How To Repair Epdm Rubber Roof Shert When Pulled Up And Separated
EPDM Rubber Roof Seam Repair Methods
How to use EPDM Seam Record & Other Methods at Seams
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Leaky EPDM safety roof seam repair procedures.
How to employ seam tape or strips of EPDM to repair leaky seams in a rubber roof.
This article serial describes an EPDM roof installation study & roof repair history spanning 14 years, from original rubber roof installation (and the mistakes & shortcuts that led to leaks and trouble) to an extensive tear-off and re-roof repair that was made along the entire problem roof'southward lower edge.
We also provide an ARTICLE INDEX for this topic, or you tin try the page top or bottom SEARCH BOX as a quick way to find information you need.
Fix a Rubber Roof Leak using EPDM Rubber Roof Seam Tape
This condom roof on a New York home was installed in 2011. Nigh of the work has proven durable but five years after initial work a couple of roof seams had failed, particularly where the new EPDM roof had been seamed confronting older EPDM sections by gluing down the EPDM to the paper surface of older insulating roof panels below.
Photo: we've peeled open the seam in an EPDM rubber roof later finding signs of leaks in the ceiling below.
You can see, stuck to the nether-side of the peeled-up EPDM, the wet paper coating that formed the peel of the insulating panels under the EPDM.
That paper contamination on the new EPDM under-side means that simply gluing downwards this seam again wont' exist a reliable repair.
Instead information technology's necessary to clean and seal the seam using a surface-applied strip of repair material.
[Click to overstate any image]
Three Approaches to Seam Repair on an EPDM Roof
At an surface area of open or leaky seam or a cut split or damaged area on a rubber roof, when the damage is sufficiently limited in telescopic that a surface repair is all that'due south needed, you can either
- clean and prime the rubber surface and mucilage down a new strip of EPDM prophylactic roof material itself (method i shown below)
OR
- you tin clean and prime number the surface and apply a pre-gummed peel-and-stick EPDM Repair Tape (method two beneath)
- At the end of this discussion we draw EPDM seam "repair" method #iii - just peel back and glue down old EPDM over the new EPDM, and we explicate why that approach does not piece of work well if insulating board kraft facing has stuck to the under-side of the old EPDM..
Picket out: While these and other minor roof repair jobs are inside the ability of many domicile owners, in that location are the dangers of injury or autumn from the roof surface, and for a larger EPDM installation or repair job we practice not recommend that a homeowner attempt the work.
If yous are not practiced and experienced in EPDM installation y'all won't know what you don't know: you lot'll brand mistakes and have a leaky roof with a short life. The ultimate costs of a DIY safe roof job may be much greater than if you'd hired an EPDM roofing company in the first place.
Method 1: Repair a Leaky EPDM Roof Seam with a new Strip of Prophylactic Roofing
- Sweep off all roof debris
Sentry out: Before applying any EPDM or prophylactic roof repair to a leaky roof seam, check that yous'll accept several days of dry atmospheric condition, then take care to prop open the EPDM seam so that the area can dry out thoroughly earlier y'all seal it up.
Else you'll have moisture bubbles in your roof and y'all may develop a mold problem in the ceiling below. [Photograph higher up]
- Cutting the repair strip of EPDM needed, starting with a fresh, new make clean section of rubber roofing.
- Clean & Prime: Every bit is commonly necessary apply a roof cleaning product to completely clean the rubber surfaces.
Make clean and prime both the roof surface where the patch will exist applied and also the nether-side of the EPDM strip that you've cutting to brand the repair.
Lookout out: if you leave dirt, debris, algae on the rubber surface your repair volition fail speedily. Some roof cleaner primer products are simply sprayed-on, immune to sit, then hosed off with clean water, followed of grade past allowing the roof surface to dry out.
Other EPDM cleaners use solvents and must be handled with care, but may be faster and more-reliable.
- Utilise Adhesive: Mask off the seam expanse to the width of your safety patch strip so that your adhesive spray won't gum up the rest of the roof surface.
