EIFS (Exterior insulation and Finish Systems) also known as synthetic stucco.
That was a quick overview of the EIFS process
Kick out flashing is a very important part of the EIFS install that seems to be over looked by contractors. We have an article explaining kick out flashing including what it is used for and how it should be installed.
Another important aspect of an EIFS installation is a water drainage system which we have covered in depth for you in a separate article as well. The Water Drainage System is very important to get right because if you don’t the substrate of the structure could be damaged if it is not used. We have taken the Water Management System on huge step further with our Water Prevention System.
Use an approved EIFS Sealant when caulking Synthetic Stucco
A low modulus approved Sealant is used as a weather sealant in order to seal joints. This sealant is used in order to have the best paint-ability where painting is required. A durable watertight, flexible seal will form and the adhesion to EIFS and other porous surfaces is reflected in an outstanding curb appeal for your building. Dryvit or any premium primer will be acceptable in order to ensure proper adhesion to EIF System and other porous surfaces such as masonry surfaces. The Spectrem line is recommended for use on new and remedial construction as a weather seal. Sealant may be used for restoration as well as repairs. It can be easily painted over with great results using an EIFS manufacturer paint product. Dryvit offers a sealant that at 50% compression at 70 degrees c (158 degrees f) on limestone, brick, concrete as well as concrete showed no stains after 14 days. Your Exterior Insulation and Finish System surface must be free of any foreign substances such as water, frost, grease or oil and including old sealant, dirt and efflorescence A base coat of primer should be used. In order to have a warranty for your Exterior Insulation and Finish System sealant from Dryvit a field adhesion test shall be utilized by the contractor in order to verify the adhesion characteristics as well as the compatibility with the specific materials you are using as an Synthetic Stucco sealant. You may follow Dryvit’s Field Adhesion Test Procedure with the results being submitted to Dryvit’s Warranty Department.You may apply the primer full strength with a brush or a roller. Applying a thin coat that is uniform and no more than 1 mil when wet. You do not want to over apply the sealant although some very porous surfaces may require a second coat. The primer must be dry before applying the sealant. It should take the primer about 15-30 minutes. You must do the priming and sealing on the same day. If the sealant is not applied on the same day you would have to reprime. Metal and such non-porous surfaces must be clean and rust free. You may use a solvent to clean it with which is available at most sealant / building supply houses.
Kick out Flashing is a very important factor in Exterior Insulation and Finish System
Kick out flashing is something I find myself talking about a lot when we are talking EIFS, and residential applications. When the roof of a house with EIFS cladding terminates into the wall there is always flashing there which is good, but traditional flashing will not cut it when it comes to EIFS, and I will tell you why. Traditionally the water will run down the roof in the flashing installed, but at the end of the roof the water drops into the gutters,unless you installed an 1″ or 2″ of foam to the OSB of the house. That would make the traditional flashing flawed where the flashing actually drains the water right to the back side of the foam. This is where a kick out flashing comes in. You will take the stamped metal kick out flashing and tuck it under the existing flashing. The existing flashing will have to be pulled up with out damaging the existing shingles. The kick out flashing should slide up under the existing shingles for at least 8 inches. With the new flashing in place the water runs down the roof and into the kick out flashing with diverts the water into the gutter instead of just running of the edge of the roof. I have included a picture of a typical kick out flashing, so you can get an idea of what one looks like and where to look for the kick out flashing’s on your house. Something note worthy to say is that your EIFS should always be held up from the roof line about 2 inches and a weep track is used at the roof line. When installing along a roof line you would run a chalk line 2 inches above the the shingles and screw the weep track on the line. Then your stucco home wrap is applied to the wall and down into the track, that way if any moisture gets behind the foam it will run down the Stucco Home Wrap into the track, and out the weep holes. When the EIFS industry broke into the residential market in the 80’s very few EIFS applicators knew about or were using the kick out flashing. This was something new to the applicator as most commercial buildings have a flat roof and use a metal copping to seal the EIFS at the roof. For this reason alone is the main reason that EIFS is known as a great commercial product but not so good as a residential application, but I will tell you that when properly installed the EIFS product is one of the best products available today. That is even more true today than ever before with the new advancements in EIFS technology, and the fact that the price of the product is much lower today, than ever before, there is no reason that everyone should not have an absolutely beautiful product on their house like EIFS.
