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RV EPDM RUBBER ROOF REPAIR PROCEDURES
Clean:
1.
Scrape away all existing patch materials, caulking and all traces
of silicone or silicone caulking.
2.
Optional: Remove edge metal which around roof edge. If you do not
remove edge metal, you can overlap the outside of the metal with
RoofSeal.
3.
Clean all dirt and oxidation from
roof surface. The exact method depends on roof material and type of
contamination or oxidation. If oil
or grease are present, remove them FIRST.
For small repairs to EPDM RV use a
plastic abrasive kitchen scrubber in repair areas. Scrub until clean then wipe or blow away
all particles. This is the best method.
BASIC CLEAN:
*
Stiff Broom or blow off.
* Use 1:3 Bleach/Water mixture on tough stains & mildew using
scrubber.
* Clean using a stiff broom (or powerwash if leakfree) to remove all loose
surface materials.
* Let dry thoroughly.
*
For stubborn stains or grease, use
ETERNACLEAN together with clean rags
Important:
When using
Eternabond tape, all traces of silicone sealants or
waxes much be removed. Remove all silicone surface wax with
ETERNACLEAN. Cut out any silicone
or unknown caulking.
Power wire brush old joints to remove all surface silicones. Re-caulk with
M-1
sealant.
Re-Caulk & Repair:
5. With roof penetrations
(vents, hatches, etc), you have a choice to remove, or leave on and
"flash" around them (good time to upgrade any of these). It simplest
to leave them on. Remove ALL old sealant using a putty knife as a
scraper. Clean roofing and flashing surfaces as above. Replace any rusty screws with new stainless
ones. Put
M1 sealant into screw holes before putting in new screws.
6. Rough up areas
to be caulked with a plastic scrub pad or rough sandpaperor wire brush. Remove
particles. Caulk gaps, voids and cut-out holes with
M-1. Let
cure 24 hours.
7. Optional: After
caulk cures, repair or reinforce as needed any damaged seams or high
stress areas using
EPDM White
Coverstrip or Webseal.
Apply
Repair / Roofing Materials:
At this point, you can either repair
cracks and tears with
Eternabond Roofseal THEN coat with
Formflex
(discussed further below), or do the entire roof with new EPDM roofing
membrane or patch areas with RoofSeal. Repair
and recoating with Formflex is generally done.
New EPDM Roofing Materials Method.
Click link.
Eternabond RoofSeal White
Application Method:
8.
Now you can apply RoofSeal White. For large areas, use wide product.
and plan
your coverage using overlapping strips like wallpaper. Start at the
BACK and works towards the FRONT of the roof). OVERLAP each piece to
the next about 2 inches.
TIPS: Use a 4" roller, not a 2" to roll-in large strips of material.
Use 2 people. One to pull the tape tight & straight and to gradually pull
backing away AS YOU stick it down by sweeping in gradual circles with
you hand as the backing is pulled away. Don't try to pull the whole
backing off at once. Watch the Eternabond DVD movie before applying
product to see these techniques.
9. Along the
base of roof penetrations (vents, hatches etc), put another layer of
Eternabond tape which
wraps up the edge a couple inches.
10.
Put your edge metal back on with new
butyl tape sealant and new
Stainless fasteners and
Sealing Washer. OR use new fasteners, and put
M1 sealant over the top of each one.
OR put another strip of RoofSeal along the entire metal strip (cover the
whole strip, overlapping both sides by 2".
You
now have a great looking and long lasting new roof.
CAUTION: RoofSeal is very slippery when
wet. It is not designed nor recommended for any walking surface.
For walk-deck surfaces you should refinish with a textured
polyurethane deck coating, as outlined in our
houseboat re-roof
procedure.
HOW TO RECOAT A
RV EPDM ROOF
The above link covers the basic process for
recoat of an EPDM roof. Its best to read and follow instructions for
specific products before applying.
More Information:
EPDM
Roofing Materials and Application
Roof Repair Items catalog
pages.
Roof Repair Info & Tips page.
Roofing Membrane Repairs (DIY
information)
New: Our
Houseboat Re-Roof Procedure.
Do it yourself RV roof Replacement, repair, Eternabond roofseal,
A-Seal, RV roof repair, sealant, waterproofing, roof leak repair,
trailer roof repair
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