Different jurisdictions have different code regulations but generally speaking, Enviroshake® can be installed over one layer of existing asphalt shingles, provided the roof is structurally sound underneath. There is considerable cost savings since there would be no additional cost for removal and disposal of the shingles. There are considerable environmental benefits to this as well because the old shingles need not be put in a landfill. No.

The exact composition of Enviroshake® is a proprietary trade secret. It is what is commonly known as a composite material that contains plastics, fibers, and tire derived rubber. There are also components that protect it from UV degradation and provide the necessary colouring to replicate the look of cedar shakes. See similar questions...

Yes. Springhouse Shingles can be installed over your existing asphalt roof thereby eliminating expensive tear off and disposal fees. See similar questions...

It is possible, but we recommend removal of the existing shingles to ensure the shingles perform to the manufacturer's specifications and to keep your manufacturer's warranty intact. Installing new shingles over the existing can trap moisture from the old shingles and cause premature deterioration of the new shingles. See similar questions...

Yes. You can apply new shingles over existing shingles, but it depends on the condition of the roof and city ordinance. If the roof has one layer of shingles that are laying flat and the deck is in good condition, the existing shingles typically do not have to be removed. Check with local officials to make sure that building codes are being followed. See similar questions...

Enviroshake® is currently offered in only one colour. It starts out as a brownish grey colour and converts or “weathers” to a silver-grey colour that closely resembles a real cedar roof. See similar questions...

Enviroshake® is recommended for roofs with a pitch of 4/12 or greater. Please consult Technical Support at 1.866.423.3302 or info@enviroshake.com if your roof slope is less than 4/12. See similar questions...

Please call 1.866.423.3302 (toll free in Canada and US) or e-mail us at info@enviroshake.com for the location of a distributor or dealer near you. See similar questions...

We include installation guidelines with each order, but metalwork and roofing installation experience are a must to achieve the protection your home deserves. We suggest hiring an experienced roofing crew locally, or you can hire an expert Summit Roofing crew. See similar questions...

A number of factors come into play in making this decision. Older shingles tend to cup as they dry out and age. The new layer will follow the contour of the existing shingles which may cause your new roof to look bumpy or uneven. Also, the existing rows of shingles must have been run straight when installed. Again, the new layer will follow the old pattern and may lead to a visually unacceptable appearance. See similar questions...

Since metal weighs only 1/3 as much as shingles, you can often attach metal panels without tearing off your existing shingle roof. This eliminates the cost and problems of disposing of the old shingles. The best way to do this is to attach 1" x 4" or 2" x 4" furring strips at 24" o/c parallel to the eave and ridge. Check local codes to determine if tearing off shingles is required in your area. See similar questions...

In the United States, asphalt shingles are categorized as either organic-based or fiberglass-based. Organic-based asphalt shingles are manufactured with a base (also termed mat or substrate) made of various cellulose fibers, such as recycled waste paper and wood fibers. This organic base is then saturated with a specially formulated asphalt coating and surfaced with weather resistant mineral granules. See similar questions...

Shingles -- also called varicella-zoster -- is a painful skin disease caused by a reactivation of the chickenpox virus. It is distinctive because it affects only one side of the body. The early signs of shingles usually develop in three stages: severe pain or tingling, possibly itchy rash, and blisters that look like chickenpox. See similar questions...

Yes, but the preferred method is removal. The Uniform Building Code allows two (2) roofs on commercial (flat) buildings and three (3) roofs on residential(steep) buildings. Removal allows for inspection of the substrate, and the elimination of any wet, rough, and/or unstable existing materials. See similar questions...

Existing homes can easily have insulation installed in most ceilings and under timber floors, space permitting. However, walls and vaulted ceilings can only be insulated during the recladding or replastering process. See similar questions...

Yes, when you have an electrical interface for the functions you want to control, provide that information to DWS and we can guide you through the process. B. In the event you have no electrical interface, DWS can suggest retrofit kits for your specific application. See similar questions...

IKO agrees with and supports the ARMA position that nails are the preferred method of fastening asphalt shingles due to their superior holding strength. The following fastening tips apply to most IKO shingles; (check specific product application instructions for further information): Correctly place and position fasteners below the sealant strip, but above the cut-out on three tab shingles, and in the nail line on laminated shingles. See similar questions...