First of all, let me thank you for stopping by EIFS Repair and checking our new EIFS Repair Training program. As we always do here at EIFS Repair we listen, and respond. We have had some feedback on the EIFS Repair Kits and it was that businesses wanted training for their employees, so we are now introducing the all new EIFS Repair Training program. The training is done in a couple different ways. One is that we do the training here in our facility in Michigan, and the other is that customer fly’s one of our EIFS professionals out, and they do the training on their site.
The EIFS Repair Training will be done by an EIFS expert with at least 20 years hands-on experience in the EIFS industry. All of our trainers are a master plasterer, which means they have been journeymen plasterers for over ten years. The training will cover everything to look for when doing EIFS Repairs, the EIFS process, and proper installation of the EIFS product. We will cover the most common problems that you will find, and those little things that EIFS contractors just hate to do. The training will teach you how to spot them, and fix them without breaking the bank.
The training will begin with about an hour of explanation of EIFS, and the EIFS process. Then we will talk about the EIFS Repair Kit, how it works, and the tools involved. The EIFS Repair Training, for the most part, will be hands-on training, with a few mock ups of some typical repairs you would see in the field. With these pre-made damaged EIFS samples the trainee has the opportunity to do an EIFS repair for themselves to get a real feel of the EIFS Repair process. Believe it or not, the EIFS Repair process is more of an art than anything else. We believe that there is no better way to learn how to do a good quality EIFS repair than to have one of our experts walk you through it in our new EIFS Repair Training program. The amount of information and specialized training, you could not learn anywhere else, is second to none when you spend the day with one of your EIFS trainers.
The EIFS Repair Training Program comes with a helpful guide you can leave with your employees to refer back to when doing the EIFS repairs in the field. This helpful guide has a overview of the EIFS process step-by-step and the common EIFS Repair things to look for and how to address them.
The EIFS Repair Training Program at a glance
Overview of the EIFS Process
Windows and Doors
The EIFS Repair Kit
The EIFS Repair Training is a one day class, and it is scheduled for 5 hours. Typically we start the classes at 11 am and they go through to about 5 pm with a lunch break at 1pm. The time schedule is completely flexible and can be tailor around your company needs. Fill out our EIFS Repair Training Form and please include your estimated training date, your company name and a working number for us to get back to you.
Our EIFS Repair Training is a flat rate of $800.00. If you attend our EIFS Repair Training here in Michigan that would be your total cost, but if you are out of State you would pay to fly our training to you. The trainer would be flown out the day before the training to have time to setup. The trainer would not be flying with our mockup EIFS samples for the hands on part of the program so the trainer would build the mockups the day before at your facility. Our out of State customers have an extra material cost of $200.00, the extra cost of a round trip air flight for our trainer, and a one night stay at a local hotel. The bottom line for our out of State customers is $1,100.00 plus a round trip flight from DTW.
The EIFS Training is for all Synthetic Stucco, Dryvit, Senergy Sto, Master Wall, and Parex.
The importance of the Fiberglass Mesh in your EIFS Repair Kit
The Fiberglass Mesh keeps the EIFS cement from cracking. The EIFS cement coat is only 1/8 inch thick and would crack without the fiberglass mesh. The mesh gives the EIFS System strength and with it being fiberglass it has a heck of a lot of flexibility as well. When applying the fiberglass mesh you must overlap the mesh at least 2 inches and the entire foam has to be covered with mesh. Any places that are not covered with mesh are going to crack and spider over time. The Fiberglas mesh is also used before the foam is applied as a back wrap for all the windows and doors. A 9 inch ripe of fiberglass mesh is stapled round each window and door with the mesh face out toward the window or door. Then the foam is fastened over the mesh and the over hanging 7 inches of mesh is wrapped back up onto the foam with the base coat. This method is called backing wrapping. Back wrapping is very important to help water and moisture from penetrating the EIFS System.
