Leaks / Discussions

How do you stop air leaks in an old 1950's house?

...leaks in Attics or Homes

Posted by Don Fraser Sept. 3, 2021, 3:22 p.m. Air and vapour barriers 1 Responses

Is there a concrete admixture to prevent water leaks?

...leaks, mold, mildew etc. I'm just a bit stumped between 'concrete wicking moisture' and 'water leaks'. Also wondering if perhaps this is a new construction or e...

Posted by Frank Liu July 4, 2020, 6:03 p.m. Waterproofing and drainage 2 Responses

What materials should I use for a small plumbing job?

...leaks? And can you transition from copper to the plastic tubes? Plumbing pipes in the past were made of galvanized steel, cast iron or lead. Today these materia...

Posted by H Davis Nov. 28, 2017, 1:30 p.m. Hot water 1 Responses

What is the best insulation Under 2" Cement flat Roof in NYC?

...leaks? Maybe 2 layers? The base for the roof will be Metal beams. Thanks, Rafael, Brooklyn We would propose you use a rigid board insulation for a flat roof, ...

Posted by Rafael Mor March 29, 2019, 5:19 a.m. Roof assemblies - new construction 1 Responses

What is the best way to insulate a 1780 brick federal with stone foundation in New York?

...leaks. Any advice is apreciated. Insulating the outside of the foundation is a much better idea if you can do it. Insulating the interior of a stone foundation ...

Posted by carole roseman Jan. 5, 2020, 2:39 p.m. Foundation and basement improvements 1 Responses

Improving the efficiency of a home built in 1978 during renovations, do I need an HRV?

...leaks make the HRV not effective? The only way to truly know if an HRV is required in an older home would be to do a blower door test to measure the rate of a...

Posted by joe cruikshank Feb. 8, 2020, 12:08 p.m. HRV and ERV 1 Responses

Why is there mold on particle board outside vapor barrier on new addition?

...leaks in the roof, or water running down the exterior walls. We wonder whether the mould is caused by condensation between the vapor barrier and the particle bo...

Posted by Christine ML June 7, 2020, 1:35 p.m. Wall assemblies - renovation 1 Responses

Should I vent the space between a block wall and vapor barrier?

...leaks in the spots of the basement I can see and since demo it has rained and still no water. If I’m understanding you, keeping your poly vapor barrier away fro...

Posted by Nick Santore Oct. 10, 2020, 2:03 a.m. Basements improvements 1 Responses

How do you remove moisture and condensation from basement walls?

...leaks from the outside coming in either. I feel like the insulation is wrong and the insulation and the plastic barrier are creating the issue. What should be...

Posted by Aaron Keating July 27, 2019, 4:51 p.m. Basements improvements 3 Responses

Is this a good way to insulate drafty windows?

...leaks around windows is important, but I think your solution lies more in caulking or tape. I’m having a bit of a hard time visualizing how what you describe, s...

Posted by Robert Schmidt Feb. 6, 2021, 5:47 p.m. Windows and doors 2 Responses

What is the best way to frame window openings when adding exterior insulation?

...leaks and preventing water leaks. That means air seals around the exterior of windows and sloping window sills to make sure any water that may infiltrate can dr...

Posted by Anwas Qwelten May 30, 2019, 8:16 p.m. Windows and doors 1 Responses

How does a Passive House handle floods?

...leaks, there are a couple of easy steps you can take to prevent damage – place washing machines and water heaters on a tray with a drain and have easy shut off ...

Posted by Wendy Tsao May 7, 2018, 12:46 p.m. Foundations and Basements 1 Responses

When I use my stove hood I get smoke odours in my home, is that due to negative pressure and how do I fix it?

...leaks in the walls. That would be the case with a home built in the 60s that has not had a major renovation to improve thermal performance and air tightness. Th...

Posted by Anonymous Dec. 11, 2017, 12:37 p.m. Healthy indoor air quality 1 Responses

How do you seal windows from the exterior for water and air but not create a vapor seal?

...leaks, the source of any moisture in there would be the framing lumber itself, which as an ability (or at least should have the ability) to dry to the other sid...

Posted by Piyush Prince Nov. 7, 2018, 12:10 a.m. Windows and doors 1 Responses

What is the best way to deal with a drop ceiling in a high humidity room?

...leaks - and footer the present to an extent because the condensation/moisture that would be potentially trapped in there by a barrier would cycle on its own. Wa...

Posted by steve Roberts Dec. 24, 2019, 8:01 p.m. Walls and ceilings - interior surfaces 1 Responses

What is the process to seal a house using Aero barrier spray?

The aero barrier will not work in the vertical plane. Can you explain this concept? the vertical plane need another method to seal? The Aerobarrier air barrier...

Posted by Santiago Pacheco Feb. 13, 2020, 11:06 a.m. Air and vapour barriers 3 Responses

How do I get rid of carpenter ants?

...leaks) or it could be anywhere in your walls or roof where there is either air leakage causing condensation, or a leak letting in rain water. If you regularly...

Posted by Shawn B Nov. 14, 2017, 10:27 a.m. Pest control 1 Responses

Why is there frost on the underside of my roof overhang?

...leaks transport a lot of H20.

Posted by George Paul March 23, 2020, 12:10 p.m. Roof assemblies - renovation 3 Responses