Questions tagged [caulking]

Caulking is the action of applying a sealing compound to joints and gaps in building materials.

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23 views

What material(s) to seal exterior water pipe opening in masonry?

I have an opening for an exterior water pipe/hose bib as shown: The opening is about 2.5" wide and I don't have direct access to the back side. What material(s) should I use to seal the opening? ...
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34 views

Best way to flash pvc deck frieze board to brick/concrete

I'm resurfacing a deck and installing a waterproofing spline between the deckboards called Dexerdry. The first board sits in routed 5/4 x 4 PVC which is fastened to the exterior of the house. A few ...
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21 views

Faucet flush against backsplash, how to seal?

Have two bathroom faucets that were installed completely flush. Replacing the silicone caulking. Should I leave them installed and just caulk around and on top? Or first remove the base and caulk the ...
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73 views

How useful is a cordless adhesive gun for the DIYer?

I haven't used a (manual) caulking gun in years, but I recall it was particularly dreadful to use one. Pressing the lever at a uniform angle (or what I imagined to be one) never produced a consistent ...
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62 views

Can I use elastomeric sealant intended for roofs to caulk my shower?

I have a shower where the caulk around the door was moldy, so I scraped out the old caulk and am getting ready to apply new caulk. But all the bath/shower caulk I have is old and dried up. I do have a ...
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61 views

How to caulk wide gap around bath

I want to re-do the caulk around my bath, but the gap starts small and grows to about 4cm. It doesn't need to be a perfect finish -- just enough to stop the water until the bathroom is refurbished ...
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40 views

How to seal (caulk) replacement windows that have wrapping [closed]

When installing replacement windows where do you put caulk, and does this change if you have aluminum wrap being put on the outside? Does caulk go all the way around the window (between exterior ...
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42 views

Re-caulking vinyl windows exterior, what material do I remove, what needs to stay?

The addition to our home has very low quality vinyl windows, and board and baton siding. There are some gaps starting to appear. Looking at the photo, arrow #1 points to ~3/8" of a caulk or ...
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47 views

Leaky Windows caused drywall discoloration / damage - how to approach repair?

After a heavy rainfall I noticed that an area of the drywall was discolored and cold/soft and managed to push it in (woops). This area is usually behind a curtain so we never noticed it before. I ...
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38 views

Removing old caulk to clean mold, started pulling up unknown layer

I'm removing some old caulk from my tub to deal with some mildew (photo below). While stripping the caulk, I've started pulling up an unknown piece behind the caulk (second photo). My initial thought ...
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How can I properly caulk a vinyl window to a marble sill, inside a shower?

I have a vinyl window in my shower sitting on top of a marble or stone sill. The silicone caulking didn't stick properly last time and is now peeling off and getting moldy, since it's always getting ...
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83 views

How to seal between aluminum downspout and PVC adapter?

I recently connected a gutter downspout to an existing French drain along the side of my house. The old downspout poured out onto the patio which would ice over in winter. Because of how the French ...
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63 views

Replacing Grout Around Kitchen Sink

first time poster, hope someone can help. The grout around my kitchen sink is old and broken, and I'd like to replace it. Not sure if it would be better with grout or caulk (I've never used grout, ...
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32 views

What caused a new caulking job around a tub to develope pin holes within hours

please help... I had a contractor replace old caulk around my bathtub yesterday. Last night I noticed a small pinhole which at first looked like a speck of dirt, Today there are several more pinholes, ...
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I put caulking in between tiles that had grout already underneath it. What do I do?

