Roofing underlayment
AssigneeInternational Insulation Products LLC
InventorDermot Joseph Ennis
Life of this patent
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Abstract
A laminated roofing underlayment is formed by bonding a synthetic roofing underlayment to one side of a layer of insulation, and bonding a reflective layer to an opposite side of the layer of insulation. The reflective layer has a reflective surface forming an outer surface of the roofing underlayment after the reflective layer is bonded to the thermal insulation.
Claims31
A method for forming a roofing underlayment that when placed between a roof deck and roofing material protects the roof deck from water that penetrates the roofing material, the method comprising the steps of:
- (a) bonding a synthetic roofing underlayment to one side of a layer of insulation, the synthetic roofing underlayment being waterproof whereby when the roofing underlayment is placed between a roof deck and roofing material fastened to the roof deck, the synthetic roofing underlayment resists water that penetrates the roofing material from reaching the roof deck while the roofing material is fastened to the roof deck;
- (b) bonding a reflective layer to an opposite side of the layer of insulation, the reflective layer having a reflective surface forming an outer surface of the roofing underlayment after the reflective layer is bonded to the thermal insulation;
- (c) after performing steps (a) and (b), forming the roofing underlayment into a roll;
- and
- (d) placing the roofing underlayment between a roof deck and roofing material.
A method for protecting a roof deck from water penetrating a roofing material placed over and fastened to the roof deck, the method comprising the step of:
- placing a roofing underlayment between the roof deck and the roofing material, the roofing underlayment comprising:
- (a) a first layer of insulation, the first layer of insulation having opposite first and second outer sides;
- (b) a synthetic roofing underlayment bonded to the first side of the layer of insulation, the synthetic roofing underlayment being waterproof whereby when the roofing underlayment is placed between the roof deck and the roofing material fastened to the roof deck, the synthetic roofing underlayment resists water that penetrates the roofing material from reaching the roof material is deck while the roofing fastened to the roof deck;
- and
- (c) a reflective layer bonded to the second side of the layer of insulation, the reflective layer having a reflective surface forming an outer surface of the roofing underlayment after the reflective layer.
A roof assembly comprising:
- a roof deck;
- a roofing material placed over and fastened to the roof deck;
- and
- a roofing underlayment being disposed between the roof deck and the roofing material, the roofing underlayment comprising:
- (a) a first layer of insulation, the first layer of insulation having opposite first and second outer sides;
- (b) a synthetic roofing underlayment bonded to the first side of the layer of insulation, the synthetic roofing underlayment being waterproof whereby when the roofing underlayment is placed between the roof deck and the roofing material fastened to the deck, the synthetic roofing underlayment resists water that penetrates the roofing material from reaching the roof deck while the roofing material is fastened to the roof deck;
- and
- (c) a reflective layer bonded to the second side of the layer of insulation, the reflective layer having a reflective surface forming an outer surface of the roofing underlayment after the reflective layer.
Dependencies are inferred from the claim text.