This video is spot on! I built a basement in a very wet area knowing full about how much water I was going to have to deal with, I exclusively used dimple mat combined with an oversized french drain that drains interior to a sump pit. Some notes about the video I saw the dimples facing outward to the back fill? Those pictures don't seem correct. I installed mine 10 years ago and put the dimples pointing directly to the concrete block as to create an air gap and drainage system. I covered the dimple mat with XPS foam. All has performed flawlesly and provided a very dry basement. The sump pump has taken a beating at times! These videos are very great and informative. Often times people have already completed a project and looked back at how it could have been done better.
Minus the XPS I’ve the same. 1000 gallons/day pumped out of my sump. Damp proofed and dimple mat. Just hit four years. They put more drainage gravel than they normally do by the foundation. No issues so far, with less than average settling issues (eg the tiny hairline cracks in block wall mortar, which are normal). I was also surprised by the first picture in this video because my dimples also point with the pyramid, sharp end touching the foundation, to provide some air gap. Honestly, I don’t see how the heck is possibly alleviates hydrostatic pressure. I thought it was really just another level of waterproofing as damp proofing eventually wears out. This mat is impervious to moisture, so nothing’s gonna get through it. Any pressure against it isn’t gonna have anywhere else to go.
@@patty109109 I think we made good choices. The drainage gravel in the drainage system relieves the hydrostatic pressure. Maybe others are in different situations but Im glade it has worked well. My area we have "wet" seasons and eventually towards the end of summer the water really slows down. So it gives the pump a break.
@@ASIRIDesigns Awesome. We won't miss one. I have a detail I like from Greenbuilding advisor on a vapor open / permeable ridge application, would love to hear your take. Cheers!
Another great video. I thought I knew all this and then saw in the detail drawing that you have the dimple mat extending over tne footing and even the drain pipe, providing even more protection to the cold joint between the footer and stem wall. In the drawing, you show a void in that triangular cross section where the dimple mat covers the footer. My concern there is that the weight of the backfill may tug down on the dimple mat. I might consider filling that void with pea gravel for support. Maybe some visqueen to protect the waterproofing from the abrasion of the pea gravel. Maybe overkill, but do you see any negatives, except additional cost?
Good work, I'd suggest more images of what is likely to happen when water wins. I'd push more customers to the video if they could see more. How about a longer form customer relations style 30 minute infomercial like video. I'm thinking Home Time style. Keep up the quality work.
Absolutely, had to get this video out while on vacation so my resources were a bit limited 😅 Will have some more complete content out in the next couple of weeks. Cheers!
short vid, newer build poured wall crack + leaky rod holes, homeowner only leaked in this area ruclips.net/user/shortsNEoESMun2hk in future sure, she might begin ti leak elsewhere, why? lol Because builder boy and B codes backfill with most-all clay and don't waterproof the exterior of wall (damproofing isn't waterproofing) and they don't plug all rod holes with hydraulic cement, all biggie mistakes, oh yes - also imo water does NOT 'always win', heck no, been waterproofing 47 yrs
Very effective. I see that one of the pictures has a dimple mat over styrofoam insulation. Will that insulate disintegrate over time? Is it better to waterproof from the outside and insulate from the inside?
Of necessity, I redid my French drains after being in the house about 18 years. I had the contractor apply a bituthene membrane and then a dimple mat over that, with lots of gravel. Be careful though, the primer applied to help the bituthene adhere off-gassed for well over a year, and this was only done on the rear of my house, one quarter of the circumference. The back was the direction of hydrostatic flow. You don’t expect this kind of problem, and when it happens your options for dealing with it are few. Off-gassing hasn’t been properly studied with many home products. There can be significant levels of concern below the odor threshold. The only way to really know is to take air samples, and then in a large Dewar flask.
The manufacturer has the dimples facing the wall like your 1st graphic and I found another manufacturer's installation guide and they said dimples facing the wall too, your second graphic and your drawings in this and another video show dimples facing away from the wall, this is an incorrect of installation or is there a reason it's shown backwards?
Inwards is a newer configuration (easier to install and cheaper), but both configurations work. With outwards you have to add a textile (filter fabric) to prevent channel clogging. Inwards you have to add another water proofing (damp proofing) layer to the outside of the foundation wall because the drainage mat isn't doing that job anymore.
I think dimples always facing the concrete , an air barrrier is built to allow water vapour to go away, vice versa won't make any meaning, dimples are there for a reason, If I am wrong please correct me
I already purchased your wall detail drawings due to a video you posted - really great work! I have one question: what is your take on a below grade foundation frost wall where my walk-out basement is sitting on. Would you install a dimple mat here aswell? Or is that wasted cash due to the fact that it doesnt really need to hold off water...?
