2answers
67 views

What material should I use to make this element

How make this in a space of 7.5m length x 2.5m breadth?
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1answer
55 views

Cheap material for stiff, thick, lightweight, insulating walls?

I want to construct a large water tank. The walls need to be fairly thick (several centimetres) very stiff (they will be decoratively plastered inside and out and the plaster should not crack) ...
0
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0answers
32 views

Building square tapered porch columns that won't rot

I have 4 columns originally built with 7 ply plywood and some are starting to rot. I've rebuilt one with cedar but am looking for a material that will last even longer without breaking the bank. The ...
2
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3answers
4k views

How can I connect metal rods together crosswise?

I have some stainless steel rods of diameters such a 1/4", 3/8", 1/2" or so, and I want to connect them together in some cases cross-wise to make a lattice. In some cases it might be convenient to ...