Questions tagged [waterproofing]

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1answer
17 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
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
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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2answers
26 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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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
76 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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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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3answers
88 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
639 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
41 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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2answers
51 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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2answers
44 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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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
58 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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0answers
28 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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2answers
429 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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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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2answers
26 views

Underlayment for using porcelain tile outdoors?

Rebuilding an outdoor deck in upstate NY with 6" X 24" porcelain tile. The foundation will be a 6" concrete bed with rebar. Confused about the need for and the order in which the ...
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1answer
37 views

How to build watertight containers that keep water out even if it is fully submerged? [duplicate]

Examples of appliances I want to protect are: monitors, computers, and printers. I have looked everywhere and I cannot find a solution where I can simply buy a box in the market. These are often times ...
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1answer
135 views

Replacing electrical panel halfway embedded in EIFS stucco

I need to replace a main load center from the side of my house (it's FPE, so it's gotta go). Plus the utility is willing to increase my current 100A service to 200A, so I'll need a new meter base for ...
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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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2answers
31 views

Exterior foundation drain pipe location relative to the footer

Our house—built in 1989 in the Kansas City, MO area—has a walk-out basement with exterior foundation drain pipes daylighted. The drain pipe on the east wall had a complete blockage, so I dug it up in ...
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1answer
18 views

how do i prevent rot on a porch?

i don't understand why there have to be gaps between deck boards but not porch boards. our porch boards got rotted from rain water settling between them and needless to say there were no gaps when it ...
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2answers
36 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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4answers
80 views

what should I use to cover a table made out of a broken bookcase?

I'm working with a friend who is trying to make a kitchen table (i.e to use for eating) from a bookcase which broke. We're trying to do it as low-budget as possible (he's in a lot of debt right now). ...
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1answer
88 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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2answers
48 views

What's the minimum fall for a flat roof with edpm perpex polycarbonate

I read that an edpm rubber roof requires a minimum fall of 1 in 80 in order to be able to shed water. I calculate that to be 0.7 degrees. My flat roof is 1.7 degrees. I was thinking to also install a ...
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2answers
151 views

Foundation dimple mat with fabric or without?

It seems there are two main product types for house foundation dimple boards with fundamentally different approaches. A naked hdpe sheet where the dimple peaks are installed facing wall. Hydrostatic ...
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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
77 views

Can EPDM roofing be applied directly over XPS panels?

I couldn't find any information if one can put EPDM rubber (ethylene propylene diene monomer) directly over XPS (extruded polystyrene)? The materials are used for hydro and thermo isolation (...
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1answer
38 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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1answer
33 views

Flat roof membrane not welded at edge of each layer, need help

The roofing company I hired finished applying Polyfresko bitumen on my garage, and instead of welding the beginning and end of new layers at the edges, they overlapped one layer over another by about ...
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0answers
22 views

Crystalline waterproofing instead of a moisture barrier for basement

A room in my basement sometimes gets some water in through the basement wall and through the footing-wall joint. All the contractors who have looked at it propose a moisture barrier on the inside of ...
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1answer
41 views

Type of glue for sealing cable entries

I am looking for the name of a type of glue (I think brand recommendations are not permitted, so not that) which will seal an electrical connector to the socket it is plugged into in a reversible and ...
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0answers
21 views

Water seaps in from concrete driveway under brick wall into concrete sunroom

My house was built in 1978, I bought it three years ago. It has a step down concrete slab sun room. The sun room has brick walls and joins my concrete driveway. I have caulked the joint area ...
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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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1answer
51 views

how to wrap/weatherproof corner when replacing corner trim

I am replacing some corner trim boards on my 1970s-construction house in Maine that have rotted a bit at the bottom. My house has cedar shingle siding. Main question: what should I do as far as ...
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1answer
89 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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1answer
64 views

How do you stop basement waterproofing sealant that is coming into the sump pump basin from the foundation drain pipe?

I have a very unique and serious problem on my hands concerning the sump pump in my basement and I am very eager to hear of any suggestions or possible solution(s) as soon as possible. The problem I ...
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1answer
232 views

Sill Pan for Exterior Door - Importance VS. Requirement

I am installing a new secondary entrance door and deciding whether to use a plastic sill pan from HD or Lowes. Neither store, nor any lumber yards around me, carry these in stock. That leads me to ...
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1answer
54 views

Cable conduit catches water?

Below is the picture of how the ISP cable enters my house. Just wondering where all the rain water that gets into the same conduit goes? Doesn't seem right that no measures were taken to prevent water ...
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0answers
31 views

Whats the best way to seal a new garage roof to another existing garage roof?

I've just raised my garage roof from just below to 150mm above the adjoining garage of my neighbour. Their felt roof used to flap down onto my roof but now I need to direct this felt flap up to my - ...
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1answer
34 views

Shower Curb Penetrations

The person who installed my frameless shower glass mounted two brackets directly into the shower curb. There is some silicone visible around the brackets... I'm not sure if silicone was used in the ...
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1answer
342 views

Retile Shower Floor Only?

I want to replace my mosaic tile shower floor. The shower pan is hot mopped. The wall tiles are set on a 3/4 inch mortar bed. I imagine replacing the floor tile means replacing the hot mop, which ...
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1answer
199 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
119 views

Is a too-shallow foundation allowing excessive water into my dirt crawl space?

I live in a local minimum for my neighborhood, and in fact my house is built on the banks of a stormwater drainage ditch. Most of the rainwater from the road is collected by stormwater drains and fed ...

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