So important. Our 1973 house is dealing with bad water issues because they thought a layer of asphalt-based "waterproofing" would be enough. Dimple mats seem like a no-brainer but what about the fiberglass mat systems?
The fiberglass drainage/insulation systems work just as well, though I think their "thermal performance" is a little more than a marketing gimmick. As far as drainage though, they're good.
@@ASIRIDesigns Good to know! We're planning a build for later this year and the fiberglass system offers a good warranty but I wasn't familiar with it. Thanks. 👍
you absolutely need to waterproof exterior B walls, not damproof them and they should be backfilled w/most--all gravel, clay and sand will settle and will loosen--pull down dimpled membrane and visqueen hence #1 choice is gravel backfill but one needs to be careful when backfilling with equipment, interior drainage systems are a scam, liars, cons, bet.
Half those pics appear to be showing the dimple mat with the dimples facing outward instead of inward. Given what has just been explained, shouldn't the dimples be facing inward towards the building? If it's facing outwards you would not get the gap you want, right?
It's actually more effective faced outward with filter fabric or tiles placed in front of it. Faced inward the dimple mat creates a water proof layer that prevents ground water from entering the air channels of the mat. Essentially you're just moving the problem one layer further from your wall. Helpful, but not as complete a solution as actually draining away the water column and relieving the hydrostatic pressure as a result. Eventually the inward faced mats will have gaps at the seems or other failures and so water will enter... And then the mat will perform like you expect, draining via the air channels. So some installers save time/cost by installing inward and others install outward with filter fabric.
@@kg4lod Thanks for sharing that. I recently had my foundation treated with Miradrain 6200, which has the dimples covered with the filter fabric. As per the manufacturer, it is installed with the dimples facing outward, but I never really understood why. Thank you.
*A Design Guide To Dry & Comfortable Basements eBook* : asiri-designs.com/shop/ols/products/basement-design-guide
This video is spot on! I built a basement in a very wet area knowing full about how much water I was going to have to deal with, I exclusively used dimple mat combined with an oversized french drain that drains interior to a sump pit. Some notes about the video I saw the dimples facing outward to the back fill? Those pictures don't seem correct. I installed mine 10 years ago and put the dimples pointing directly to the concrete block as to create an air gap and drainage system. I covered the dimple mat with XPS foam. All has performed flawlesly and provided a very dry basement. The sump pump has taken a beating at times! These videos are very great and informative. Often times people have already completed a project and looked back at how it could have been done better.
Minus the XPS I’ve the same. 1000 gallons/day pumped out of my sump. Damp proofed and dimple mat. Just hit four years. They put more drainage gravel than they normally do by the foundation. No issues so far, with less than average settling issues (eg the tiny hairline cracks in block wall mortar, which are normal).
I was also surprised by the first picture in this video because my dimples also point with the pyramid, sharp end touching the foundation, to provide some air gap.
Honestly, I don’t see how the heck is possibly alleviates hydrostatic pressure. I thought it was really just another level of waterproofing as damp proofing eventually wears out. This mat is impervious to moisture, so nothing’s gonna get through it. Any pressure against it isn’t gonna have anywhere else to go.
@@patty109109 I think we made good choices. The drainage gravel in the drainage system relieves the hydrostatic pressure. Maybe others are in different situations but Im glade it has worked well. My area we have "wet" seasons and eventually towards the end of summer the water really slows down. So it gives the pump a break.
We are huge fans of your work and Building science lessons. Thank you so much for sharing and putting this great stuff out there. 🙌🏻
Thank you so much for the kind words, I'm glad to hear it's been helpful. More coming every week!
@@ASIRIDesigns Awesome. We won't miss one. I have a detail I like from Greenbuilding advisor on a vapor open / permeable ridge application, would love to hear your take. Cheers!
Your channel is the perfect compliment to the Matt Risinger Buildshow channel. Would be great to see a collaboration between the both of you.
Another great video. I thought I knew all this and then saw in the detail drawing that you have the dimple mat extending over tne footing and even the drain pipe, providing even more protection to the cold joint between the footer and stem wall. In the drawing, you show a void in that triangular cross section where the dimple mat covers the footer. My concern there is that the weight of the backfill may tug down on the dimple mat. I might consider filling that void with pea gravel for support. Maybe some visqueen to protect the waterproofing from the abrasion of the pea gravel. Maybe overkill, but do you see any negatives, except additional cost?
Good work, I'd suggest more images of what is likely to happen when water wins. I'd push more customers to the video if they could see more. How about a longer form customer relations style 30 minute infomercial like video. I'm thinking Home Time style. Keep up the quality work.
