Questions tagged [waterproofing]

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41 views

Looking for feedback on prep & paint plan for moldy wood siding

I'm getting ready to paint my cabin this summer and I was hoping to get a reality check on the order of sequence. I've painted houses inside and out before but they were new, and this is a bit ...
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5answers
20k views

Should Caulk be used around vinyl windows

I purchased a new home last year and all the windows installed are vinyl. My previous home built in 1999 had wooden windows. My question is are all the exterior windows needing to be caulked? I know ...
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0answers
16 views

Mapei Aqua Defense Repair

I used Mapei's aqua defense to waterproof my shower curb, floor and walls after gutting the shower, and redoing the curb, shower floor mud bed and hanging new durock. So far I've only installed the ...
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1answer
40 views

Water in basement from basement door concrete crack

In my basement I get some water seepage that I believe comes from a crack in the concrete steps/framing underneath the cellar doors. Interior 1 Interior 2 Exterior On the outside, there is nothing ...
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1answer
32 views

Contact cement for foundation dimple board

I have a cinder block foundation and plan on excavating to apply a 3 layered approach toward waterproofing it. Paint on asphalt sealer (aka tar) - Henry 101 Bituthene adhesive membrane (similar to ...
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1answer
30 views

Filling gaps in a shower hob - best substance for this gap?

My shower hob has a number of leaks. I've highlighted a gap in the photo below which appears to be allowing water to run through to the other side of the shower hob. If I use silicone sealant in the ...
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1answer
942 views

Removing Shower Tiles from Waterproof membrane

I am looking to re-grout some tiles in the shower which have come loose. However I have a couple of tiles which have completely broken. However while trying to remove half the tile, it is really ...
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2answers
54 views

Are water and vertical cracks normal for full height crawl space? [closed]

I am thinking about purchasing a home that is set on top of a crawl space (see image). The crawl space has the full height of a basement, windows and a door leading outside in the back. It has French ...
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1answer
60 views

Should cracks and water in the crawl space concern me when buying a house? [duplicate]

I am looking at a house that with a crawl space (see image). The crawl space has the full height of a basement, windows and a door leading outside in the back. It has French Drains along the downhill ...
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2answers
27 views

Clear Marine Vinyl Sheet On Bathtub Surround To Temporarily Waterproof Walls?

I have a bathroom upstairs with a bathtub/shower, and a bathroom downstairs directly below. I keep getting a significant leak from the upstairs bathroom down through the ceiling into the bathroom ...
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0answers
58 views

Replacing a full height crawl space with basement

I am thinking about purchasing a home that is set on top of a crawl space (see image). The crawl space has the full height of a basement, windows and a door leading outside in the back. It has French ...
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1answer
40 views

Sealing water leak between kitchen cabinets and floor

Since moving into our house 5 years ago, we have spilled a large amount of water on our kitchen floor a few times. When this happens, the water leaks into the floor boards and drips all the way into ...
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0answers
19 views

Waterproofing Shower with BathFitter Tub

I'm re-tiling my shower and due to some mold/water damage or just bad material we ended up almost stripping everything down to the studs. Of the 3 shower walls we had to put up new backerboard on two ...
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0answers
81 views

How can I install gutters where there is no roof overhang, and the walls are concrete block?

I have a detached garage that has a flat rubber roof that slopes from front to back. There is however no overhang at the back of the garage, and no gutters, so water is running down the concrete block ...
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4answers
47k 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 ...
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1answer
104 views

Fixing water ingress at mitred corner in roof fascia

Apologies in advance for the long question - I wanted to include all the details as I am rather unsure of what I am doing! I have a 10-year-old flat roof with a fascia facing the predominant weather. ...
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2answers
91 views

Waterproofing between wall and new sink vanity

We just installed a new sink vanity and there's a roughly 1 inch gap between the bottom of our mirror and the top of the sink where the wall is exposed. We'd like to protect the wall back there from ...
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0answers
23 views

Ventilating a flat roof

My ensuite bathroom has a major humidity problem. I took the fan out (it's one of those combo heat lamp + light + fan units) expecting the fan to be broken, but found another problem - it's just ...
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1answer
93 views

Insulating and framing a basement after drain system and plastic vapor barrier installed

We had a moisture problem in our basement located in Minnesota. Recently some foundation water came up and ruined our carpet, when we tore out the drywall there was moisture build up and some mold on ...
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2answers
45 views

Water seepage around the water main pipe's underground entry hole thru concrete foundation

So lately with all the hurricane rainstorms, I noticed that some ground water was seeping in from around the pipe where the water main pipe comes into the house's basement. I think this seems to ...
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3answers
102 views

What screws should I use to screw Wedi boards into wood studs using Wedi washers?

I'm building a waterproof bath area with shower head. I have 12.5mm Wedi tile backer board and Wedi washers, for fixing the board onto wood studs. I was hoping to buy "Wedi screws" but the ...
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1answer
52 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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0answers
72 views

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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1answer
94 views

Material for short-term sealing of cement patches in EPDM roof? [closed]

I recently had a contractor install solar panels on my EPDM rubber roof, and they cut some fairly large square holes to pour concrete and attach bolts for the rails (long story). The problem is that ...
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1answer
39 views

Exterior Cement Patio poured all the way to exterior brick of the house. Water proofing options?

My house was built in 1955, at some point (unknown) a cement patio was poured beside the house. The cement was poured all the way to the brick work of the house (No visible gap or nor is there a good ...
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1answer
642 views

Does tar roof patch on EDPM rubber roof cause damage?

