RV roof Replacement, RV Roof Repair

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RV Roof Replacement Tips

These are the basic processes and options to Re-Roof a RV roof or repair most EPDM roofs. We welcome your ideas and solutions too. Also see our Roof Repair Tips page. Questions? Email us at sales@bestmaterials.com .

Your options are:

1. Remove old roof and replace with a new EPDM.

(most effort, medium price; best if old roof is not well adhered)

2. Roof over the old roof with new EPDM.

(less effort, medium price; best if old roof is well adhered -- if not add fasteners)

3. Roof Over the old roof with Eternabond RoofSeal

(most expensive, lots less work than new EPDM roofing). Eternabond is not designed for foot traffic.

4. Repair old roof leaks with Eternabond RoofSeal, then coat the roof with Formflex 6000 (lowest cost, fastest; good for 10 years).

NEW: EPDM Replacement Roofing Methods and Materials. Here we have the complete process and materials for replacement of your EPDM roof.

Questions? If you have questions about your application, feel free to contact us. Email questions to sales@bestmaterials.com

or CALL 1-800-474-7570

You'll get a prompt response !

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:

This is the basic process for recoat of an EPDM roof using Formflex 6000.

CLEAN, RE-CAULK AND REPAIR:

Clean, re-caulk and repair following the above techniques for Roof Replacement.

APPLICATION:
* Remove any skin at surface (you should have none with a new can)

* Stir with paint stick if material has set for a long period and any separation is visible (you should have none with a new can).
* Apply FIRST COAT with 3/8" or 1/2" nap roller at rate of 75 sq.ft per gallon (VERY THICK).

* Let cure 1/2 to 3 days (depending on temperature). Materials will feel tacky for up to week. This is normal. It will dry to a near semi-gloss finish.
* Apply SECOND COAT as above.
* It will take up to 7 days until all tackiness is gone and material completes a full cure.

CLEAN-UP:
* Soap & Water.

STORAGE OF UN-USED MATERIAL:

* Clean lid area and reseal. Unused materials will keep for years in a relatively cool area like a garage. (just not in the hot sun).

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.

What Tools Are Recommended?

Each job is different, but generally you just need to have on hand just some simple tools:

* Roller - This is the most important tool. It is CRITICAL to "roll-in" and flow the Eternabond adhesive.

* Plastic Pot Scrubber or sandpaper - For sanding & cleaning roof repair surfaces.

* Razor Knife or Roofers Scissors - To cut Eternabond.

* Scraper - To remove old unwanted caulking.

* Caulking Gun - to apply NP1.

Do I Need to Prime Before Applying Roof Repair Products?

For Eternabond tapes, Use EternaPrime when surfaces to be bonded are very dirty (oxidized and cannot be cleaned well). EternaPrime prepares the surface into an adherent platform for the Eternabond tape to adhere to. Also use EternaPrime if the installation temperature will be below 40 degrees F (except when using WebSeal and One Step, which can be applied down to zero degrees F).

NEW galvanized metal materials should be primed in areas to be sealed, as oil type contaminates can remain on the surface.

How Much of an Overlap Seam is Needed When Applying RoofSeal to larger areas?

Two inches of overlap is the recommended "best practice" (2" of each layer of tape).

How Are Seam Areas Repaired & Re-Enforced before Recoating the Entire Roof?

Clean. Remove all silicones. Cut out any loose areas. Caulk any deep areas (use M1 Sealant) then tool to a level surface). Let M1 cure. Apply WebSeal with two inches of overlap. To help hide seam area, apply M1 caulk along edges of WebSeal and feather out (like taping a sheet-rock seam). Apply UV resistant finish coat over WebSeal & caulking (do when you do the whole roof area, or just over the WebSeal if just repairing this area). (UV resistant finishes such as Ultrashield, or UV Protector).

Do it yourself RV roof Replacement, repair, Eternabond roofseal, A-Seal, RV roof repair, sealant, waterproofing, roof leak repair, trailer roof repair