Floor joists / Discussions

Why insulate the walls rather than the floor joists in a crawlspace?

...floor joists on one 1/2 of the cottage has R12 between the Joists, the other 1/2 looks like it has ceiling tiles between the joists for a bit of insulation, que...

Posted by Ron Monk June 2, 2021, 9:31 p.m. Crawl spaces 2 Responses

What is the best way to Insulate a basement and floor joists that are embedded into the concrete?

...joists are embeded into the wall. How would I properly insulate my basement wall and the embeded floor joists? Right now the home has roxul insulation in the ce...

Posted by David Pereira April 28, 2020, 10:34 p.m. Foundation and basement improvements 2 Responses

Is it ok to add insulation between joists in a crawl space?

...floors felt cold this last winter, making my whole living space cold. Would it be ok to add insulation between the floor joists? Over or under pipes? I want to ...

Posted by Cheryl Bottomley May 11, 2020, 3:17 p.m. Crawl spaces 0 Responses

What is the best practice to insulate a crawl space floor?

...floor, 3 cement block walls, open lattice wall to access crawl space, exposed floor joists 24'' o.c., height from ground to bottom of joists is 36" If you hav...

Posted by austin Fanning March 16, 2020, 8:55 a.m. Crawl spaces 4 Responses

What can I do to prevent mold and musty smells from a crawlspace with a dirt floor?

...floor crawl space with about 24 inches from dirt to underside of floor and it gets wet which causes the floor joists and under flooring to get damp and moldy. W...

Posted by bonna gordy May 15, 2020, 8:16 p.m. Crawl spaces 1 Responses

How do I condition my crawl space with a dirt floor?

...floor and below grade concrete walls. the access to the crawl is from the part basement. i have take out old r10 batts that were in the floor joists. the crawl ...

Posted by Ryan Reichelt Nov. 27, 2020, 12:25 a.m. Crawl spaces 0 Responses

How do I get rid of moisture with cement floor crawl space that has a vapour barrier?

...floor joists are fine but I noticed that barrier is extremely wet. Running a dehumidifier has helped alot but still have moisture. Is there anything else I coul...

Posted by Cindy Chatham 04 chatham Aug. 25, 2020, 4:47 p.m. Crawl spaces 1 Responses

What is the best way to insulate rim joists with EPS and batts?

...floor/rim joists. FYI: cripple wall has no lateral support (only backed with drywall...!?!) Which of the three methods is best when insulating the cripple wal...

Posted by Steve J July 18, 2019, 3:53 p.m. Basements improvements 1 Responses

What's the best way to seal a crawl space and insulate?

...floor joists isn’t really necessary, but you don’t really need to remove the insulation in the joists as long as it isn’t moldy. Left in place is actually even ...

Posted by Steven Johnston Feb. 23, 2021, 12:35 p.m. Crawl spaces 1 Responses

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

...floor, insulation between the floor joists and has 3 - vents to the outside. I am thinking of 1" foam boards on the walls, sealing the floor. There is no moistu...

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

How do you insulate a crawlspace?

...floor joists at about 24" on center. I put 6 mm polythene on the ground and put fiberglass insulation between the joists. Since then I have noticed a lot of con...

Posted by Drew Weistend Nov. 14, 2017, 9:22 a.m. Crawl spaces 1 Responses

Can you provide Crawlspace Insulation Design Assistance?

...floor with several cemented fieldstone pillars supporting the original floor joists (full 8"x4" chestnut and oak beams...now petrified!). Old, unfaced fiberglas...

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

Which insulation do I use for interior walls of a framed in bunker?

...floor and metal pump pan. The building is on posts. Need to determine best way to insulate along studs in bunker and floor joists for temp and moisture insulati...

Posted by Dale Klubertanz March 23, 2021, 10:38 a.m. Insulation and soundproofing 1 Responses

Should I insulate a crawl space from the outside?

...floor joists are cast into foundation walls which means trapped water could lead to rotting joists. My preferred option is to digout the foundation from the o...

Posted by Ryan Argente March 7, 2021, 5:07 p.m. Crawl spaces 0 Responses

Which exterior insulation is best to create at thermal break in an bungalow in Alberta?

...joists. This space is now wonderful to live in. However, at -40, we experience frost and freezing temperatures on the main floor in the corners of the house. ...

Posted by Rebekah Barnes Jan. 17, 2020, 10:07 p.m. Wall assemblies - renovation 1 Responses

Can you use blown cellulose overtop of fiberglass insulation?

...floor boards to insulate between the joists? If so you’d need a vapor barrier at the top likely. Is it also safe to assume the garage below won’t be heated? Y...

Posted by E McKinney Feb. 3, 2021, 1 p.m. Architecture and plan design 2 Responses

Where is the correct vapor barrier location in Chicago?

...floor joists on top of the wall extend out 30 inches from the foundation wall. There is an overhang, common in a lot of raised ranches. I want to insulate this ...

Posted by Joel Peerson Jan. 31, 2021, 7:31 p.m. Air and vapour barriers 2 Responses

What is the best way to insulate embedded joists in a basement Montreal Home?

...joists are fully embedded inside the concrete slab. Hence, the floor above close to the baseboard is very cold. My plan is to fully demo the basement walls an...

Posted by Emil Idf Jan. 7, 2020, 8:34 p.m. Foundation and basement improvements 1 Responses