For small jobs a can of spray EPDM agglutinative is fine but over-spray is a mess.
- Let the agglutinative to dry to a tacky surface. In our photo to a higher place I've sprayed adhesive on the roof surface and on the pre-cut strip of EPDM rubber.
That white tape in the center of the repair surface area is a seam repair or flashing tape previously applied to cover the open EPDM seam that was leaking.
- Apply the EPDM patch: Starting at one cease and with a helper to keep your repair strip directly, apply the repair strip, adhesive down, to the repair expanse, rolling it down to avert air bubbles
- Roll the EPDM: Finish rolling downwardly the repair strip apartment in place
- Seal the repair strip edges with EPDM lap sealant.
Watch out: Opinion and direct feel: some covering suppliers similar the very un-friendly people at Jim Waters Abode Corporation in Poughkeepsie, New York only will refuse to sell small quantities of EPDM repair materials to yous if they recollect you are a homeowner or a small contractor.
That supplier probably feels they need to protect the "territory" of their major customers. It's an unpleasant experience. I would buy roof repair materials elsewhere. Fortunately all of these roof repair materials for pocket-size repair jobs are widely available as we document beneath.
- Weights? I put a brick weight over any problem areas that are non perfectly flat or are slightly bubbled, allowing the patch to cure and bond flat.
Method 2: Repair a Leaky EPDM Roof with EPDM Prophylactic Roof Seam & Repair Tape
EPDM or safe roof seam tape, bachelor in white and black, and in several widths (typically 3", iv" or six"), is used at roof edges, over border flashing, and to provide an actress seal or a repair seal over roofing membrane seams, splits, or damaged spots.
To install EPDM seam tape follow the specific instructions provided by the manufacturer of your product.
Lookout man out: when buying seam record to check cost, suitability for your roof surface blazon, and the record width. I prefer wider 4" or greater tape widths for repairs equally a more reliable seal over seams and splits or tears in the roof surface.
Don't think you lot can simply buy seam tape and slap it on - that repair won't be reliable. You need to clean the roof surface, and in some cases employ a primer before applying the seam tape.
Here are case seam tape installation instructions from LionGUARD cited in detail below.
Production is a peel and stick cured comprehend tape. Used for covering metal termination confined, drip edge, and /or all purpose bar in seam applications etc. Cover Tape is not for use in flashing applications.
- E'er clean and prime membrane using roofing industry standard products for tape applications.
- Allow primer to dry earlier installing tapes.
- Employ in primed surface area past peeling release paper off of 6-12 inches of tape.
- Stick the tape onto the membrane, while continuing to pull release paper off.
- Brand sure you start on a straight line.
- Continue pulling release paper off as yous move downwards the pre-primed expanse.
- Utilize sharp scissors for cutting the cover tape.
- Utilize metal seam roller with some force perpendicular to tape for proper adhesion. - LionGuard 2019
Sources of EPDM Seam Record for Rubber Roof Repair
- CoFair Products Inc., "Quick Roof" EPDM Roof Seam Tape, black, EPDM, 3-in x 25 ft rolls (under $25. U.S.) sold online and at TrueValue hardware stores
- EPDM Seam Tape, Automotive Dominance info@AutomotiveAuthorityLLC.com www.automotiveauthorityllc.com - we take used this supplier's EPDM seam tape for an EPDM / rubber roof repair
- Eternabond Roof Repair tape - from roofing textile suppliers, building suppliers, and online at Grainger Industries.
Designed specifically for granulated roof surfaces and surfaces requiring a deeper seal, this tape can exist used on "all types of roofs" including roofs, surfaces, gutters, skylights, flashings, copings, tubing - includes actress sealant. Bank check prices: on sale online at a "web price" of about $140. USD for a 6" ten 25 ft. 65 mil scroll in black or white.
