23 votes
Accepted

Should a tiled shower ceiling have cement board instead of drywall?

I would want cement board up there, but not for the reason you may expect. I wouldn't want hard, heavy tile hanging on a thin layer of paper regardless of moisture concerns. It's not terribly ...
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  • 104k
22 votes
Accepted

Water leakage in new house - is this common or an issue?

Apparently this is a flat roof, maybe a terrace roof. Since the roof is flat, there is no slope to let gravity get rid of the water for you. So it really needs to be done properly, with an EPDM ...
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  • 5,780
22 votes
Accepted

French Drain: Why do I need 3" of rock bedding beneath the pipe?

If you put the pipe right on the fabric, you'll end up filtering the inflow through the 1/2" circles of fabric pressed up against the holes in the pipe, as opposed to filtering through all the ...
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  • 132k
20 votes
Accepted

Does tar roof patch on EDPM rubber roof cause damage?

Never, ever, feed them after midnight! Like gremlins, rubber roofs are very special and cool... But they have rules. You can get a rubber roof wet. You can expose it to direct sun. But you can't put ...
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18 votes

Water leakage in new house - is this common or an issue?

Ouch! This is really, really incompetent work...this house is likely to develop serious mold problems in the future. I would look for another builder.
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17 votes

French Drain: Why do I need 3" of rock bedding beneath the pipe?

The water will still flow through the rocks with the pipe assuming your ditch slopes as well. If any sediment makes its way through or around the fabric, the extra 3" will help prevent the ...
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  • 753
16 votes

Water leaking inside outdoor electrical box. What should I do?

That’s a standard weatherproof (Bell) box, and yes, sometimes they do accumulate and hold water as you have found. Code not only allows boxes to be drained. Code requires boxes to be arranged to drain;...
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  • 95.5k
15 votes

How important is Tyvek/house wrap for a house with metal siding?

While I don't doubt that your father 'never installed a house wrap for a metal building in his life' I have to wonder how many of them were residences? Buildings with walls that trap moisture or where ...
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  • 5,551
14 votes
Accepted

How do I correctly install ceramic floor tile?

Disclaimer: I am not an expert. I have worked on about a half dozen seperate tile floors, though! These instructions are not meant for a shower wall or floor, just every day use floors like bathroom, ...
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  • 1,318
13 votes
Accepted

How important is Tyvek/house wrap for a house with metal siding?

I don’t see a problem with felt for a portion as it was used for years, I believe a wrap is a good idea as it will increase the energy efficiency and keep the condensation from the metal off the ...
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  • 95.5k
12 votes

How can I locate and repair a leak on a flat roof?

Clearly this has been a problem for a while and also the standing water and patch job on the flat section of the roof is to blame. There is no real shortcut here, as you can see, so the solution is to ...
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  • 20.3k
11 votes

How to leak proof roof?

You have either, too flat of a pitch in your roof or installed your roof tiles incorrectly. Just accept it and move on. It's going to have to be redone. You would be wisest to tear it all out, then ...
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11 votes

French Drain: Why do I need 3" of rock bedding beneath the pipe?

I'm doing similar right now,at my home. The problem is twofold. Silt and sediment will flow with the water and ultimately, may either clog the geotextile, or bypass it (through it if its a broad ...
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  • 610
10 votes
Accepted

Buying a House On Underground Spring. What to do?

You didn't indicate your location or site characteristics (slope, hillside, etc), but the location of the country, even generally could be helpful, but not required. You indicated the water bill ...
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  • 1,123
8 votes

How can I prevent a wooden door from expanding and binding when it rains?

I am going to guess that you have a wood door causing the problem. If you have checked the original installation and frame alignment and feel that cannot be changed, then the only real solution is to ...
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8 votes

How would you protect a plywood container from moisture and abrasion?

The usual approach is a couple coats of polyurethane varnish. I'd sand it a bit to clean it up and give it a coat on all exposed surfaces. Steel wool between coats. It'll be apparent when you've ...
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  • 104k
8 votes
Accepted

Inserting probe into pressurized water pipe

The usual way is to use a T with the middle outlet being vertical: With a proper fitting, you screw this hollow adapter in. Ecnerwal says in a comment it is called a "thermowell". Fill ...
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  • 5,780
7 votes
Accepted

Is mortar waterproof?

Mortar is not waterproof. However, there are products that can be applied to mortar (and other concrete materials), that can make the mortar waterproof.
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  • 128k
7 votes

Best way to install gutters on roof with no vertical facia or eaves

This would be a situation where you'll have to use gutter straps (usually in T or K style): Image credit to acehardware.com They install on the roof decking - make sure to follow the manufacturer's ...
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  • 6,825
7 votes

How to leak proof roof?

What is the pitch of your roof? In the USA, this type of roof (most roof types, in fact) is installed over solid decking (usually plywood or OSB) with the underlayment nailed or stapled over the ...
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  • 12.2k
7 votes
Accepted

Effective method for waterproofing a tube through a hole drilled in the side of a bucket?

What you want is called a bulkhead fitting. This has a gasket to make a seal against the container, and threads to connect to whatever fittings you need. Some have outside threads on only one side,...
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  • 28.3k
7 votes
Accepted

Can I install a row of bricks on a slab to support a shed?

Michael Karas is correct in that a half-height block foundation wall is common, but that doesn't really address your concern about water intrusion. His suggestion to seal the block does, and that ...
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  • 104k
7 votes

How can I protect this exterior outlet from water and prevent smoke leakage to the interior?

Let's start with the harder one here Smoke It looks like there's a gap in the stone to the left of the outlet. I would at least try to fill it with something (maybe caulk if you want the simplest ...
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  • 19.7k
7 votes
Accepted

Is there a product for channeling water away from water appliances?

Water heaters have pans. You place the pan under the water heater, then attach a hose to send the water someplace less damaging. You can also get water sensors, which rest on the floor and sound an ...
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  • 2,452
7 votes

How important is Tyvek/house wrap for a house with metal siding?

I don't see what the issue would be with the Tyvek (or any other) house wrap. When my renovations were done, much of the brick was removed & replaced with OSB+Foam Board+ House Wrap + Hardiplank (...
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  • 3,959
6 votes

French drain did not solve the problem

Putting a drain sump on the inside is like catching the blood from a cut on your arm into a cup. What you really need to be doing is taking a hard look at what caused the cut and remedy that problem ...
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  • 61.1k
6 votes
Accepted

Can dielectric grease be used in coax connections?

Living and working as a cable television technician in a beachside region, I can attest to the value of the silicone dielectric grease for improving the lifespan of these connections. Salt air eats ...
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  • 9,293
6 votes

Water leaking inside outdoor electrical box. What should I do?

All outdoor boxes should have a drainage hole. These are not left open by the manufacturers because they don't know which way around the box will be mounted. There may be a press-out for the purpose. ...
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6 votes

Should a tiled shower ceiling have cement board instead of drywall?

My shower was originally done entirely with drywall, not a scrap of cement board in sight. It was installed in 1976 by the then-owner of the house and lasted until around 2012 when someone stumbled ...
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  • 221
5 votes

Soil grade is above foundation

How significant of a problem is having the grade above the foundation line? Soil above the foundation means that critters (rodents, worms, reptiles, etc.), bacteria, molds, and water can easily ...
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  • 12.1k

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