My floor tiles had unsealed grout already in between the tiles. I went to Home Depot and bought a “sealant”, but it was actually caulking. I ended up putting caulk over top the unsealed grout in ...
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25 views

Lining around tub is coming off

The lining around my tub is coming off, can anyone point me in the right direction on how to fix this myself? I found a YouTube video on how to caulk a tub: which I guess is what I will go with that, ...
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Preventing silicon caulk from sticking to itself while creating tubes

Preventing silicon caulk from sticking to itself Food Grade RTV Silicone Sealant Adhesive Clear 10.3oz when creating tubes. Some videos show using hot water and some videos show using cold water and ...
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287 views

How to patch siding half covered by electrical panel

When I had solar panels installed, they removed an old electrical box, leaving a hole in the siding. For no apparent reason, they installed the new electrical panel over half of the hole they left. I'...
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Weird brown line behind bathtub caulking

Earlier today, I found cracks in the caulking around my shower, so I removed the caulking to look for any mold or water damage. When I shone my iPhone light in that area, I found a weird brown line. (...
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Exterior caulking - metal to concrete, metal to metal, metal to painted wood (pacific northwest). Any negatives of dow 795?

I am looking for a long lasting caulking for exterior work. I have primarily metal cladding but there is metal to metal, metal to concrete and metal to painted wood areas that need caulking. I ...
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47 views

Caulk on top of grout in tiled shower

We have a tiled shower that is grouted. The installer put caulk on top of grout where the wall and floor meet and the corners where the walls meet. Problem is, the caulk mildews and disintegrates. ...
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51 views

Caulk wont stick to baseboards

I have used Sherwin William and DAP caulk but it keeps peeling away from my baseboards. What is a good type of caulk that will not separate from the baseboards? The baseboards are painted with Sherwin ...
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509 views

Can I caulk the corner between stone countertop and stone backsplash?

Since I purchased this home a few months ago, we've noticed water from the sink can sit in this corner and possibly grow fungus or just leave mineral residue when it dries. We have tried to keep it ...
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58 views

How do you deal with a gap between vanity and wall?

I glued in the vanity backsplash, and I used a tad too much glue so it doesn't sit tight against the wall. Furthermore the wall is not straight and even when I lined it up before gluing, there was a ...
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How to repair the caulking around basement walkout doors and what to use?

Another waterproofing question: our basement has a walkout door that is leaking from where the metal doors meet the concrete base. Three pictures from inside and one from outside are attached below. ...
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850 views

What caulk to use for basement leaks at cove joint where floor meets the wall? Polyurethane, silicone, or latex-based Drylok?

I noticed a small moist patch of the floor near a radon mitigation system. However, I suspect that it has little to do with the radon system but was due to failed caulking at the cove joint, as there ...
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18 views

What kind of sealant should I use for the exterior

The sealant that was used before has degraded and air is leaking from the outside into the room. Additionally there is a gap between the floor and the wall. For interior of the room I was going to use ...
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316 views

Where to Caulk Around Windows on Exterior of Home? Is this a Drip Edge?

It's winter time again and our windows are really drafty so I am going to start replacing some of the old cracking caulk around the windows on the exterior of the home. In the process of examining my ...
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1k views

What to use to seal an exterior cable penetration in brick?

A Comcast tech came to our 3-unit building, ran a new cable into the utility room, and pulled out the seal that was there before, leaving it open as we're getting cold and wet for fall. What should I ...
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620 views

Should I caulk the gap between a wood threshold and concrete?

I want to sand down and paint the threshold to my front door, pictured below. The wood itself is fine (not rotten). There is a small gap between where the wood sits on the concrete steps. I assume I ...
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69 views

Is there any harm in caulking the bottom of this electrical conduit plate or should it be left unsealed? [duplicate]

There is a small leak into the interior that I’m wondering if it is getting in from the bottom not being sealed. Also, should the gap in the conduit where you can see the white wire be fixed?
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How is water getting onto the garage foundation sill in area near electrical penetration and weep hole?

There is a small amount of water that seeps in and shows up on top of the foundation sill on the inside of my garage in this area. It only happens during a hard wind driven rain. Do you think it is ...
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62 views

Can I apply caulk over exterior wood filler?