Note: EIFS (Exterior Insulation and Finish System) Repair – The Do it Yourself EIFS Repair Kit; for all Synthetic Stucco including Dryvit, Senergy, Sto, Parex, Master Wall
Fiberglass Mesh – EIFS Repair Kit – EIFS – Exterior Insulation and Finish System – Synthetic Stucco
An EIFS Applicator relies on his Paint Brush when doing repairs to feature the EIFS material into the existing wall.
EIFS Repairs and your paint brush explained by an EIFS Applicator
A good EIFS Applicator knows your paint brush is used in just about every EIFS repair or patch. I always feather the base coat and finish coat into the existing EIFS material to obtain a smooth transition from the repair to the existing wall. The one major down fall of EIFS repair is they can been seen in certain light and at times can really look pretty bad. And it can be that the person doing the repair does not know what they are doing or that they did not take the time to get it right. But even when a professional takes his time and everything is done right it can still look pretty bad in the right sun light. One of the most important ways to make sure you are going to make your EIFS patch look it’s best is to feather out the base coat and the finish coat so it is a seamless transition from the patch to the existing EIFS. When using you paint brush you want to brush out away from the patch. The goal is to take away the edge of cement and feather it out. To explain further, we taped off the area when it is ready for base coat and apply the cement mix to the patch. Then pull the tape off and you have a perfectly square patch. Now, you will apply another round of tape about 1 -2 inches from your perfectly square EIFS patch. Take take your paint brush and feather the edge of the EIFS material out to the new round of tape. This will still give you a nice square professional looking patch but very smooth and it will be much harder to see the transition from the existing EIFS to your patch. When you do the Finish coat I like to do the same thing. Keep in mind that you only have so long to work with the finish before it starts to dry and if you continue to mess with the finish coat after it begins to dry you will burn it. Which means you have continued to float the finish after it has begun to dry and that really looks bad and there is really no way to fix it besides letting it dry and doing it again. So, be careful when doing the finish coat. Note: If is 90 degrees and you are doing a patch in the direct sun do not even try to do the second layer of tape.
Exterior Insulation and Finish System (EIFS) – These system will work with Senergy, Dryvit, Sto, Parex and pretty much any Synthetic Stucco repair
EIFS Applicator – EIFS Repair – The Do It Yourself EIFS Repair Kit
EIFS – Exterior Insulation and Finish System installation process
Applying the Finish Coat
The EIFS Finish Coat is applied over the Alpha Base Coat. The finish is troweled on and floated with a plastic float. It is very important to have a smooth surface for the finish to be troweled over, as the finish is only about a 1/16 of an inch thick. There are a few textures to choose from. The main three textures are Fine (which has a small aggregate and looks smooth or fine) , Medium (medium has a slightly larger aggregate and has a pebble look), and Coarse (coarse has even a larger aggregate and has a classic stucco look). When floating the finish it is very important that all floaters use the same technique (every one uses 9″ circles) to keep the wall looking the same everywhere.
It is not a good idea to have EIFS to close to the ground for several reasons. First and foremost, you do not want water to get in behind it so obviously you would not want it right down to the ground. But how high up does it have to be and what do you do with that area that is not done in EIFS down there? That is the question your customer will ask and what the always want to hear is that it will look the same as the rest of the wall. But, more often than not, the 4″ or 8″ that is not done in EIFS down there is just left by the EIFS contractor and the owner paints it the same color and it all flakes off in no time and looks bad.
I would suggest to put a direct apply on the area before sticking the foam and take it up past the 8″ mark and Mesh and brown like normal and then when you run finish you could just run it all and it would all look the same and there would be no foam down there any longer so the water would not get in behind to cause any damage. This way the entire wall looks complete and the EIFS will not fail from water getting in behind the foam.
Seems like a no brainer but I see a lot of buildings with that 8″ gap at the bottom that does not have EIFS or even worse the EIFS with the foam all the way to the ground.