- GacoFlex Roof Tape, Self-Adhesive seam record, 2" x fifty', sold at building and roofing supply stores such equally Lowes, under $twenty. U.S. This is a "fleece-backed" cocky-agglutinative tape consisting of butyls and EPDM
Website excerpt:
RoofTape is a fleece-backed self-adhesive tape consisting of butyls and EPDM rubber; intended for sealing seams, fasteners, border transitions, small cracks, vents and drains before application of GacoRoof 100% Silicone Roof Coating. - LionGuard Blackness EPDM Coverstrip seam cover tape, v" - 12" in width, in rolls of 50' or 100', black or white-faced EPDM 0.30" (thickness) using black butyl adhesive also 0.30", rolled with a silicone-coated release paper, available from various vendors including All-time Materials, website: www.bestmaterials.com, Email: sales@bestmaterials.com, Tel: i-800-474-7570 or 602-272-8128 $iii.25 per foot
LionGUARD Encompass Record INSTALLATION INSTRUCTIONS [PDF]
- RoofKit Condom Roofing Seam Tape is a butyl tape used to splice two layers of RoofKit rubber roofing membrane into a watertight seam. - sold at Menards Edifice supply stores. $40. for 3" x fifty' curlicue, or under $90. for a 5" 10 fifty' roll.
Method 3: Just Utilise EPDM Lap Seal or Surface-Practical Patch Coating to a Leaky EPDM Seam
In 2012 we removed an improper gravel-end drip border along the lower border of a rubber roof, and we installed a new length of EPDM with proper (apartment) drip border at this domicile in Poughkeepsie, New York.
With Eric Galow nosotros under-took this repair in the commencement place considering the original roofer (non Eric) had used the wrong course of drip edge. The result of the originally-installed raised lip gravel cease drip edge was constant ponding inviting leaks in the roof membrane.
But considering the gravel finish drip edge was well-bonded to the first class of EPDM covering our repair crew decided to pull off the entire first course of EPDM, and then install new proper (flat-roof) baste border without a gravel lip and a new lower-course run of condom covering.
[Click to enlarge whatever image]
The bottom border of the upper run of EPDM was peeled back, the old lower run of EPDM roof was removed, new EPDM was glued down, and the roughly five" lap of the sometime EPDM atop the new EPDM was glued down and too treated with lap sealant.
Within a yr portions of that seam had failed and h2o was bankroll up nether the old EPDM. Nosotros decided to repair this leak before h2o got into the ceiling below.
Sentry out: there are two durable means to repair this sometime-to-new EPDM condom roof: using a glued-downward strip of rubber roofing or using a self-adhesive EPDM roof repair tape.
Those are discussed above. We do not recommend the method described hither - I include it every bit a a diagnostic example of why the original seam failed.
A closer wait at the photo below shows why this roof seam failed.
The upper run of EPDM, parallel to the roof eaves, had been peeled back to allow installation of a new run of EPDM below, along the roof edge.
But peeling dorsum the old roofing left insulating-board newspaper facing stuck to the nether-side of the older roof safety that was to exist and so glued-downward atop the new rubber.
Wherever paper remained the agglutinative did not brand a durable seam. This roof seam, glued down in 2012, had failed past 2013.
Just applying a hulk of sealant over top of an open and leaky safety roof seam, exposed to weather and varying temperatures, may make a temporary ready but ...
Watch out: this method is widely advertised but in my experience rarely provides a durable safe roof leak repair.
I don't recommend this method of roof repair.
...
Go along reading at EPDM ROOF LEAK REPAIRS or select a topic from the closely-related articles below, or see the complete ARTICLE Index.
Or run into these
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- EPDM ROOF LEAK REPAIRS
- EPDM ROOF SEAM REPAIR Tape
- Flat ROOF DRAINAGE SYSTEMS
- FLAT ROOF LEAK REPAIR
- Apartment ROOF Moisture & CONDENSATION
- Low SLOPE ROOFING
- LOW SLOPE ROOF CONVERSION
- MEMBRANE & SINGLE PLY ROOFS
- MODIFIED BITUMEN ROOFING
- MODIFIED BITUMEN ROOF DEFECTS & ROOF LIFE
- Gyre Roofing, ASPHALT & SBS
- ROOF LEAK SOURCE DIAGNOSIS
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