I applied Henry 208 roof patch on my EDPM rubber roof. It looks fine and seems to be holding up, however I'm concerned that it may react with the EDPM chemicals. I have heard this can happen with ...
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0answers
20 views

Waterproofing stucco over OSB

I have a legacy window that I am boarding up, for reasons of interior layout. As the surrounding wall is stucco finish, I want to do the same over the boarded up window. I was thinking to just screw ...
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0answers
42 views

Cable gland with thicker rubber seal/apron

I'm looking to use a cable gland to waterproof a low voltage valve actuator connection in a junction box. I have a cable gland appropriately sized for the wire, however the connector on the end of the ...
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3answers
6k views

Installing a Bathtub that does not have a flange

We are in the process of doing a bathroom remodel and we noticed that the bathtub we ordered does not have a flange. The bathtub will be installed in an alcove setup (surrounded by 3 walls) and will ...
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1answer
96 views

tools and material to seal and shape concrete rooftop lip?

How can I seal the concrete lip in this building's rooftop? This lip is about 5" wide, and I need to seal it. At the same time, it needs to be even with the rest (ie.it needs to look "square" ). ...
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1answer
49 views

What are my options for plugging leaking gaps, cracks or seams from the back, in concrete walls?

What type of product are available to plug larger gaps in concrete walls, which are subject to hydrostatic pressure (e.g. wet dirt on one side)? Specifically I have an 18" tall retaining wall type ...
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1answer
59 views

Do no flange low profile shower bases present an increased chance of leaking?

I'm thinking about buying this shower base or similar. Specs here. It has no flanges so I am wondering if adding my own flanges for tiling is a thing that I want to do. I am handy but I am afraid ...
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1answer
214 views

How to build an additional concrete/cinder block wall in basement, where the crawl space and basement meet

The small basement in my house (built in 1932) has three concrete walls. The forth wall is comprised of vertical wood boards. Behind the boards is the crawl space for the rest of the house. The ...
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2answers
52 views

Should I remove and reinstall a Jacuzzi / whirlpool tub when replacing the paneling around it with tile?

I have a large Jacuzzi / whirlpool tub in my master bedroom suite which currently has an all wood surround. As part of a renovation I want to get rid of the wood surround (at last partially), ...
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1answer
430 views

Deck blocks on patio stones

I am planning to build the 16x18ft floating deck in the back of my townhouse. The back patio is paved with 12x24' patio stones and I am trying to figure out if I should remove patio stones and lay the ...
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1answer
104 views

Chimney still leaking despite reflashing and coating

My chimney was leaking and the contractor pulled apart the roof around it and reput it with proper sealing and coating. Then he also coated the entire chimney with Geocel siliconized seal which is ...
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1answer
3k views

Is it okay to insulate a basement wall when an interior french drain is installed?

As I mentioned earlier, I've got some extensive repairs to make to my house following water damage from some improperly installed siding. One of the things I discovered when I pulled the wet drywall ...
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1answer
65 views

Water seeping into a crawl space

In 1960, the builder poured a 6 foot foundation to build my parents' home. He then decided to lengthen the home by adding a 4 foot foundation to extend the living room and kitchen area (now under a 4 ...
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1answer
1k views

Is it okay to mix paint thinner with an elastomeric coating for waterproofing?

Is it Ok to mix paint thinner with an elastomeric coating (HB-70) which is being applied for waterproofing? I have people who have been waterproofing a dome (the right hand dome in the picture below) ...
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1answer
446 views

Water leaking behind gutters

I'm a new homeowner and found that water is getting behind my gutters and was hoping someone may have a solution for me. Here's the gutter: Edit: Additional pictures below Video here: https://imgur....
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1answer
50 views

Basement water seepage management

My house is built into a slope, with the bottom floor partially underground. See photo 1 - grey wall is a common wall with my neighbor, the white back wall is entirely underground, and the left wall ...
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4answers
3k views

How to install an outdoor outlet in new stucco (not retrofit) — with details done right

Previous questions pertain to adding an outdoor electrical box to old stucco (How do I install electrical through existing stucco (e.g. "old work") ). What are the ways it's done on a wall ...
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0answers
32 views

Shower niche in 2x4 wall with drywall back, can I waterproof back of drywall with redguard+fabric?

I'm trying to maximize the depth of the shower niche I am building and would like to know if I can leave just the back side of the niche which is the brown side of drywall. The walls of the shower ...
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1answer
89 views

What wall cladding should be used along the floor of the garage?

I have an attached garage on a house with a wood foundation in Minnesota, USA. The garage is not temperature-controlled. On a roughly three foot long exterior wall, I discovered the drywall was ...
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1answer
51 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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1answer
563 views

Leaky windows, where do I caulk outside of the window?

Our house was built in 2016, shortly after moving in we noticed that all of our windows on the main floor leaked. The builder came, did something (I wasn't home), and all but one stopped leaking. It ...
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3answers
86 views

Densheild tile backer board use advise needed

I'm in the process of doing my bathtub walls and I'm thinking of using Denshield™ boards. My total area is 55 sq ft. I found 4'x8' Denshield™ sheets so I will need to buy two sheets to cover my area (...
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2answers
474 views

Plumbers Silicone Grease vs Dielectric Grease

Can I use plumbers silicone grease as a substitute for silicone dielectric grease? They both appear to contain dimethypolysiloxane and silicone dioxide. Is this the same product given different ...
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3answers
2k views

Can dielectric grease be used in coax connections?

I have two coax cables that need to splice together. I am using waterproof F-type connectors but I was wondering if a dielectric grease where the two screw in to each other would be harmful (signal ...
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2answers
36 views

Can a wood cabin be laid directly on a existing concrete foundation if a DPC is added?

I am figuring out the foundation for a small wood cabin for my back garden, due to height being a premium I was wondering if I could put the wood directly on an existing garage foundation. Providing I ...

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