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Questions tagged [encapsulation]

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Cut crawl space vapor barrier?

I am in the process of adding a dehumidifier into my crawl space following the encapsulation. The previous owner have vapor barrier installed without a dehumidifier. The crawl space floor is not ...
Chris's user avatar
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Removing underlayment from asbestos tile

We are renovating our bathroom/laundry room in a 50's ranch built on a slab foundation. Previous owners installed a floating laminate click lock floor, which disintegrated due to the movement of ...
Hyfdgb ok's user avatar
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Crawl space encapsulation question

I got recommendation to have my crawl space encapsulation and with dehumidifier. The company who sent the inspector said it will reduce the humidity on my soil. However, my question is that if the ...
Steel's user avatar
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Should I remove or cover existing, damaged crawl space encapsulation plastic?

I live in Toronto, Ontario, Canada. I purchased crawl space encapsulation poly (10 mil plastic sheeting) for a 16 x 20 ft area. The 6 mil poly that is currently there has failed and is torn in a few ...
Louis Schreyer Duarte's user avatar
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2 answers
147 views

Are bare stacked bricks in crawlspace wall an issue?

I’ve recently had structural issues in my crawlspace addressed by a foundational company (installed floor jacks and wooden support beams). However, after inspecting the space myself, I’ve recently ...
Carlton's user avatar
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4 answers
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Do I really have to use special primer to encapsulate lead paint?

I live in a 100 year old house with my wife and 6 year old. I’ve recently gone down the lead paint rabbit hole online, as I realized that some of the trim in my home has lead paint. Usually under ...
RandolphRobertson's user avatar
1 vote
1 answer
162 views

Lead encapsulation paint on top of high quality new paint?

My 1yo daughter came back with slightly elevated lead levels (5.3). Our house, which we've rented for the last six months, is old but has been extensively renovated and painted many times in the last ...
eumaximizer's user avatar
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1 answer
1k views

How to encapsulate mastic/cutback that contains asbestos on plywood subfloor?

We're doing some renovations and got to the flooring and I'm unsure how to proceed, so I'd love some input. A few things for context: House was built in 1961 Single story Raised foundation 3/4 ...
Matt's user avatar
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When sealing a crawlspace, should the vapor barrier go in front of or behind wood posts resting on the footing?

Boise, ID (zone 5). I'm encapsulating the crawlspace both as radon mitigation and to reduce heat loss (currently no insulation down there). Under the floor joists are some beams supported by 4x6 posts....
Vulcan's user avatar
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2 votes
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111 views

Crawl Space Encapsulation: How to deal with the "Chamber of Secrets?"

I have a south Louisiana home built in the 1950's with a vented crawl space. In the 70's, a den was added with a slab on grade foundation. In this addition, the back porch was converted into a ...
dwest_netdev's user avatar
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Can the masonry on the outside of our fireplace be encapsulated, or must it be rebuilt?

During the inspection on a prospective home, inspection revealed the fireplace needs to be rebuilt bottom to top. There are cracks allowing moisture in. The estimate from the first fireplace ...
Kelly Roberts-Wheat's user avatar
2 votes
2 answers
3k views

Filling in gaps around radiator pipes

So I've been sleuthing on here for a minute to find an answer to my special quirk here but couldn't find it so now I'm asking. So I have some annoying holes near my radiators but they connect downward ...
FooBun's user avatar
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2 answers
6k views

How to safely handle a (likely) asbestos popcorn ceiling encapsulation?

We have a cottage that was built in the 70s. I had our asbestos tiles (tested by a company, some were 0.5% asbestos some were 2% asbestos) covered with quarter inch mahogany underlay and then sheet ...
JS99's user avatar
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0 votes
2 answers
64 views

how should I determine the requirements for my specific crawlspace encapsulation?

I live in the San Francisco Bay Area. Low humidity and mild climate year round. I don't have any problem with mold or humidity in my vented crawlspace, but it is musty and I want to prevent that musty ...
rebar's user avatar
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1 vote
3 answers
683 views

Should the foundation wall be insulated when encapsulating a crawl space, or not?

I've seen conflicting info on this. Some sources say that you shouldn't insulate your foundation wall because moisture can get trapped between the insulation and the wall. Others say that the ...
brentonstrine's user avatar
4 votes
1 answer
714 views

Why can't an encapsulated and dehumidified crawl space have vents sealed off?

I found SECTION R408.3 of the International Residential Code which says that unvented crawl spaces are only allowed if one of the following is true: There is exhaust ventilation fan running ...
brentonstrine's user avatar
0 votes
1 answer
152 views

Insulating/encapsulating crawlspace with HVAC ducting questions

In the PNW/Zone 4 climate. The house I am purchasing built in 1942 with an addition added had an inspection performed and it was noted that some of the fiberglass insulation installed under the ...
redlude97's user avatar
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1 vote
2 answers
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How to encapsulate asbestos around water heater exhaust pipe and cinderblock wall?

It was brought to my attn that there's asbestos insulation around the exhaust pipe of my water heater. I planned to have an energy audit on the house which involves creating negative room pressure ...
cr0's user avatar
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2 votes
2 answers
2k views

Does Age of Home need to be considered when encapsulating crawl space?

I have had my crawl space encapsulated. It has made a big difference in the air quality inside the home (80 years old). However, I am now seeing cracks throughout my home in the walls closer to the ...
Robin's user avatar
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0 votes
1 answer
167 views

How should holes in a crawlspace liner be fixed?

I had a company encapsulate my crawlspace with 20 mil liner. The liner installed has 3 dime size holes as well as a 4-5 inch gash they covered with tape. They now would like to cover the holes with ...
Ivan's user avatar
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1 vote
1 answer
950 views

Can I use a vapor barrier paint instead of polyethylene sheets to encapsulate my crawlspace?

I was looking into "encapsulating" my crawlspace by some manner or other. From what I can tell the way to do this involves (primary) some thick poly (.15 or more) along the the soil and up the walls....
iamkrillin's user avatar