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4
votes
4answers
1k views

Does a device exist that can help find the source of a leak in a flat roof?

My Dad has a flat roof over his garage. It's covered with tar and felt. We had an unusually hard and cold winter last year (Republic of Ireland) and since then the roof has developed a leak. We've ...
5
votes
3answers
745 views

Should I install external basement insulation that does not extend above ground?

Question : Is there a way to calculate energy savings for external, 2inch insulation on basement walls that does not extend above the soil surface, leaving the top couple feet of foundation wall ...
3
votes
1answer
718 views

How do I properly install underlayment and a modified bitumen roof on a flat garage roof with concrete walls?

My project is to replace 18'x10' flat roof on my concrete garage. So far I installed 16" oc framing and 3/4" plywood over it. Now I am planning to install some fiberglass based underlayment (#30, ...
6
votes
2answers
10k views

How do I seal a large gap between slabs to avoid freeze/thaw heaving?

I have a very large slab patio on the back of my home in Southern MN that has pulled away from the house about 6-8" due to freeze/thaw heaving. The previous owners have filled the gap with river rocks,...
3
votes
1answer
715 views

When waterproofing my basement, should I apply 11 mil plastic in addition to the dimple board?

I'm currently interviewing contractors for exterior basement waterproofing. The difference in price is not significant, but there is one major difference. The contractors will: Trench down below ...
1
vote
1answer
2k views

What can I use to repair a crack in a plastic AC Condenser Drip pan?

I've currently got an oldish furnace (early '90s Lennox), with an A/C system. The blower motor burnt up on me last week, and I just had it replaced. It turns out that the reason for the motor going, ...
3
votes
1answer
7k views

How do I stop water from coming under my multitrack sliding doors?

I live in a desert where seasonal hard rains occur 5-10 times per year. We have an automated door with a multitrack slide that it lets quite a bit of water in when it rains hard. The door is an ...
7
votes
1answer
243 views

Is it normal for the concrete covering my interior perimeter drain to be damp?

I inherited an interior perimeter drain with a sump-pump as part of a basement waterproofing system when I purchased my new home two years ago. Since then I have noticed that along the seam of the ...
16
votes
2answers
966 views

Is it better to waterproof a basement from the outside or the inside?

Is it better to waterproof a basement from the outside or the inside? I've heard different things about this. We have a home built in the 40's on a cinder-block foundation. One side of the house is ...
3
votes
1answer
1k views

What could cause condensation on a ceiling after painting with a roof sealer?

I am renting an apartment and the tenants recently complained about water droplets on the ceiling in one of the rooms. The apartment is on the first floor and surrounded by plants (we live in a ...
0
votes
1answer
677 views

Waterproof seal between two submersed pipes

I have an odd problem. Essentially I am working on fabricating a connection between two fiberglass pipes that are intended to be submerged underwater (depth 30ft). No water should make it inside of ...
4
votes
1answer
9k views

Attaching a pergola (or deck) to vinyl siding

Building a structure which is attached to a house usually involves a plate which is bolted to the existing building, typically a 2x8, or 2x10. I understand how to structurally attach this, my concern ...
2
votes
1answer
585 views

How to mitigate and/or repair concrete frets (slab edge wetting)

A building engineer made a report of problems with our property. One issue raised was "slab edge wetting" by which the building engineer meant that the concrete slab on which the house is built is ...
2
votes
4answers
1k views

What is the best way to seal this old fireplace vent?

I am doing some minor renovations to my basement with the drop ceiling and found that one of the geniuses that owned the house before me, used fibreglass ceiling tiles to seal off an old vent for a ...
2
votes
4answers
919 views

What is an appropriate sealer for a Papercrete bench?

I've built a bench out of tires and papercrete two years ago. i've sealed it with lime plaster. in the past two years it held up against 500 m"m of rain in the winter and Mediterranean sun 7 month ...
7
votes
4answers
12k views

Can I erect a barrier to keep water out of my garage?

Within the last year, I have purchased an 80+ year-old house. The house has a sealed blacktop driveway that runs parallel to the house. The house has an integrated garage with swing-open (horizontally ...
20
votes
9answers
130k views

I have a basement floor with lots of moisture, can I paint or seal it to make it waterproof?

My basement has a slight dampness issue, where if I leave things on the floor they will get wet. There are no leaks and no standing water, the moisture seems to be wicking up through the concrete. I ...