How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Dovetail Greene Your Own Question

Dovetail Greene
Dovetail Greene, General Contractor
Category: Home Improvement
Satisfied Customers: 315
Experience:  Licensed Building Contractor & Certified Building Designer
63990871
Type Your Home Improvement Question Here...
Dovetail Greene is online now
A new question is answered every 9 seconds

Hello. I have a Crawl Space Entrance leak issue. Rain water

Resolved Question:

Hello. I have a Crawl Space Entrance leak issue. Rain water and vermin appear to be getting through the areas seen in the attached picture. Any suggestions to stop the water leak and prevent vermin from entering the crawl space?

Submitted: 1 year ago.
Category: Home Improvement
Expert:  Dovetail Greene replied 1 year ago.

Hello.

My name's Kel.

 

The simplest approach would be to make a lid to fit over the metal enclosure.

Use 3/4" thick pressure treated plywood.

Cut it so it extends 2" beyond the perimeter of the metal.

 

Attach a piece of 1x4 so that it runs along the edge where the lid will butt up against the siding. This piece will lay on top of the metal causing the lid to be pitched for drainage. Attach a piece of vinyl weather along the edge that butts up against the house. The weight and friction should hold the lid tight enough to the house to prevent leakage.

 

Attach pressure treated 2x4 to the under side of the lid that's just slightly smaller the the metal. The 2x4 is positioned to follow the shape. This positions the lid over the pit.

 

Attach a flexible weather stripping next to the 1x4 toward the outside so that the weather stripping rests on top of the metal edge when the lid is in place.

 

You may need to use either caulk or mortar to seal any gaps between the metal and the foundation. Mortar for large gaps -- say 3/4" or greater. Caulk for less.

 

If this is beyond your skills you could hire a handy person.

 

I'm not recommending the clear plastic covers that fit over these type metal enclosures. They won't seal at the house and critters can get between the cover and enclosures.

 

Have I answered your question?

Customer: replied 1 year ago.

Although I already have a lid, I will make a new one with your suggestions. My main concern is the inside areas I pointed out in the attached picture. Water keeps seeping through and vermin just under the metal "U" shaped metal enclosure. I used something like "Chicken" wire but the vermin still manage to get in, especially rats and moles. I want to use cinder blocks around the metal enclosure and use water proof cement. Does this sound good to you?

Expert:  Dovetail Greene replied 1 year ago.

Not quite sure where you're proposing to put the block and cement.

If you're talking around the top --

OK. Will you be able to pitch it away from the house and the metal enclosure?

 

I wouldn't do it on the bottom because there's be no place for drainage.

 

Are the rats getting in under the metal?

Is the enclosure only about 12" tall?

 

You could dig out the bottom of the enclosure. Install galvanized hardware cloth to follow the shape of the inside of the enclosure. Place the hardware cloth against the enclosure. Have it extend about 12" below the bottom of the enclosure. You can get hardware cloth in 1/4" x 1/4" mesh. That should keep the vermin out.

 

Fill will crushed stone for drainage.

Customer: replied 1 year ago.

Rats are indeed getting through the bottom of the metal enclosure and water is draining into the floor of the crawl space. I am in the Seattle/Everett area where it rains a lot during the Fall and Spring months. Its the areas around the metal enclosure that seem to need some water and vermin protection.

Expert:  Dovetail Greene replied 1 year ago.

Two more thoughts.

Can you relocate the crawlspace access point to another place?

Then fill this one in and seal the top with concrete?

 

Is there anyway you could install a drain at the bottom of the enclosure and have snow melt and rain drain to daylight?

That seems hard because the area around the opening seems to pavers and asphalt.

I'm guessing it would be difficult to trench for a drain.

If you could install a drain then you could cement the bottom to keep the vermin out.

 

Is there a gutter for the roof above the pit? what can be done to reduce the runoff on to the area around the pit?

 

Dovetail Greene, General Contractor
Category: Home Improvement
Satisfied Customers: 315
Experience: Licensed Building Contractor & Certified Building Designer
Dovetail Greene and 5 other Home Improvement Specialists are ready to help you
Customer: replied 1 year ago.

