Unanswered Questions

6
votes
1answer
109 views

Does anyone have experience with small heat-recovery air exchangers?

I know there are units made which are supposed to be sized for use in a residential kitchen, as a more efficient replacement for the usual vent hood (bring air in to replace air blown out, but ...
5
votes
1answer
106 views

Concrete foundation repair

My home was built in 1914 (Portland, Oregon). In 1948, the house was moved 200 feet to its current location. The 750 square foot house has a concrete basement with a concrete floor. The concrete ...
5
votes
2answers
342 views

What is a good PWM driver for LED lighting?

I am looking at lighting options for my new flat. I'm looking for any recommendations and suggestions for the components to power and control the LEDs. If we consider the main room (i.e. the open ...
4
votes
0answers
42 views

Should I use cement board or green board behind the walls of a neo angle shower?

I purchased a neo angle shower and I am installing it on the second floor of my house. I have the pan down and I am ready to drywall. which is safer to use, cement board or green board behind the ...
4
votes
0answers
106 views

What (animal?) made a 0.75" diameter hole through my asphalt shingles?

Something made a tidy 3/4" diameter hole through my 8-year old 3-tab composite roof shingles. (~45 deg pitch, if it matters) I suspect it was a woodpecker (they used to go at the side of the house, ...
4
votes
1answer
230 views

What is correct vapour barrier method for bathroom ceiling in a bungalow in Canada

I am in the middle of a complete main floor bathroom gutting and re-finish job in my house in CANADA.. and WINTER IS COMING!!!! THE BACKGROUND (pics below): My bathroom is 5'x 13' in a bungalow with ...
4
votes
4answers
2k views

how to repair large, uneven crack in concrete floor

I have a really long (about 20') uneven crack in my cement garage floor. Not only is it jagged, but the sides of the crack range from flat to about 1/2" high. I want to level the sides of the crack, ...
4
votes
1answer
2k views

Hot Water Circulating System Problems

My hot water circulating system was installed in 2006. It has a dedicated return line from all faucets. I've been having trouble lately with the hot water, it turns cold at the faucet when the pump ...
4
votes
4answers
5k views

How should I prepare a plywood subfloor for floating vinyl plank flooring?

The floor of my laundry room was three layers of hideous vinyl flooring of various vintages, a layer of 3/4" plywood underlayment (to match the height of the vinyl to surrounding hardwood flooring) ...
4
votes
2answers
759 views

Wainscoting a wall that has windows without casings. Is there a typical trim method?

We're redoing our front room in our house. We're thinking of going with a 'seaside cottage' feel and installing some wainscoting on the walls about 2/3rds the way up. The catch is that our house ...
3
votes
0answers
24 views

How to mix a resurfacer/leveler with sand and cement?

Disclaimer: No, I can't buy ready made surface leveler, because in Brazil this doesn't exist. I need to use a resurface a dry pack levelling that my previous contractor made a lousy job (porous ...
3
votes
1answer
100 views

Should a twisted copper pipe be replaced?

While replacing a hot water tank I foolishly twisted the out pipe by losing my grip on the wrench. The copper pipe twisted, so I twisted it back gently, but it now has a kink in it. Is this likely ...
3
votes
0answers
97 views

Is there a limit to the number of holes bored in a joist?

I already know that a hole bored in a sawn lumber joist cannot be within 2" of any edge or any other notch or hole, and that the hole can be a maximum of 1/3 the depth of the member (International ...
3
votes
1answer
63 views

What disadvantages do thermostatic mixing valves have?

I will soon be buying a new water heater for my home. I want to set the heater to keep the stored water at least 140 degrees Fahrenheit (60 degrees Celsius), and use a thermostatic mixing valve to ...
3
votes
4answers
175 views

Rim Joist Insulation without a Sill Plate

I've seen a few similar questions but the answers don't add up... I would like to use some rigid foam insulation to insulate my rim joists. Here is the problem: everything I have seen shows putting ...

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