Wally for the project kick off segment of the roofing it right miniseries on installing a commercial roof from start to finish.
Roofing section mastic build up.
Built up roofing application guide two section rs 4927 2 14 replaces 11 13 2 1 1 0 general information 1 1 the following section provides the application specifications currently available from johns manville jm for built up roofing membranes and covers both hot asphalt and cold adhesive applications included in this application guide.
Then cover the entire roof with a layer of insulation and secure it with a staple gun.
Roofing shingles and materials plus factory certified roofers including ratings from real homeowners from north america s largest roofing manufacturer.
For roof slopes from two units vertical in 12 units horizontal 17 percent slope up to four units vertical in 12 units horizontal 33 percent slope double underlayment application is required in accordance with section 1507 2 8.
Whether you re an experienced commercial roofer a steep slope roofer thinking of adding low slope services or just like to learn from the best you ll want to join gaf senior commercial training specialists dave scott and wally brown dave amp.
One form of roof mastic is a sealer or cement that is used on any area of the roof where water infiltration could occur such as along the edges of the flashing at seams and corners and over nails and screws.
Roofing mastic see acrylic roof mastics asphalt roof mastics.
Roof tar is typically a more liquid sealant that if improperly applied can make a horrible mess on the roof as you can see in our second photo below.
It can come in buckets allowing people to apply it with a palette knife or in tubes that can be fitted into a caulking gun.
Roof patch putty can be applied using a trowel to fill low areas.
You can also use a general epoxy concrete filler and apply mastic on top using a trowel.
Next use 1 inch nails to secure some metal edging to the perimeter of the roof.
Before you install metal roofing repair any damage to the wood under the shingles.
Burmastic built up roofing systems tremco roofing s burmastic cold process built up roof system has a long track record in providing superior weatherproofing for all kinds of buildings.
Hot applied tar has been widely used for nearly 100 years as an inter ply coating in built up roofing.
Mastic is a flexible sealant that adheres to almost any material.
Cold applied trowel grade asphalt roof mastic for patching leak repairs and flashing installations on asphalt built ups and modified bitumen roof systems garla flex highly rubberized asphalt roof mastic seals around roof joints metal pitch pockets and metal edges.