Absolutely, had to get this video out while on vacation so my resources were a bit limited 😅 Will have some more complete content out in the next couple of weeks. Cheers!
short vid, newer build poured wall crack + leaky rod holes, homeowner only leaked in this area ruclips.net/user/shortsNEoESMun2hk in future sure, she might begin ti leak elsewhere, why? lol Because builder boy and B codes backfill with most-all clay and don't waterproof the exterior of wall (damproofing isn't waterproofing) and they don't plug all rod holes with hydraulic cement, all biggie mistakes, oh yes - also imo water does NOT 'always win', heck no, been waterproofing 47 yrs
Very effective. I see that one of the pictures has a dimple mat over styrofoam insulation. Will that insulate disintegrate over time? Is it better to waterproof from the outside and insulate from the inside?
Of necessity, I redid my French drains after being in the house about 18 years. I had the contractor apply a bituthene membrane and then a dimple mat over that, with lots of gravel. Be careful though, the primer applied to help the bituthene adhere off-gassed for well over a year, and this was only done on the rear of my house, one quarter of the circumference. The back was the direction of hydrostatic flow. You don’t expect this kind of problem, and when it happens your options for dealing with it are few. Off-gassing hasn’t been properly studied with many home products. There can be significant levels of concern below the odor threshold. The only way to really know is to take air samples, and then in a large Dewar flask.
Why was the dimple mat you showed at 0:30 installed incorrectly? (Dimples out, not against the wall)
What are your thoughts on wood foundations?
The manufacturer has the dimples facing the wall like your 1st graphic and I found another manufacturer's installation guide and they said dimples facing the wall too, your second graphic and your drawings in this and another video show dimples facing away from the wall, this is an incorrect of installation or is there a reason it's shown backwards?
🤣🤣
Inwards is a newer configuration (easier to install and cheaper), but both configurations work. With outwards you have to add a textile (filter fabric) to prevent channel clogging. Inwards you have to add another water proofing (damp proofing) layer to the outside of the foundation wall because the drainage mat isn't doing that job anymore.
I think dimples always facing the concrete , an air barrrier is built to allow water vapour to go away, vice versa won't make any meaning, dimples are there for a reason, If I am wrong please correct me
I already purchased your wall detail drawings due to a video you posted - really great work! I have one question: what is your take on a below grade foundation frost wall where my walk-out basement is sitting on. Would you install a dimple mat here aswell? Or is that wasted cash due to the fact that it doesnt really need to hold off water...?
So important. Our 1973 house is dealing with bad water issues because they thought a layer of asphalt-based "waterproofing" would be enough. Dimple mats seem like a no-brainer but what about the fiberglass mat systems?
The fiberglass drainage/insulation systems work just as well, though I think their "thermal performance" is a little more than a marketing gimmick. As far as drainage though, they're good.
@@ASIRIDesigns Good to know! We're planning a build for later this year and the fiberglass system offers a good warranty but I wasn't familiar with it. Thanks. 👍
Do you need waterproofing and the dimple mat or does the dimple mat act as the waterproofing?
you absolutely need to waterproof exterior B walls, not damproof them and they should be backfilled w/most--all gravel, clay and sand will settle and will loosen--pull down dimpled membrane and visqueen hence #1 choice is gravel backfill but one needs to be careful when backfilling with equipment, interior drainage systems are a scam, liars, cons, bet.
Half those pics appear to be showing the dimple mat with the dimples facing outward instead of inward. Given what has just been explained, shouldn't the dimples be facing inward towards the building? If it's facing outwards you would not get the gap you want, right?
It's actually more effective faced outward with filter fabric or tiles placed in front of it. Faced inward the dimple mat creates a water proof layer that prevents ground water from entering the air channels of the mat. Essentially you're just moving the problem one layer further from your wall. Helpful, but not as complete a solution as actually draining away the water column and relieving the hydrostatic pressure as a result. Eventually the inward faced mats will have gaps at the seems or other failures and so water will enter... And then the mat will perform like you expect, draining via the air channels. So some installers save time/cost by installing inward and others install outward with filter fabric.
@@kg4lod that's really interesting thanks for the comment!
@@kg4lod Thanks for sharing that. I recently had my foundation treated with Miradrain 6200, which has the dimples covered with the filter fabric. As per the manufacturer, it is installed with the dimples facing outward, but I never really understood why. Thank you.
Who sells this product ?
The three big box hardware stores (Home Depot, Lowes, Menards) should all sell it under various names like 'foundation wrap'.
simple dimple
In which way can you attached a Dimple Mat to an ICF foundation??? Thanks Liked#12 N Subscribed
Screw the dimple mat to the imbedded plastic strips in the icf. Use the little square washers that you get when you buy the dimple sheet roll.
@@brianwball40 Okay did not know about the square nuts...Thanks!!!