Humidity / Discussions

How do you fix high humidity levels in a basement?

...humidity inside my home is still high 50-65% . Furthermore, a contractor recommended installing an air purifying system, adding additional insulation in the a...

Posted by JR Tadinac Aug. 21, 2019, 11:26 a.m. Healthy indoor air quality 3 Responses

What is the best way to reduce humidity in a basement?

We live in Bellingham WA and our basement was built in the 70's. It has high humidity (70-80%RH) although I don't see any visible damp anywhere. The washer/dry...

Posted by Frank Cooper Oct. 17, 2019, 10:45 p.m. Basements improvements 2 Responses

What is the best way to insulate a crawlspace to keep humidity down and stop odors?

I have a crawlspace with 4' concrete walls and a cement floor, insulation between the floor joists and has 3 - vents to the outside. I am thinking of 1" foam b...

Posted by Dave Bell Oct. 24, 2019, 3:57 p.m. Crawl spaces 3 Responses

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

...humidity pretty static or lower with dehumidification system) met the 3/4 inch plywood subfloor of the outdoor deck. From the inside of this portion of the indo...

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

how do you stop wood stove smoke from entering a home?

...Humidity is 50 per cent or less. Don't want to give up the wood stove. Don. Topsham, ME. You do have a few points here to address, but the first thing I would...

Posted by Don Leaver March 24, 2020, 10:49 a.m. Wood stove and biomass heat 4 Responses

What is the best foam board insulation under drywall

...humidity, cold, and snowy environment. Heating only no cooling. Currently have T1-11 siding, tar paper, R13 FB insulation, and the interior finish is 1/4 plywoo...

Posted by Wesley Pracht Jan. 11, 2020, 8:10 p.m. Wall assemblies - renovation 1 Responses

What is the best heating and cooling system for a slab on grade home?

...humidity. Based on these factors, what type of heating and cooling system should we be looking into? I feel like if we go with a slab on grade we would almost c...

Posted by Matthew Gioia July 7, 2020, 11:03 p.m. Heating and cooling 3 Responses

How do you insulate a cottage crawlspace? It's in the Haliburton Highlands

...humidity, c) remove the styrofoam boundary from underneath, and d) spray insulation on entire perimeter of plywood skirting? Would moisture problems under cot...

Posted by Beata Domanska May 25, 2020, 11:38 a.m. Crawl spaces 1 Responses

Is an HRV or ERV system best in a cold climate?

...humidity levels - which also change around a fair amount based on wind direction, temperature and how close we are to the lakes. So - this is where my question ...

Posted by Michael Duncan Nov. 14, 2019, 3:53 a.m. HRV and ERV 1 Responses

How do you do a vapor barrier in a dense pack cellulose wall?

...humidity in summer. Lots of heat, lots of air conditioning. Are you absolutely sure that no vapour barrier is okay? How do I convince the building inspectors? I...

Posted by Ian MacKay July 26, 2018, 2:48 p.m. Wall assemblies - renovation 4 Responses

How do you remove water droplets from under a crawl space vapor barrier?

...humidity in your crawlspace and increasing your risk of mold forming . Here is our page all about how to insulate a crawl space – Crawlspaces are very rare as...

Posted by Paul Racioppo Feb. 7, 2020, 3:49 p.m. Crawl spaces 3 Responses

What's the best detector & alarm for a back flow valve that has been installed by the utility?

Waste water cannot exit when valve is closed giving a risk of sewage from inside overflowing in basement. Sewer line (Naturally) is below grade and not readily...

Posted by Tom Poe March 27, 2020, 6:38 p.m. Basements improvements 1 Responses

How do you add an Air Exchanger to a house with Hot Water Heat?

...humidity, while providing fresh air for occupants. I would also assume you may have a somewhat older home as new homes now would likely be required to have vent...

Posted by Bob Engelhart June 17, 2020, 10:08 a.m. Ventilation 3 Responses

Can you use polyiso insulation on the exterior of a wall behind cedar siding on the west coast?

...humidity inside the wall assembly.

Posted by Iain Matheson Jan. 28, 2020, 10:38 p.m. Wall assemblies - renovation 1 Responses

What causes moisture on a ceiling in winter?

...humidity. This page about winter preparations covers the topic of condensation forming on walls in winter, and other humidity-related home issues – Tips for p...

Posted by Cheri Banet Jan. 23, 2020, 10:22 p.m. Wall assemblies - renovation 1 Responses

What type of wood can be installed on a radiant floor?

...humidity. Some hardwood species perform reasonably well in this capacity, but we would recommend that you first consider engineered hardwood for added durabil...

Posted by Colleen Blak Dec. 11, 2017, 1:59 p.m. Flooring and stairs 1 Responses

The thickness of vapor retarding latex paint - Is measurement wet or dry?

...humidity, just mentioning it in case you don't have one.

Posted by Kim Boas July 24, 2020, 10:36 a.m. Basements improvements 3 Responses

Can you provide Crawlspace Insulation Design Assistance?

...humidity issues as well. I was thinking of new fiberglass batts in the 24" o.c. joists supported by one of the newer breathable foil membrane products stapled...

Posted by Randy Christensen Dec. 10, 2019, 12:17 p.m. Crawl spaces 1 Responses