Philadelphia is the land of row houses and row houses have flat or low-sloped roofs which are completely different than the sloped roofs found on other types of homes, and these pose different challenges that those other types of roofs. CD Kaller works on a lot of row houses offering inspection, repair, and seal coating services.
Modified Bitumen Roofing
Modified Bitumen - also called Torch Down - is a multi-ply roofing system that is often considered the best due to its thickness, durability and flexibility. GAF has several modified bitumen systems available to build your flat roof from the roof decking up or over existing roofing material. These are multi-ply membranes and can include a layer of insulation. Modified Bitumen systems are ideal for new roofs or complete replacements. The top caps are available in either black or white. White will help reduce cooling costs - see cool roofs. CD Kaller is a GAF certified Master Elite Contractor.
GACOROOF Silicone Sealer
Silicone sealers such as GACOROOF can be used to seal existing roofs - especially residential row homes. GACOROOF creates a seamless membrane to seal and repair existing roofs and permanently protect against leaks, permanent ponding water and the damaging effects of severe weather. Silicone sealers are excellent for homes, garages and patio covers, sheds and barns.
In addition to sealing your roof, these sealants are also energy efficient, their light color reflects sunlight to save energy (see Cool Roofs.
Roofs treated with GACOROOF can be warrantied up to 50 years depending on the underlying condition of the roof.