03:19PM | 08/09/06
Member Since: 08/05/06
4 lifetime posts
We need to replace our tar and gravel roof and had 2 different quotes using different materials.

#1 EPDM over new 3/8" plywood

#2 new 1/2" fiberboard, 95fs base sheet in a hot bed of asphalt at 500 degree heat using a type 2 asphalt, torch down SPS 250 granulated cap sheet to new mop down base sheet. Which is a better system? Any suggestions or comments


01:51PM | 08/29/06
Member Since: 11/06/02
1280 lifetime posts
Both EPDM and torchdown modified are fine roof materials. The most important question to consider is that you chase down references and reputation for the installers, as well as the amt of experience they have.... Leaks in either system are generally due to incompettant installation.

I prefer the EPDM for looks and because if it ever leaks, it is easier to find and patch the problem. EPDM comes in two thicknesses. It is also possible to have it in white, if you are in ahot climate, but at higher cost.

OIne thing that concerns me about the hot mop description is that the flash point for that hot asphalt is about 500°F, meaning that if it is indeed heated to that higha temperature, there is a chance of fire in the kettle. Too much heat also makes it more likely to crystalize as it cures, which leaves it brittle and less waterproof. The proper application temp is around 420 to 470 degrees. I would double check with the person who quoted this job if he may have erred.

Excellence is its own reward!

Click to reply button
Inspiration banner


Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.

Reply choose button


Post new button or Login button

To test the boundaries of small-footprint living, interior designer Jessica Helgerson moved her family to a 540-square-foo... Filling an underutilized area beneath the stairs is a smart way to save space. Doing so with a stash of wood, however, is ... The Audubon Society inspired wallpaper in this Adirondack-styled mudroom will get you in the outdoor mood. Grab your coat ... Chalkboard paint opens up endless possibilities for customizing your dresser time and time again. Use chalk to label the c... A fireplace in the bathroom creates the ultimate setting for relaxation. Homeowners often choose electric or gas over wood... This roomy boot tray made from punched metal stands up to all the elements. Station it in your mudroom or at your back doo... There’s nothing like a new set of cabinet hardware to refresh a room. The possibilities are endless: Go modern, rustic, or... FLOR tiles are an affordable way to customize a carpeted floor covering for any space. Make anything from runners to wall-... Chalkboard paint features prominently in this elegant yet unpretentious headboard design. Add a new message daily to reflec... Salvaged boards in varying widths and colors make up the dramatic accent wall in this attic space. The high-gloss white of... The indecisive homeowner need not fret over choosing one (or even two) cabinet colors. The kitchen cabinets in this artist... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... Simple and striking, a couple of pieces of "lovingly used" furniture creates a special kind of charm. A weathered chair fo... First dress up your metal shelves with a coat of paint in an accent color that complements your kitchen decor. Then arrang... Dark wood shelving and a matching upholstered bench keep this closet sleek and refined. The large window brightens the sub...
Follow banner a
Newsletter icon Flipboard glossy Facebook Twitter Pinterest Youtube Rss icon