I am re-caulking trim that is over T-111 siding over my window that faces the brunt force of winds and rain in the Pacific Northwest. There were leaks over the window that appeared to be coming in ...
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91 views

How to apply silicone to an edge (tidily)

How can I coat an edge with silicone? There are caulking tools for all kinds of joints such as these, but there seems to be no such tools for edges. I tried using my fingers, but this is far from tidy....
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270 views

Shower curb tile: OK to caulk rather than grout?

I'm trying to finish up our shower. We ended up using a Tile Redi (which was an ordeal, but that's another story...) which means that the pan, itself, is completely waterproof, and that the tiles are ...
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30 views

What caulk color is this?

can anybody tell me what’s the color if the caulk used here? i replace the other side of my kitchen with silicone white and the colour is totally different with what is attached as picture.
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62 views

Caulking bathroom floor

I have this part of caulk missing near the corner of my bathroom floor. Should I just patch this section with new caulk or would I need to scrape the old caulk and reapply caulk along the entire edge? ...
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160 views

Should the edge of a tiled shower wall and floor be left unsealed?

Our shower remodel was just completed and our tiler intentionally left the edge of the shower wall and floor unsealed. This seems strange to me but he insisted that it should be left unsealed. He said ...
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45 views

How to properly re-caulk this shower?

The caulking in my shower was old and had some mold stains, so I removed it and am planning to re-caulk. After removing the old caulking, I noticed that parts of the removed silicon (the ones removed ...
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111 views

Caulking wood panels at bottom of bay window configuration

A contractor doing some other work around the house noticed a small section of wood on the panel of the bay window in this picture was starting to soften. He recommended caulking the bottom to keep ...
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2answers
104 views

Mold in tub caulking

I have mold/mould in the caulk/grout of my tub. Before I go about re-caulking it, I want to try killing it. I've seen sources say to use vinegar or bleach but are these sources correct? I've also seen ...
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68 views

Caulk/paint between wall and ceiling falling off, how to paint over?

We just removed wallpaper from one wall in our new house. Most of the wall underneath just looks like plastered concrete wall, however, close to the ceiling, it looks like there is instead white paint ...
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119 views

Caulking bathtub, is there supposed to be a hole?

I am re-caulking the bath tub, and have a question. After I remove the caulk, is there supposed to be holes between the bathtub and the tile? My house is 9 yrs old, and I have never had the guest ...
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38 views

What is the correct technique for calking two adjoining surfaces in a shower?

I have an old shower where the base pan and the shower tiles come and meet nearly exactly aligned. There are sections in the shower where the tile has almost no gap and it varies to about 1/16th of an ...
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2answers
900 views

Caulk/Putty around Interior Timber Frame Window Gaps

I am in the process of painting my timber frame windows and when cleaning and sanding down I have noticed that there is a small gap between the window pane and timber frame on the interior (the stuff ...
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139 views

Condensation and air leak from skylight

I Recently started seeing condensation on my skylight. Skylight is installed in the bathroom. Sometime on windy day I feel air coming through skylight. If I raise my hand up towards it I can feel ...
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598 views

Should the tiny gap between exterior window trim and the window housing be caulked?

I have a home with Hardie Board siding and trim. There is a tiny gap between the edge of the installed windows and the Hardie trim board ( Please see the gap where my finger is pointing in the picture ...
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1k views

Filling a gap between drywall and stair stringer

I was planning to remove the old ugly cove moulding on my stair stringers. 30 years of lazy paints jobs have left it in a very bad state. My initial plan was to just sand the stringer and wall, get ...
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35 views

Been going around caulking the inside windows and ran into a bigger gap

I have been going around the replacing the old caulk where it was cracked on the insides of my windows. I came across this window and it really opened up when scraping away the old caulk. It's by ...
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2k views

Small soft spot on ceiling below shower

Appreciate some help here before i spend money in calling an expensive plumber because i think the problem can just be poor caulking in my shower. I noticed a small soft spot on my ceiling today. I ...

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