There is no other opening throughout the foundation for relocating the crawlspace so I'm stuck with this opening. Also what you probably did not see in the photo I attached is a gutter drain spout to the right which seems to get filled with pine needles and debris from the neighboring trees which overflows to the ground. To avoid direct rainfall, there is a bit of a roof overhang about 3-4 feet from the wall that covers the entrance to the crawlspace so rain water does not affect that area directly unless water pools around the entrance due to ground moisture saturation and the nearby gutter when it gets clogged.

Customer: replied 1 year ago.

Can you suggest any other method to prevent rain water from seeping in and a way to stop vermin from entering?

Expert:  Dovetail Greene replied 1 year ago.

The lid I proposed will keep the rain from seeping in.

An additional step would be to add some flashing under the siding that would extend of the lid by 1 1/2".

 

The lid will also keep any vermin from coming in from the top.

 

I suggested excavating down in the pit another 12 - 18" and installing hardware cloth around the perimeter and then back filling with crushed stone.

This will keep the vermin from burrowing in.

Hardware cloth is made from galvanized strands that form a mesh. the space between the strands is about a 1/4 x 1/4.

 

What leads you to believe these strategies won't work.

 

Dovetail Greene, General Contractor
Category: Home Improvement
Satisfied Customers: 315
Experience: Licensed Building Contractor & Certified Building Designer
Dovetail Greene and 5 other Home Improvement Specialists are ready to help you

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy Bagley, IA
< Last | Next >
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy Bagley, IA
  • Thank you for the expeditious answer. It's good to know you're out there and awake in the wee hours when I finally have time to ask questions about my Jenn Air. Jean Riverhead, NY
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
 
 
 

Meet The Experts:

 
 
 
  • The Home Smithy

    Home Builder

    Satisfied Customers:

    2002
    #1 Home Improvement Expert 30+ years experience
< Last | Next >
  • http://ww2.justanswer.com/uploads/TH/TheHomeSmithy/2011-8-13_11146_homesmithy.500x500.64x64.jpg The Home Smithy's Avatar

    The Home Smithy

    Home Builder

    Satisfied Customers:

    2002
    #1 Home Improvement Expert 30+ years experience
  • http://ww2.justanswer.com/uploads/BS/bshull17/2011-2-11_04125_japic.64x64.JPG Brian's Avatar

    Brian

    Architect

    Satisfied Customers:

    1967
    Licensed Architect- 16 years, L.E.E.D. AP
  • http://ww2.justanswer.com/uploads/ST/Steve555/2013-6-14_144343_Depositphotos4247517S.64x64.jpg Steve G.'s Avatar

    Steve G.

    Handyman

    Satisfied Customers:

    135
    VP of electronic repair company and home theater advisor.
  • http://ww2.justanswer.com/uploads/ER/Erdaram/2011-6-21_14724_ANIEric4Pics.64x64.gif Eric M. Bright's Avatar

    Eric M. Bright

    We Don't Comprehend the Word Can't!

    Satisfied Customers:

    1734
    I've been been doing things for my clients that others have said cant be done for over a 1/4 Century
  • http://ww2.justanswer.com/uploads/rich03dungo/2010-3-17_101556_tshirt2.jpg Rich's Avatar

    Rich

    Home Improvement Enthusiast

    Satisfied Customers:

    674
    Over 35 years construction and home maintenance experience
  • http://ww2.justanswer.com/uploads/AL/alumalite/2012-5-10_234018_shutterstock506249951forJA500.64x64.jpg Phil's Avatar

    Phil

    Mechanical Engineer

    Satisfied Customers:

    409
    Retired contractor, 51 years experience
  • http://ww2.justanswer.com/uploads/JE/jerrymassie/2011-1-15_45937_1111055.64x64.JPG Jerry's Avatar

    Jerry

    hearth products

    Satisfied Customers:

    317
    owned and operated stove retail and service 12 yrs